Data Report
Focal mechanisms / 199903
Contributed by NIED
Earthquake Information 1999/03/31,23:08(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/31,23:08 | 41.9 N | 139.4 E | 10 km | Mj 3.7 | SW_OFF_HOKKAIDO |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
351 ; 153 | 57 ; 35 | 100 ; 75 | 1.95e+14 Nm | 5 km | Mw 3.5 | 58.55 |
Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region
Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/31,00:39(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/31,00:39 | 36.4 N | 141.8 E | 60 km | Mj 3.5 | FAR_E_OFF_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
26 ; 192 | 69 ; 22 | 95 ; 76 | 6.60e+14 Nm | 35 km | Mw 3.8 | 81.99 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/29,01:25(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/29,01:25 | 31.9 N | 131.1 E | 10 km | Mj 3.7 | SOUTHERN_MIYAZAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
215 ; 119 | 80 ; 58 | -147 ; -11 | 1.93e+14 Nm | 8 km | Mw 3.5 | 73.60 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/28,15:45(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/28,15:45 | 27.7 N | 130.1 E | 50 km | Mj 3.9 | NEAR_AMAMI-OSHIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
330 ; 72 | 84 ; 24 | -67 ; -166 | 3.68e+15 Nm | 11 km | Mw 4.3 | 69.40 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/28,14:21(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/28,14:21 | 43.6 N | 146.1 E | 100 km | Mj 3.6 | NEAR_KUNASHIRI_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
223 ; 74 | 59 ; 35 | -107 ; -64 | 7.57e+14 Nm | 104 km | Mw 3.9 | 81.59 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/27,23:19(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/27,23:19 | 27.2 N | 129.4 E | 20 km | Mj 4.0 | NEAR_AMAMI-OSHIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
21 ; 200 | 81 ; 9 | 90 ; 89 | 1.52e+15 Nm | 14 km | Mw 4.1 | 91.16 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/27,21:35(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/27,21:35 | 34.1 N | 139.1 E | 10 km | Mj 3.6 | NEAR_NIIJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
121 ; 27 | 78 ; 71 | -161 ; -13 | 6.47e+14 Nm | 8 km | Mw 3.8 | 83.96 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/27,16:37(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/27,16:37 | 34.2 N | 139.0 E | 10 km | Mj 4.9 | NEAR_NIIJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
42 ; 133 | 83 ; 82 | -8 ; -173 | 3.61e+16 Nm | 11 km | Mw 5.0 | 92.70 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/27,11:53(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/27,11:53 | 36.1 N | 140.0 E | 80 km | Mj 3.9 | SW_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
3 ; 223 | 62 ; 35 | 68 ; 125 | 8.45e+14 Nm | 74 km | Mw 3.9 | 78.86 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/27,05:04(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/27,05:04 | 25.6 N | 129.3 E | 40 km | Mj 3.9 | NEAR_MINAMI-DAITOJIMA_IS |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
10 ; 190 | 58 ; 32 | -90 ; -89 | 1.53e+15 Nm | 5 km | Mw 4.1 | 69.34 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/26,03:42(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/26,03:42 | 38.3 N | 143.5 E | 10 km | Mj 3.5 | FAR_E_OFF_MIYAGI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
32 ; 197 | 59 ; 31 | 98 ; 77 | 6.10e+14 Nm | 11 km | Mw 3.8 | 64.46 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/26,02:31(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/26,02:31 | 32.3 N | 141.1 E | 40 km | Mj 3.5 | E_OFF_HACHIJOJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
168 ; 325 | 64 ; 28 | 100 ; 70 | 1.76e+15 Nm | 47 km | Mw 4.1 | 87.64 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/25,23:31(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/25,23:31 | 36.5 N | 140.6 E | 50 km | Mj 5.1 | NORTHERN_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
15 ; 196 | 67 ; 23 | 90 ; 90 | 4.55e+16 Nm | 56 km | Mw 5.1 | 94.58 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/25,22:58(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/25,22:58 | 36.2 N | 140.3 E | 70 km | Mj 3.6 | SOUTHERN_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
191 ; 54 | 54 ; 45 | 61 ; 124 | 3.11e+14 Nm | 65 km | Mw 3.6 | 58.93 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/25,10:43(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/25,10:43 | 28.8 N | 130.9 E | 30 km | Mj 4.6 | NEAR_AMAMI-OSHIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
210 ; 94 | 57 ; 56 | 42 ; 139 | 1.09e+16 Nm | 20 km | Mw 4.7 | 56.41 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/25,09:58(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/25,09:58 | 33.4 N | 141.6 E | 60 km | Mj 3.7 | E_OFF_HACHIJOJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
129 ; 249 | 71 ; 34 | -62 ; -144 | 5.81e+15 Nm | 59 km | Mw 4.5 | 51.97 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/24,15:07(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/24,15:07 | 33.7 N | 135.2 E | 50 km | Mj 4.6 | S_PART_OF_KII_CHANNEL |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
184 ; 90 | 82 ; 63 | 27 ; 171 | 5.01e+15 Nm | 53 km | Mw 4.4 | 92.08 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/23,20:15(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/23,20:15 | 29.6 N | 128.3 E | 10 km | Mj 5.7 | NW_OFF_AMAMI-OSHIMA_IS |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
216 ; 123 | 88 ; 33 | -123 ; -3 | 3.30e+17 Nm | 8 km | Mw 5.6 | 82.63 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/23,04:23(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/23,04:23 | 33.4 N | 141.3 E | 30 km | Mj 4.9 | E_OFF_HACHIJOJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
29 ; 161 | 73 ; 24 | 108 ; 44 | 5.68e+16 Nm | 5 km | Mw 5.1 | 84.87 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/22,20:54(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/22,20:54 | 40.9 N | 142.0 E | 60 km | Mj 4.3 | E_OFF_AOMORI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
30 ; 250 | 77 ; 17 | 79 ; 129 | 2.05e+15 Nm | 65 km | Mw 4.2 | 65.56 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/22,17:26(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/22,17:26 | 37.2 N | 141.9 E | 40 km | Mj 4.5 | E_OFF_FUKUSHIMA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
178 ; 32 | 52 ; 43 | 67 ; 116 | 1.38e+15 Nm | 32 km | Mw 4.1 | 65.57 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/21,10:18(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/21,10:18 | 40.2 N | 142.5 E | 40 km | Mj 4.7 | NE_OFF_IWATE_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
22 ; 167 | 71 ; 23 | 103 ; 57 | 1.09e+16 Nm | 41 km | Mw 4.7 | 90.87 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/20,00:08(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/20,00:08 | 29.5 N | 128.3 E | shallow | Mj 3.8 | NW_OFF_AMAMI-OSHIMA_IS |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
122 ; 229 | 71 ; 49 | -44 ; -155 | 4.89e+15 Nm | 5 km | Mw 4.4 | 73.59 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/19,22:54(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/19,22:54 | 34.7 N | 142.0 E | 70 km | Mj 3.5 | FAR_E_OFF_CENTRAL_HONSHU |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
355 ; 248 | 63 ; 60 | 35 ; 148 | 2.75e+15 Nm | 14 km | Mw 4.3 | 55.65 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/19,10:33(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/19,10:33 | 36.4 N | 140.9 E | 40 km | Mj 4.2 | E_OFF_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
14 ; 214 | 68 ; 23 | 83 ; 108 | 1.13e+15 Nm | 41 km | Mw 4.0 | 90.80 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/19,07:55(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/19,07:55 | 45.3 N | 140.1 E | 20 km | Mj 4.2 | EASTERN_SEA_OF_JAPAN |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
32 ; 207 | 61 ; 29 | 92 ; 86 | 7.16e+14 Nm | 5 km | Mw 3.9 | 83.15 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/18,17:55(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/18,17:55 | 41.1 N | 143.2 E | 50 km | Mj 5.7 | E_OFF_AOMORI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
22 ; 229 | 62 ; 31 | 77 ; 113 | 7.14e+17 Nm | 35 km | Mw 5.9 | 73.68 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/18,12:27(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/18,12:27 | 41.2 N | 142.4 E | 60 km | Mj 4.6 | E_OFF_AOMORI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
332 ; 233 | 77 ; 56 | 35 ; 164 | 3.56e+15 Nm | 44 km | Mw 4.3 | 92.13 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/17,18:51(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/17,18:51 | 43.6 N | 147.2 E | 60 km | Mj 4.4 | E_OFF_HOKKAIDO |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
193 ; 96 | 75 ; 67 | 24 ; 164 | 3.69e+15 Nm | 50 km | Mw 4.3 | 89.49 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/17,06:57(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/17,06:57 | 35.0 N | 140.1 E | 60 km | Mj 3.9 | SE_OFF_BOSO_PENINSULA |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
176 ; 56 | 59 ; 51 | 48 ; 138 | 4.97e+14 Nm | 50 km | Mw 3.8 | 66.49 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/16,07:43(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/16,07:43 | 35.3 N | 135.9 E | 10 km | Mj 5.1 | NW_SHIGA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
17 ; 172 | 66 ; 26 | 101 ; 67 | 1.83e+16 Nm | 8 km | Mw 4.8 | 89.88 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/15,09:45(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/15,09:45 | 43.4 N | 139.2 E | 40 km | Mj 4.4 | NW_OFF_SHAKOTAN_PEN |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
26 ; 196 | 70 ; 20 | 94 ; 80 | 1.27e+16 Nm | 8 km | Mw 4.7 | 83.73 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/15,03:51(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/15,03:51 | 44.6 N | 149.4 E | 70 km | Mj 4.4 | SE_OFF_ETOROFU |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
38 ; 150 | 69 ; 45 | -49 ; -150 | 1.41e+16 Nm | 29 km | Mw 4.7 | 81.96 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/15,01:46(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/15,01:46 | 33.6 N | 138.2 E | 320 km | Mj 4.2 | FAR_S_OFF_TOKAI_DISTRICT |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
14 ; 105 | 89 ; 44 | -46 ; -178 | 9.17e+15 Nm | 320 km | Mw 4.6 | 87.25 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/14,04:47(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/14,04:47 | 34.3 N | 139.2 E | 10 km | Mj 4.1 | NEAR_NIIJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
323 ; 55 | 83 ; 74 | 164 ; 7 | 1.29e+15 Nm | 14 km | Mw 4.0 | 84.10 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/14,01:50(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/14,01:50 | 34.2 N | 139.2 E | 10 km | Mj 3.5 | NEAR_NIIJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
157 ; 53 | 77 ; 44 | -133 ; -19 | 3.10e+14 Nm | 5 km | Mw 3.6 | 81.50 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/14,01:34(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/14,01:34 | 34.3 N | 139.2 E | 10 km | Mj 3.5 | NEAR_NIIJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
349 ; 199 | 61 ; 33 | -106 ; -64 | 1.57e+15 Nm | 5 km | Mw 4.1 | 86.73 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
retreive digital waveform data
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Earthquake Information 1999/03/14,00:44(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/14,00:44 | 34.2 N | 139.2 E | 10 km | Mj 3.5 | NEAR_NIIJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
150 ; 32 | 56 ; 54 | -135 ; -43 | 2.62e+14 Nm | 5 km | Mw 3.6 | 63.37 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

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Earthquake Information 1999/03/14,00:37(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/14,00:37 | 34.2 N | 139.2 E | 10 km | Mj 3.9 | NEAR_NIIJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
353 ; 199 | 59 ; 34 | -104 ; -68 | 2.90e+15 Nm | 5 km | Mw 4.3 | 86.04 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

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Earthquake Information 1999/03/14,00:21(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/14,00:21 | 34.2 N | 139.2 E | 10 km | Mj 3.6 | NEAR_NIIJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
325 ; 60 | 80 ; 63 | 153 ; 11 | 3.38e+14 Nm | 17 km | Mw 3.7 | 59.58 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

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Earthquake Information 1999/03/14,00:04(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/14,00:04 | 34.2 N | 139.1 E | 20 km | Mj 4.7 | NEAR_NIIJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
348 ; 225 | 70 ; 34 | -118 ; -37 | 2.39e+16 Nm | 5 km | Mw 4.9 | 80.37 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

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Earthquake Information 1999/03/13,19:52(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/13,19:52 | 33.5 N | 138.2 E | 50 km | Mj 3.7 | FAR_S_OFF_TOKAI_DISTRICT |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
226 ; 125 | 68 ; 64 | 28 ; 156 | 4.47e+14 Nm | 8 km | Mw 3.7 | 87.68 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

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Earthquake Information 1999/03/12,15:39(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/12,15:39 | 37.9 N | 140.4 E | 20 km | Mj 3.8 | MID_FUKUSHIMA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
212 ; 353 | 49 ; 48 | 118 ; 61 | 1.64e+14 Nm | 11 km | Mw 3.4 | 75.56 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

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Earthquake Information 1999/03/12,14:24(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/12,14:24 | 35.0 N | 135.6 E | 20 km | Mj 4.1 | KYOTO_OSAKA_BORDER_REG |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
213 ; 331 | 61 ; 49 | 132 ; 39 | 5.46e+14 Nm | 14 km | Mw 3.8 | 74.23 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

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Earthquake Information 1999/03/12,14:09(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/12,14:09 | 41.5 N | 142.7 E | 30 km | Mj 3.6 | E_OFF_AOMORI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
296 ; 28 | 83 ; 70 | -20 ; -172 | 2.69e+14 Nm | 41 km | Mw 3.6 | 70.20 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

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Earthquake Information 1999/03/11,11:06(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/11,11:06 | 39.6 N | 141.9 E | 40 km | Mj 5.0 | NORTHERN_IWATE_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
269 ; 126 | 62 ; 34 | 71 ; 122 | 4.41e+15 Nm | 26 km | Mw 4.4 | 81.13 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

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Earthquake Information 1999/03/10,22:20(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/10,22:20 | 31.3 N | 131.9 E | 50 km | Mj 3.5 | SE_OFF_OSUMI_PEN |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
203 ; 59 | 61 ; 34 | 71 ; 121 | 6.99e+14 Nm | 23 km | Mw 3.9 | 51.53 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

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Earthquake Information 1999/03/09,22:32(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/09,22:32 | 29.6 N | 130.5 E | 70 km | Mj 3.9 | NEAR_AMAMI-OSHIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
215 ; 91 | 61 ; 44 | 55 ; 137 | 8.58e+15 Nm | 68 km | Mw 4.6 | 70.99 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

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Earthquake Information 1999/03/09,07:04(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/09,07:04 | 36.4 N | 141.5 E | 40 km | Mj 3.9 | E_OFF_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
17 ; 216 | 73 ; 17 | 85 ; 108 | 1.57e+15 Nm | 20 km | Mw 4.1 | 87.32 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

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Earthquake Information 1999/03/09,03:53(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/09,03:53 | 32.9 N | 131.0 E | 10 km | Mj 4.6 | NE_KUMAMOTO_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
133 ; 239 | 72 ; 48 | -44 ; -156 | 2.79e+16 Nm | 5 km | Mw 4.9 | 94.01 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

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Earthquake Information 1999/03/09,01:36(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/09,01:36 | 36.7 N | 141.0 E | 50 km | Mj 3.6 | E_OFF_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
135 ; 286 | 60 ; 34 | -74 ; -115 | 2.36e+14 Nm | 47 km | Mw 3.5 | 63.37 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

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Earthquake Information 1999/03/08,22:35(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/08,22:35 | 30.6 N | 131.3 E | 50 km | Mj 3.7 | NEAR_TANEGASHIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
26 ; 240 | 52 ; 43 | 67 ; 116 | 6.79e+14 Nm | 50 km | Mw 3.9 | 67.09 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

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Earthquake Information 1999/03/08,08:46(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/08,08:46 | 39.2 N | 139.9 E | 20 km | Mj 4.5 | W_OFF_AKITA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
190 ; 6 | 60 ; 30 | 92 ; 87 | 1.75e+15 Nm | 8 km | Mw 4.1 | 71.39 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

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Earthquake Information 1999/03/08,01:58(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/08,01:58 | 36.3 N | 140.1 E | 50 km | Mj 4.2 | SW_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
43 ; 265 | 73 ; 23 | 75 ; 130 | 1.03e+15 Nm | 53 km | Mw 4.0 | 87.89 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

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Earthquake Information 1999/03/07,01:03(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/07,01:03 | 43.0 N | 145.8 E | 30 km | Mj 5.1 | OFF_NEMURO_PENINSULA |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
59 ; 307 | 64 ; 52 | -136 ; -34 | 2.54e+16 Nm | 26 km | Mw 4.9 | 74.51 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

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Earthquake Information 1999/03/06,22:11(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/06,22:11 | 37.8 N | 142.3 E | 40 km | Mj 4.0 | SE_OFF_MIYAGI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
197 ; 43 | 51 ; 42 | 73 ; 110 | 4.73e+14 Nm | 20 km | Mw 3.8 | 64.56 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
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Earthquake Information 1999/03/06,11:50(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/06,11:50 | 31.2 N | 130.6 E | 110 km | Mj 4.3 | SATSUMA_PENINSULA_REGION |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
231 ; 324 | 81 ; 75 | 165 ; 10 | 2.62e+15 Nm | 110 km | Mw 4.2 | 80.45 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

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Earthquake Information 1999/03/06,08:22(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/06,08:22 | 37.1 N | 141.5 E | 50 km | Mj 4.3 | E_OFF_FUKUSHIMA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
34 ; 176 | 72 ; 23 | 104 ; 54 | 1.11e+15 Nm | 47 km | Mw 4.0 | 87.27 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

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Earthquake Information 1999/03/06,03:54(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/06,03:54 | 41.9 N | 142.3 E | 60 km | Mj 4.2 | S_OFF_URAKAWA |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
8 ; 177 | 84 ; 6 | 91 ; 80 | 1.50e+16 Nm | 80 km | Mw 4.7 | 60.52 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

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Earthquake Information 1999/03/05,22:18(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/05,22:18 | 36.1 N | 139.5 E | 140 km | Mj 3.9 | EASTERN_SAITAMA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
109 ; 275 | 58 ; 33 | 97 ; 79 | 1.01e+15 Nm | 145 km | Mw 4.0 | 83.74 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

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Earthquake Information 1999/03/05,06:56(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/05,06:56 | 43.4 N | 147.0 E | 40 km | Mj 4.3 | E_OFF_HOKKAIDO |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
234 ; 130 | 81 ; 36 | -125 ; -16 | 4.76e+15 Nm | 44 km | Mw 4.4 | 93.05 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

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Earthquake Information 1999/03/05,06:24(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/05,06:24 | 42.0 N | 142.5 E | 60 km | Mj 4.5 | S_OFF_URAKAWA |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
26 ; 229 | 74 ; 17 | 83 ; 111 | 4.37e+15 Nm | 44 km | Mw 4.4 | 71.38 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

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Earthquake Information 1999/03/03,00:18(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/03,00:18 | 36.4 N | 140.8 E | 50 km | Mj 3.7 | E_OFF_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
22 ; 164 | 67 ; 28 | 107 ; 56 | 2.79e+14 Nm | 53 km | Mw 3.6 | 62.13 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

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Earthquake Information 1999/03/02,16:51(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/02,16:51 | 44.2 N | 148.7 E | 60 km | Mj 3.9 | SE_OFF_ETOROFU |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
31 ; 176 | 60 ; 36 | 110 ; 60 | 1.05e+15 Nm | 35 km | Mw 4.0 | 65.25 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

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Earthquake Information 1999/03/02,14:20(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/02,14:20 | 32.6 N | 132.7 E | 40 km | Mj 4.3 | FAR_E_OFF_MIYAZAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
51 ; 162 | 66 ; 50 | -45 ; -148 | 3.15e+15 Nm | 35 km | Mw 4.3 | 83.62 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

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Earthquake Information 1999/03/02,07:12(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/02,07:12 | 35.7 N | 142.3 E | 50 km | Mj 5.8 | FAR_E_OFF_KANTO |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
353 ; 189 | 62 ; 29 | 82 ; 105 | 6.09e+17 Nm | 11 km | Mw 5.8 | 74.68 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

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Earthquake Information 1999/03/01,05:37(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/03/01,05:37 | 34.4 N | 136.2 E | 10 km | Mj 3.9 | SOUTHERN_MIE_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
24 ; 144 | 71 ; 34 | 119 ; 35 | 3.06e+14 Nm | 11 km | Mw 3.6 | 80.16 |

Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region

Seismograms
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