Data Report
Focal mechanisms / 199807
Contributed by NIED
Earthquake Information 1998/07/31,19:12(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/31,19:12 | 34.6 N | 136.1 E | 50 km | Mj 3.6 | NORTHERN_MIE_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
25 ; 196 | 58 ; 33 | -85 ; -98 | 2.16e+14 Nm | 44 km | Mw 3.5 | 55.50 |
Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region
Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/31,01:12(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/31,01:12 | 35.5 N | 140.2 E | 80 km | Mj 4.3 | CENTRAL_CHIBA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
162 ; 257 | 81 ; 63 | -28 ; -170 | 1.30e+15 Nm | 62 km | Mw 4.0 | 87.62 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/30,09:42(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/30,09:42 | 43.6 N | 149.3 E | 60 km | Mj 4.6 | SE_OFF_ETOROFU |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
255 ; 110 | 51 ; 45 | -113 ; -64 | 2.30e+16 Nm | 65 km | Mw 4.9 | 72.83 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/29,22:32(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/29,22:32 | 34.3 N | 139.3 E | 10 km | Mj 3.7 | NEAR_NIIJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
130 ; 233 | 66 ; 63 | 150 ; 27 | 6.07e+14 Nm | 17 km | Mw 3.8 | 59.85 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/28,21:21(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/28,21:21 | 31.1 N | 131.6 E | 40 km | Mj 3.7 | SE_OFF_OSUMI_PEN |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
20 ; 208 | 67 ; 23 | 87 ; 98 | 1.17e+15 Nm | 26 km | Mw 4.0 | 59.63 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/28,02:44(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/28,02:44 | 42.1 N | 144.0 E | 60 km | Mj 3.9 | SE_OFF_TOKACHI |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
34 ; 240 | 68 ; 24 | 80 ; 114 | 1.17e+15 Nm | 47 km | Mw 4.0 | 83.37 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/28,02:41(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/28,02:41 | 42.1 N | 144.0 E | 60 km | Mj 3.7 | SE_OFF_TOKACHI |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
31 ; 245 | 77 ; 15 | 81 ; 124 | 4.88e+14 Nm | 44 km | Mw 3.8 | 65.50 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/27,20:20(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/27,20:20 | 31.9 N | 141.1 E | shallow | Mj 3.5 | NEAR_TORISHIMA_IS |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
285 ; 179 | 63 ; 62 | -148 ; -31 | 3.50e+14 Nm | 14 km | Mw 3.7 | 77.61 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/27,17:05(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/27,17:05 | 37.1 N | 141.8 E | 30 km | Mj 3.9 | E_OFF_FUKUSHIMA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
159 ; 336 | 63 ; 27 | 91 ; 87 | 3.01e+14 Nm | 29 km | Mw 3.6 | 67.42 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/27,08:53(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/27,08:53 | 33.1 N | 132.3 E | 10 km | Mj 3.9 | BUNGO_CHANNEL |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
45 ; 142 | 78 ; 58 | 147 ; 14 | 2.80e+14 Nm | 11 km | Mw 3.6 | 85.24 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/26,12:28(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/26,12:28 | 44.6 N | 147.2 E | 160 km | Mj 4.0 | NEAR_ETOROFU_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
208 ; 303 | 84 ; 48 | 137 ; 8 | 5.15e+15 Nm | 155 km | Mw 4.4 | 92.06 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/26,08:50(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/26,08:50 | 42.3 N | 143.0 E | 60 km | Mj 3.6 | HIDAKA_MOUNTAINS_REGION |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
50 ; 184 | 77 ; 19 | 103 ; 46 | 5.47e+14 Nm | 56 km | Mw 3.8 | 94.77 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/25,21:16(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/25,21:16 | 37.8 N | 141.4 E | 70 km | Mj 3.8 | E_OFF_FUKUSHIMA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
175 ; 281 | 84 ; 20 | 109 ; 17 | 1.47e+14 Nm | 62 km | Mw 3.4 | 71.00 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/23,22:26(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/23,22:26 | 40.4 N | 142.1 E | 50 km | Mj 3.6 | NE_OFF_IWATE_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
23 ; 154 | 73 ; 25 | 108 ; 43 | 1.73e+14 Nm | 71 km | Mw 3.5 | 56.96 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/23,15:18(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/23,15:18 | 32.6 N | 140.4 E | 130 km | Mj 4.3 | E_OFF_HACHIJOJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
345 ; 246 | 87 ; 19 | 72 ; 171 | 8.43e+14 Nm | 95 km | Mw 3.9 | 55.03 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/23,11:07(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/23,11:07 | 31.7 N | 132.0 E | 20 km | Mj 4.1 | HYUGANADA_REGION |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
40 ; 218 | 47 ; 43 | 91 ; 88 | 4.36e+15 Nm | 23 km | Mw 4.4 | 64.57 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/23,10:58(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/23,10:58 | 42.1 N | 143.7 E | 60 km | Mj 3.6 | SE_OFF_TOKACHI |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
57 ; 237 | 66 ; 24 | 90 ; 90 | 1.19e+15 Nm | 44 km | Mw 4.0 | 74.39 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/22,13:26(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/22,13:26 | 41.3 N | 143.2 E | 50 km | Mj 3.8 | E_OFF_AOMORI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
338 ; 107 | 60 ; 42 | -59 ; -132 | 8.89e+14 Nm | 32 km | Mw 3.9 | 73.88 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/22,11:45(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/22,11:45 | 41.3 N | 143.3 E | 50 km | Mj 3.5 | E_OFF_AOMORI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
347 ; 106 | 65 ; 43 | -53 ; -142 | 3.22e+14 Nm | 32 km | Mw 3.6 | 64.27 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/21,18:50(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/21,18:50 | 40.1 N | 142.5 E | 30 km | Mj 4.0 | NE_OFF_IWATE_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
23 ; 229 | 69 ; 23 | 80 ; 114 | 4.24e+14 Nm | 47 km | Mw 3.7 | 79.70 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/21,05:02(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/21,05:02 | 39.9 N | 143.7 E | 10 km | Mj 3.8 | FAR_E_OFF_SANRIKU |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
15 ; 229 | 58 ; 37 | 70 ; 119 | 1.06e+15 Nm | 11 km | Mw 4.0 | 75.44 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/21,03:14(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/21,03:14 | 37.0 N | 140.4 E | 90 km | Mj 4.4 | MID_FUKUSHIMA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
216 ; 69 | 75 ; 18 | 80 ; 122 | 1.75e+15 Nm | 89 km | Mw 4.1 | 91.61 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/20,08:11(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/20,08:11 | 39.3 N | 142.2 E | 50 km | Mj 3.7 | E_OFF_IWATE_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
218 ; 314 | 77 ; 66 | 155 ; 14 | 1.83e+14 Nm | 68 km | Mw 3.5 | 55.52 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/18,16:18(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/18,16:18 | 35.7 N | 140.7 E | 50 km | Mj 4.4 | NEAR_CHOSHI_CITY |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
358 ; 163 | 70 ; 21 | 95 ; 76 | 2.61e+16 Nm | 56 km | Mw 4.9 | 89.72 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/16,20:08(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/16,20:08 | 32.7 N | 130.9 E | 10 km | Mj 4.1 | SOUTHERN_KUMAMOTO_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
255 ; 93 | 83 ; 7 | -92 ; -72 | 4.43e+15 Nm | 8 km | Mw 4.4 | 89.60 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/16,01:35(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/16,01:35 | 44.2 N | 148.1 E | 40 km | Mj 4.5 | SE_OFF_ETOROFU |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
53 ; 225 | 78 ; 12 | 92 ; 82 | 1.40e+16 Nm | 53 km | Mw 4.7 | 89.70 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/15,20:39(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/15,20:39 | 39.3 N | 143.8 E | 20 km | Mj 4.4 | FAR_E_OFF_SANRIKU |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
4 ; 198 | 61 ; 30 | 83 ; 102 | 4.38e+15 Nm | 11 km | Mw 4.4 | 81.63 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/15,14:31(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/15,14:31 | 34.6 N | 136.1 E | 40 km | Mj 3.5 | NORTHERN_MIE_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
51 ; 228 | 71 ; 19 | -89 ; -92 | 1.05e+14 Nm | 50 km | Mw 3.3 | 78.37 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/14,22:09(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/14,22:09 | 36.1 N | 139.9 E | 50 km | Mj 4.6 | SW_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
45 ; 239 | 69 ; 21 | 85 ; 103 | 9.13e+15 Nm | 44 km | Mw 4.6 | 90.31 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/14,18:07(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/14,18:07 | 36.3 N | 141.8 E | 50 km | Mj 3.6 | FAR_E_OFF_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
6 ; 251 | 74 ; 35 | 59 ; 150 | 6.13e+14 Nm | 17 km | Mw 3.8 | 85.99 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/13,09:42(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/13,09:42 | 35.1 N | 139.9 E | 90 km | Mj 3.7 | SOUTHERN_BOSO_PENINSULA |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
172 ; 37 | 83 ; 10 | 83 ; 135 | 5.12e+14 Nm | 92 km | Mw 3.8 | 85.91 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/10,12:34(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/10,12:34 | 36.3 N | 141.8 E | 60 km | Mj 3.8 | FAR_E_OFF_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
165 ; 257 | 89 ; 32 | -58 ; -178 | 2.38e+15 Nm | 17 km | Mw 4.2 | 82.37 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/10,05:29(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/10,05:29 | 40.5 N | 143.8 E | 10 km | Mj 4.3 | FAR_E_OFF_SANRIKU |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
43 ; 190 | 65 ; 29 | 105 ; 60 | 1.45e+16 Nm | 14 km | Mw 4.7 | 77.70 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/09,08:38(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/09,08:38 | 44.6 N | 146.5 E | 180 km | Mj 4.7 | NEAR_KUNASHIRI_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
313 ; 51 | 81 ; 48 | -43 ; -168 | 1.41e+16 Nm | 175 km | Mw 4.7 | 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 1998/07/09,06:48(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/09,06:48 | 37.7 N | 142.2 E | 30 km | Mj 4.2 | SE_OFF_MIYAGI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
209 ; 108 | 80 ; 44 | 47 ; 166 | 3.83e+15 Nm | 32 km | Mw 4.4 | 77.07 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/08,18:45(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/08,18:45 | 42.9 N | 146.1 E | 50 km | Mj 4.1 | OFF_NEMURO_PENINSULA |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
48 ; 225 | 74 ; 16 | 91 ; 87 | 1.76e+15 Nm | 23 km | Mw 4.1 | 85.75 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/07,14:32(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/07,14:32 | 32.7 N | 140.4 E | 110 km | Mj 5.0 | E_OFF_HACHIJOJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
122 ; 360 | 75 ; 27 | -112 ; -36 | 4.53e+16 Nm | 140 km | Mw 5.1 | 84.42 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/06,19:08(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/06,19:08 | 31.5 N | 131.1 E | 60 km | Mj 4.3 | OSUMI_PENINSULA_REGION |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
60 ; 323 | 81 ; 50 | 40 ; 169 | 3.53e+15 Nm | 50 km | Mw 4.3 | 92.68 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/06,01:54(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/06,01:54 | 36.1 N | 139.9 E | 50 km | Mj 3.7 | SW_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
55 ; 241 | 66 ; 24 | 88 ; 96 | 2.73e+14 Nm | 56 km | Mw 3.6 | 69.16 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/05,14:10(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/05,14:10 | 36.3 N | 140.8 E | 50 km | Mj 4.0 | E_OFF_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
173 ; 264 | 88 ; 63 | -27 ; -178 | 3.05e+14 Nm | 56 km | Mw 3.6 | 79.97 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/05,10:17(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/05,10:17 | 32.7 N | 141.4 E | 60 km | Mj 3.7 | E_OFF_HACHIJOJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
175 ; 292 | 78 ; 25 | -68 ; -150 | 1.26e+15 Nm | 56 km | Mw 4.0 | 90.34 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/03,19:05(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/03,19:05 | 43.2 N | 147.4 E | 40 km | Mj 4.3 | E_OFF_HOKKAIDO |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
159 ; 13 | 50 ; 45 | 67 ; 115 | 2.40e+15 Nm | 29 km | Mw 4.2 | 78.32 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/03,12:27(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/03,12:27 | 35.7 N | 140.7 E | 50 km | Mj 3.7 | NEAR_CHOSHI_CITY |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
338 ; 232 | 84 ; 21 | 70 ; 163 | 5.27e+14 Nm | 50 km | Mw 3.8 | 85.30 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1998/07/03,02:31(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/07/03,02:31 | 43.2 N | 146.9 E | 60 km | Mj 4.6 | E_OFF_HOKKAIDO |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
72 ; 184 | 86 ; 10 | 99 ; 22 | 1.56e+16 Nm | 35 km | Mw 4.8 | 91.51 |

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

Seismograms
retreive digital waveform data
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