Data Report
Focal mechanisms / 199810
Contributed by NIED
Earthquake Information 1998/10/31,21:21(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/10/31,21:21 | 35.2 N | 139.8 E | 80 km | Mj 3.6 | TOKYO_BAY_REGION |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
191 ; 60 | 72 ; 27 | 70 ; 136 | 1.13e+15 Nm | 89 km | Mw 4.0 | 92.69 |
Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region
Seismograms
retreive digital waveform data
Back
Earthquake Information 1998/10/31,18:01(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/10/31,18:01 | 36.4 N | 140.6 E | 60 km | Mj 4.2 | NORTHERN_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
19 ; 191 | 67 ; 24 | 93 ; 83 | 1.05e+15 Nm | 50 km | Mw 4.0 | 69.43 |

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

Seismograms
retreive digital waveform data
Back
Earthquake Information 1998/10/27,11:33(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/10/27,11:33 | 33.5 N | 142.0 E | 70 km | Mj 6.1 | FAR_E_OFF_IZU_ISLANDS |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
148 ; 23 | 63 ; 41 | 58 ; 137 | 2.07e+17 Nm | 5 km | Mw 5.5 | 72.39 |

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

Seismograms
retreive digital waveform data
Back
Earthquake Information 1998/10/27,10:23(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/10/27,10:23 | 34.7 N | 140.5 E | 60 km | Mj 3.7 | SE_OFF_BOSO_PENINSULA |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
139 ; 248 | 74 ; 42 | -51 ; -155 | 4.05e+14 Nm | 32 km | Mw 3.7 | 86.62 |

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

Seismograms
retreive digital waveform data
Back
Earthquake Information 1998/10/27,10:21(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/10/27,10:21 | 42.0 N | 142.5 E | 60 km | Mj 3.5 | S_OFF_URAKAWA |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
262 ; 167 | 82 ; 56 | -146 ; -9 | 2.82e+14 Nm | 56 km | Mw 3.6 | 74.26 |

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

Seismograms
retreive digital waveform data
Back
Earthquake Information 1998/10/24,09:23(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/10/24,09:23 | 34.2 N | 135.5 E | 70 km | Mj 3.7 | NE_WAKAYAMA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
336 ; 66 | 87 ; 82 | -8 ; -177 | 2.02e+14 Nm | 62 km | Mw 3.5 | 64.66 |

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

Seismograms
retreive digital waveform data
Back
Earthquake Information 1998/10/24,03:44(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/10/24,03:44 | 34.0 N | 137.3 E | 40 km | Mj 3.8 | ENSYUNADA |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
35 ; 143 | 63 ; 59 | -35 ; -148 | 2.76e+14 Nm | 17 km | Mw 3.6 | 70.64 |

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

Seismograms
retreive digital waveform data
Back
Earthquake Information 1998/10/23,17:12(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/10/23,17:12 | 41.3 N | 142.8 E | 20 km | Mj 3.7 | E_OFF_AOMORI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
293 ; 144 | 70 ; 23 | 79 ; 119 | 4.40e+14 Nm | 26 km | Mw 3.7 | 80.06 |

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

Seismograms
retreive digital waveform data
Back
Earthquake Information 1998/10/21,21:38(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/10/21,21:38 | 43.0 N | 146.9 E | 60 km | Mj 4.1 | E_OFF_HOKKAIDO |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
299 ; 97 | 68 ; 23 | -82 ; -109 | 5.14e+15 Nm | 35 km | Mw 4.4 | 81.31 |

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

Seismograms
retreive digital waveform data
Back
Earthquake Information 1998/10/21,07:36(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/10/21,07:36 | 38.0 N | 139.3 E | 10 km | Mj 4.0 | NE_NIIGATA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
21 ; 174 | 55 ; 38 | 106 ; 68 | 3.21e+14 Nm | 5 km | Mw 3.6 | 85.96 |

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

Seismograms
retreive digital waveform data
Back
Earthquake Information 1998/10/20,23:13(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/10/20,23:13 | 35.1 N | 141.6 E | 60 km | Mj 3.9 | E_OFF_BOSO_PENINSULA |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
268 ; 171 | 84 ; 40 | 50 ; 171 | 4.72e+15 Nm | 26 km | Mw 4.4 | 78.47 |

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

Seismograms
retreive digital waveform data
Back
Earthquake Information 1998/10/18,23:35(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/10/18,23:35 | 42.3 N | 143.0 E | 60 km | Mj 3.8 | HIDAKA_MOUNTAINS_REGION |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
49 ; 220 | 59 ; 31 | 94 ; 83 | 7.42e+14 Nm | 50 km | Mw 3.9 | 79.14 |

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

Seismograms
retreive digital waveform data
Back
Earthquake Information 1998/10/18,23:17(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/10/18,23:17 | 35.7 N | 139.3 E | 110 km | Mj 4.1 | TOKYO_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
115 ; 270 | 50 ; 43 | -73 ; -109 | 2.04e+15 Nm | 107 km | Mw 4.2 | 66.98 |

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

Seismograms
retreive digital waveform data
Back
Earthquake Information 1998/10/16,18:05(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/10/16,18:05 | 36.2 N | 137.6 E | 10 km | Mj 3.6 | HIDA_MOUNTAINS_REGION |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
107 ; 266 | 51 ; 41 | -76 ; -106 | 2.46e+14 Nm | 8 km | Mw 3.6 | 67.26 |

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

Seismograms
retreive digital waveform data
Back
Earthquake Information 1998/10/13,20:41(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/10/13,20:41 | 40.0 N | 143.6 E | shallow | Mj 5.7 | FAR_E_OFF_SANRIKU |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
23 ; 202 | 56 ; 34 | 91 ; 89 | 1.76e+17 Nm | 26 km | Mw 5.5 | 77.77 |

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

Seismograms
retreive digital waveform data
Back
Earthquake Information 1998/10/13,17:06(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/10/13,17:06 | 35.3 N | 141.2 E | 40 km | Mj 3.6 | E_OFF_BOSO_PENINSULA |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
67 ; 327 | 81 ; 43 | -132 ; -13 | 6.65e+14 Nm | 32 km | Mw 3.8 | 71.27 |

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

Seismograms
retreive digital waveform data
Back
Earthquake Information 1998/10/13,03:36(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/10/13,03:36 | 43.0 N | 145.4 E | 50 km | Mj 4.2 | OFF_NEMURO_PENINSULA |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
21 ; 241 | 63 ; 34 | 68 ; 125 | 9.24e+14 Nm | 50 km | Mw 3.9 | 74.67 |

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

Seismograms
retreive digital waveform data
Back
Earthquake Information 1998/10/12,12:30(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/10/12,12:30 | 32.7 N | 141.1 E | shallow | Mj 3.7 | E_OFF_HACHIJOJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
289 ; 199 | 90 ; 76 | 14 ; 180 | 3.01e+14 Nm | 29 km | Mw 3.6 | 55.24 |

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

Seismograms
retreive digital waveform data
Back
Earthquake Information 1998/10/10,12:10(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/10/10,12:10 | 39.4 N | 143.6 E | shallow | Mj 4.5 | FAR_E_OFF_SANRIKU |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
27 ; 200 | 58 ; 32 | 94 ; 84 | 4.77e+15 Nm | 23 km | Mw 4.4 | 91.13 |

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

Seismograms
retreive digital waveform data
Back
Earthquake Information 1998/10/10,11:49(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/10/10,11:49 | 39.4 N | 143.5 E | shallow | Mj 4.1 | FAR_E_OFF_SANRIKU |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
35 ; 195 | 59 ; 33 | 101 ; 73 | 1.32e+15 Nm | 17 km | Mw 4.0 | 86.41 |

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

Seismograms
retreive digital waveform data
Back
Earthquake Information 1998/10/06,23:09(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/10/06,23:09 | 41.7 N | 142.0 E | 70 km | Mj 3.9 | E_OFF_AOMORI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
95 ; 324 | 58 ; 44 | -122 ; -50 | 3.38e+14 Nm | 53 km | Mw 3.7 | 56.86 |

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

Seismograms
retreive digital waveform data
Back
Earthquake Information 1998/10/04,17:40(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/10/04,17:40 | 35.1 N | 138.2 E | 30 km | Mj 3.7 | CENTRAL_SHIZUOKA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
183 ; 50 | 81 ; 13 | -100 ; -44 | 1.07e+14 Nm | 23 km | Mw 3.3 | 88.21 |

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

Seismograms
retreive digital waveform data
Back
Earthquake Information 1998/10/03,17:01(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/10/03,17:01 | 36.7 N | 141.5 E | 40 km | Mj 4.8 | E_OFF_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
204 ; 79 | 79 ; 18 | -105 ; -37 | 4.93e+15 Nm | 35 km | Mw 4.4 | 80.45 |

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

Seismograms
retreive digital waveform data
Back
Earthquake Information 1998/10/03,00:37(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/10/03,00:37 | 37.4 N | 142.2 E | 40 km | Mj 4.1 | E_OFF_FUKUSHIMA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
244 ; 122 | 81 ; 16 | 76 ; 147 | 1.04e+15 Nm | 26 km | Mw 4.0 | 84.76 |

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

Seismograms
retreive digital waveform data
Back
Earthquake Information 1998/10/01,19:27(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/10/01,19:27 | 36.7 N | 141.3 E | 40 km | Mj 4.4 | E_OFF_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
209 ; 349 | 73 ; 22 | -76 ; -128 | 7.84e+14 Nm | 32 km | Mw 3.9 | 74.12 |

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

Seismograms
retreive digital waveform data
Back
Earthquake Information 1998/10/01,17:49(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1998/10/01,17:49 | 36.0 N | 142.4 E | 60 km | Mj 4.0 | FAR_E_OFF_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
152 ; 39 | 69 ; 45 | 50 ; 149 | 3.62e+15 Nm | 8 km | Mw 4.3 | 61.93 |

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

Seismograms
retreive digital waveform data
Back