Data Report
Focal mechanisms / 199901
Contributed by NIED
Earthquake Information 1999/01/31,19:29(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/31,19:29 | 43.3 N | 147.0 E | 50 km | Mj 5.3 | E_OFF_HOKKAIDO |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
240 ; 143 | 84 ; 41 | -131 ; -9 | 4.06e+17 Nm | 50 km | Mw 5.7 | 93.49 |
Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region
Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/31,17:01(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/31,17:01 | 37.2 N | 141.5 E | 50 km | Mj 4.7 | E_OFF_FUKUSHIMA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
23 ; 247 | 78 ; 16 | 79 ; 132 | 1.38e+15 Nm | 32 km | Mw 4.1 | 76.41 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/31,16:52(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/31,16:52 | 37.1 N | 141.5 E | 50 km | Mj 5.4 | E_OFF_FUKUSHIMA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
22 ; 218 | 64 ; 27 | 83 ; 104 | 8.58e+16 Nm | 44 km | Mw 5.3 | 91.77 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/29,22:06(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/29,22:06 | 36.8 N | 137.7 E | 10 km | Mj 3.8 | TOYAMA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
329 ; 238 | 83 ; 81 | 9 ; 173 | 8.55e+14 Nm | 11 km | Mw 3.9 | 87.20 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/29,12:01(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/29,12:01 | 29.1 N | 130.1 E | 60 km | Mj 4.3 | NEAR_AMAMI-OSHIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
34 ; 209 | 73 ; 17 | 92 ; 84 | 8.34e+15 Nm | 35 km | Mw 4.6 | 60.64 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/28,05:17(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/28,05:17 | 36.7 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 |
49 ; 151 | 84 ; 28 | 118 ; 13 | 7.39e+14 Nm | 35 km | Mw 3.9 | 88.66 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/28,04:46(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/28,04:46 | 36.4 N | 138.0 E | 10 km | Mj 3.5 | NEAR_MATSUSHIRO |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
353 ; 240 | 70 ; 43 | 51 ; 151 | 4.06e+14 Nm | 11 km | Mw 3.7 | 87.73 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/28,02:19(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/28,02:19 | 36.4 N | 138.0 E | 10 km | Mj 3.6 | NEAR_MATSUSHIRO |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
350 ; 241 | 70 ; 47 | 46 ; 152 | 3.18e+14 Nm | 11 km | Mw 3.6 | 82.07 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/28,01:25(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/28,01:25 | 36.4 N | 138.0 E | 10 km | Mj 4.7 | NEAR_MATSUSHIRO |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
357 ; 243 | 67 ; 47 | 48 ; 148 | 1.17e+16 Nm | 11 km | Mw 4.7 | 92.46 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/27,01:27(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/27,01:27 | 34.8 N | 139.7 E | 40 km | Mj 3.8 | SAGAMINADA |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
355 ; 254 | 81 ; 41 | 50 ; 166 | 2.63e+14 Nm | 35 km | Mw 3.6 | 85.85 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/24,21:05(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/24,21:05 | 43.7 N | 145.6 E | 100 km | Mj 3.6 | NEAR_KUNASHIRI_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
78 ; 199 | 73 ; 31 | 117 ; 35 | 9.46e+14 Nm | 104 km | Mw 4.0 | 85.14 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/24,20:03(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/24,20:03 | 32.7 N | 132.3 E | 50 km | Mj 3.9 | HYUGANADA_REGION |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
158 ; 16 | 60 ; 36 | -112 ; -57 | 1.33e+15 Nm | 35 km | Mw 4.0 | 83.85 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/24,00:37(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/24,00:37 | 30.6 N | 131.3 E | 50 km | Mj 5.9 | NEAR_TANEGASHIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
168 ; 77 | 90 ; 23 | -113 ; -1 | 6.58e+18 Nm | 35 km | Mw 6.5 | 78.96 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/23,19:17(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/23,19:17 | 33.7 N | 138.6 E | 290 km | Mj 5.4 | NEAR_NIIJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
350 ; 82 | 88 ; 36 | -54 ; -177 | 6.47e+16 Nm | 280 km | Mw 5.2 | 91.79 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/21,22:02(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/21,22:02 | 38.6 N | 143.1 E | shallow | Mj 5.6 | FAR_E_OFF_MIYAGI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
23 ; 186 | 68 ; 22 | 96 ; 75 | 4.77e+17 Nm | 23 km | Mw 5.8 | 90.09 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/20,22:26(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/20,22:26 | 34.6 N | 135.0 E | 20 km | Mj 3.7 | AWAJISHIMA_ISLAND_REGION |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
57 ; 326 | 89 ; 74 | -164 ; -1 | 2.80e+14 Nm | 32 km | Mw 3.6 | 63.15 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/18,17:35(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/18,17:35 | 41.6 N | 141.5 E | 90 km | Mj 4.8 | TSUGARU_STRAIT_REGION |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
171 ; 72 | 77 ; 55 | 36 ; 165 | 8.46e+15 Nm | 101 km | Mw 4.6 | 89.91 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/17,05:29(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/17,05:29 | 43.2 N | 147.4 E | 60 km | Mj 5.1 | E_OFF_HOKKAIDO |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
40 ; 178 | 75 ; 20 | 103 ; 50 | 3.37e+16 Nm | 41 km | Mw 5.0 | 80.41 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/16,06:41(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/16,06:41 | 36.7 N | 141.5 E | 20 km | Mj 4.5 | E_OFF_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
9 ; 222 | 89 ; 1 | 89 ; 123 | 4.11e+15 Nm | 20 km | Mw 4.4 | 76.51 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/16,01:35(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/16,01:35 | 44.8 N | 148.5 E | 160 km | Mj 4.4 | SE_OFF_ETOROFU |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
66 ; 157 | 89 ; 46 | 136 ; 2 | 3.49e+15 Nm | 135 km | Mw 4.3 | 77.22 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/15,11:37(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/15,11:37 | 42.9 N | 146.3 E | 50 km | Mj 4.0 | OFF_NEMURO_PENINSULA |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
59 ; 176 | 73 ; 33 | 119 ; 32 | 1.03e+15 Nm | 29 km | Mw 4.0 | 70.84 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/14,04:47(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/14,04:47 | 36.7 N | 141.4 E | 30 km | Mj 4.6 | E_OFF_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
22 ; 188 | 75 ; 15 | 94 ; 77 | 1.17e+16 Nm | 23 km | Mw 4.7 | 88.29 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/13,13:31(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/13,13:31 | 37.2 N | 142.2 E | 30 km | Mj 4.4 | E_OFF_FUKUSHIMA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
343 ; 159 | 76 ; 15 | 91 ; 85 | 3.13e+15 Nm | 29 km | Mw 4.3 | 83.50 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/12,13:10(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/12,13:10 | 39.0 N | 143.7 E | 10 km | Mj 5.0 | FAR_E_OFF_SANRIKU |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
24 ; 197 | 59 ; 31 | 93 ; 84 | 1.92e+16 Nm | 17 km | Mw 4.8 | 79.20 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/11,00:10(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/11,00:10 | 36.0 N | 136.7 E | shallow | Mj 4.3 | FUKUI_GIFU_BORDER_REGION |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
160 ; 347 | 52 ; 39 | 86 ; 96 | 4.36e+15 Nm | 5 km | Mw 4.4 | 88.45 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/09,18:15(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/09,18:15 | 32.4 N | 136.5 E | 50 km | Mj 3.8 | SHIKOKU_BASIN |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
164 ; 67 | 84 ; 45 | -134 ; -9 | 2.48e+15 Nm | 8 km | Mw 4.2 | 88.95 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/09,10:15(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/09,10:15 | 37.8 N | 141.7 E | 80 km | Mj 4.2 | E_OFF_FUKUSHIMA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
228 ; 79 | 50 ; 44 | -111 ; -67 | 1.44e+15 Nm | 77 km | Mw 4.1 | 70.33 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/09,03:06(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/09,03:06 | 44.1 N | 147.4 E | 120 km | Mj 5.8 | E_OFF_HOKKAIDO |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
261 ; 122 | 71 ; 24 | -105 ; -52 | 1.63e+17 Nm | 101 km | Mw 5.4 | 69.09 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/07,11:38(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/07,11:38 | 43.7 N | 148.1 E | 50 km | Mj 4.5 | SE_OFF_ETOROFU |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
202 ; 69 | 74 ; 22 | 74 ; 135 | 6.78e+15 Nm | 35 km | Mw 4.5 | 83.70 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/07,08:58(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/07,08:58 | 43.3 N | 146.8 E | 60 km | Mj 4.3 | E_OFF_HOKKAIDO |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
260 ; 167 | 81 ; 73 | -163 ; -10 | 1.42e+15 Nm | 56 km | Mw 4.1 | 75.38 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/04,19:48(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/04,19:48 | 40.1 N | 142.9 E | 20 km | Mj 3.8 | NE_OFF_IWATE_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
27 ; 264 | 77 ; 23 | 71 ; 146 | 1.55e+14 Nm | 26 km | Mw 3.4 | 58.43 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/04,07:58(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/04,07:58 | 41.3 N | 142.6 E | 40 km | Mj 3.9 | E_OFF_AOMORI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
27 ; 211 | 76 ; 14 | 89 ; 94 | 1.60e+15 Nm | 41 km | Mw 4.1 | 66.06 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/04,04:50(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/04,04:50 | 32.5 N | 141.1 E | 40 km | Mj 4.5 | E_OFF_HACHIJOJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
330 ; 233 | 86 ; 27 | 63 ; 172 | 1.97e+16 Nm | 47 km | Mw 4.8 | 94.33 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/02,15:45(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/02,15:45 | 36.2 N | 141.8 E | 50 km | Mj 4.0 | FAR_E_OFF_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
32 ; 198 | 73 ; 17 | 94 ; 77 | 2.21e+15 Nm | 17 km | Mw 4.2 | 79.96 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/02,07:19(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/02,07:19 | 36.2 N | 141.7 E | 50 km | Mj 3.8 | FAR_E_OFF_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
173 ; 278 | 77 ; 44 | -48 ; -160 | 9.51e+14 Nm | 11 km | Mw 4.0 | 80.45 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/02,07:06(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/02,07:06 | 36.2 N | 141.8 E | 50 km | Mj 3.9 | FAR_E_OFF_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
3 ; 248 | 76 ; 30 | 63 ; 152 | 2.28e+15 Nm | 20 km | Mw 4.2 | 82.65 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/02,00:00(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/02,00:00 | 36.2 N | 141.7 E | 50 km | Mj 3.9 | FAR_E_OFF_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
21 ; 230 | 74 ; 18 | 81 ; 118 | 8.56e+14 Nm | 20 km | Mw 3.9 | 84.65 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/01,22:08(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/01,22:08 | 36.2 N | 141.7 E | 30 km | Mj 4.6 | FAR_E_OFF_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
10 ; 231 | 62 ; 35 | 68 ; 126 | 5.26e+15 Nm | 26 km | Mw 4.4 | 76.37 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/01,18:30(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/01,18:30 | 36.2 N | 141.7 E | 40 km | Mj 4.2 | FAR_E_OFF_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
30 ; 169 | 76 ; 19 | 102 ; 50 | 3.61e+15 Nm | 17 km | Mw 4.3 | 82.78 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/01,16:43(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/01,16:43 | 36.2 N | 141.7 E | 50 km | Mj 4.0 | FAR_E_OFF_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
17 ; 225 | 71 ; 21 | 80 ; 117 | 2.36e+15 Nm | 17 km | Mw 4.2 | 76.26 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/01,16:20(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/01,16:20 | 36.2 N | 141.8 E | 20 km | Mj 5.0 | FAR_E_OFF_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
7 ; 234 | 67 ; 32 | 67 ; 132 | 6.69e+16 Nm | 23 km | Mw 5.2 | 78.63 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/01,15:46(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/01,15:46 | 36.2 N | 141.8 E | 30 km | Mj 4.2 | FAR_E_OFF_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
25 ; 186 | 68 ; 23 | 97 ; 72 | 5.80e+15 Nm | 17 km | Mw 4.5 | 86.54 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/01,14:30(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/01,14:30 | 33.3 N | 131.3 E | 10 km | Mj 3.7 | NORTHERN_OITA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
81 ; 229 | 50 ; 45 | -68 ; -113 | 1.93e+15 Nm | 8 km | Mw 4.2 | 82.42 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1999/01/01,11:47(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1999/01/01,11:47 | 44.2 N | 148.7 E | 60 km | Mj 4.2 | SE_OFF_ETOROFU |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
34 ; 128 | 82 ; 65 | 155 ; 8 | 7.67e+15 Nm | 44 km | Mw 4.6 | 63.57 |

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

Seismograms
retreive digital waveform data
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