Data Report
Focal mechanisms / 199712
Contributed by NIED
Earthquake Information 1997/12/31,22:27(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/31,22:27 | 34.1 N | 135.2 E | 10 km | Mj 3.8 | NW_WAKAYAMA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
14 ; 155 | 57 ; 40 | 114 ; 58 | 2.32e+14 Nm | 5 km | Mw 3.5 | 66.07 |
Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region
Seismograms
retreive digital waveform data
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Earthquake Information 1997/12/31,01:16(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/31,01:16 | 43.3 N | 146.7 E | 60 km | Mj 4.4 | OFF_NEMURO_PENINSULA |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
283 ; 19 | 83 ; 48 | 138 ; 10 | 1.49e+17 Nm | 98 km | Mw 5.4 | 80.18 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/12/29,16:11(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/29,16:11 | 35.7 N | 140.8 E | 50 km | Mj 3.7 | NEAR_CHOSHI_CITY |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
345 ; 160 | 66 ; 24 | 92 ; 85 | 1.40e+15 Nm | 47 km | Mw 4.1 | 89.99 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/12/29,00:13(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/29,00:13 | 42.8 N | 145.5 E | 50 km | Mj 4.2 | OFF_NEMURO_PENINSULA |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
241 ; 149 | 85 ; 71 | -161 ; -5 | 1.02e+15 Nm | 53 km | Mw 4.0 | 81.09 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/12/28,23:31(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/28,23:31 | 36.1 N | 138.6 E | 160 km | Mj 3.7 | EASTERN_NAGANO_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
9 ; 100 | 88 ; 42 | -48 ; -177 | 1.06e+15 Nm | 190 km | Mw 4.0 | 89.86 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/12/28,05:13(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/28,05:13 | 40.6 N | 144.0 E | shallow | Mj 4.0 | FAR_E_OFF_SANRIKU |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
35 ; 197 | 56 ; 36 | 101 ; 75 | 1.00e+16 Nm | 8 km | Mw 4.6 | 51.93 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/12/27,01:08(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/27,01:08 | 34.1 N | 135.1 E | 10 km | Mj 3.8 | NW_WAKAYAMA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
338 ; 196 | 52 ; 44 | 64 ; 119 | 5.03e+14 Nm | 8 km | Mw 3.8 | 91.73 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/12/26,17:29(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/26,17:29 | 40.6 N | 144.1 E | shallow | Mj 3.8 | FAR_E_OFF_SANRIKU |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
30 ; 185 | 56 ; 37 | 105 ; 69 | 3.18e+15 Nm | 11 km | Mw 4.3 | 76.24 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/12/26,04:26(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/26,04:26 | 33.2 N | 132.2 E | 50 km | Mj 3.9 | BUNGO_CHANNEL |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
63 ; 324 | 72 ; 64 | 28 ; 160 | 4.08e+14 Nm | 41 km | Mw 3.7 | 85.77 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/12/24,15:17(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/24,15:17 | 31.8 N | 130.3 E | 10 km | Mj 3.9 | NW_KAGOSHIMA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
290 ; 197 | 80 ; 75 | 15 ; 169 | 9.89e+14 Nm | 11 km | Mw 4.0 | 96.77 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/12/24,12:31(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/24,12:31 | 34.8 N | 140.1 E | 60 km | Mj 3.8 | SE_OFF_BOSO_PENINSULA |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
27 ; 287 | 82 ; 41 | 49 ; 168 | 1.72e+14 Nm | 50 km | Mw 3.5 | 74.06 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/12/24,11:30(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/24,11:30 | 31.1 N | 127.9 E | 40 km | Mj 4.1 | EAST_CHINA_SEA_REGION |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
227 ; 133 | 87 ; 41 | -131 ; -5 | 4.96e+15 Nm | 14 km | Mw 4.4 | 88.62 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/12/24,08:08(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/24,08:08 | 43.6 N | 147.3 E | 30 km | Mj 3.9 | E_OFF_HOKKAIDO |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
114 ; 220 | 73 ; 47 | 134 ; 24 | 5.98e+14 Nm | 35 km | Mw 3.8 | 71.64 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/12/23,11:08(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/23,11:08 | 41.0 N | 139.3 E | 40 km | Mj 4.3 | W_OFF_AOMORI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
2 ; 270 | 89 ; 31 | -121 ; -2 | 7.38e+14 Nm | 17 km | Mw 3.9 | 91.48 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/12/23,06:18(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/23,06:18 | 36.2 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 |
340 ; 232 | 77 ; 36 | 56 ; 158 | 3.32e+15 Nm | 38 km | Mw 4.3 | 89.43 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/12/22,19:08(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/22,19:08 | 43.0 N | 143.5 E | 110 km | Mj 5.1 | TOKACHI_REGION |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
290 ; 25 | 87 ; 28 | -62 ; -175 | 4.62e+16 Nm | 113 km | Mw 5.1 | 77.23 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/12/22,16:31(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/22,16:31 | 40.2 N | 142.5 E | 40 km | Mj 5.1 | NE_OFF_IWATE_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
22 ; 191 | 70 ; 20 | 94 ; 81 | 1.19e+17 Nm | 47 km | Mw 5.3 | 91.30 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/12/21,21:03(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/21,21:03 | 43.1 N | 146.4 E | 50 km | Mj 5.0 | OFF_NEMURO_PENINSULA |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
326 ; 134 | 46 ; 45 | -81 ; -99 | 5.46e+16 Nm | 44 km | Mw 5.1 | 70.49 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/12/19,13:07(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/19,13:07 | 36.3 N | 136.2 E | 10 km | Mj 4.4 | CENTRAL_FUKUI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
202 ; 55 | 58 ; 36 | 71 ; 118 | 3.22e+15 Nm | 8 km | Mw 4.3 | 86.56 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/12/16,11:34(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/16,11:34 | 40.5 N | 140.0 E | 180 km | Mj 3.9 | WESTERN_AOMORI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
148 ; 250 | 66 ; 65 | -28 ; -153 | 3.39e+15 Nm | 165 km | Mw 4.3 | 83.86 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/12/13,06:45(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/13,06:45 | 39.6 N | 142.4 E | 80 km | Mj 4.6 | E_OFF_IWATE_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
254 ; 101 | 65 ; 28 | -102 ; -65 | 8.77e+15 Nm | 71 km | Mw 4.6 | 85.23 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/12/09,19:21(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/09,19:21 | 36.5 N | 141.1 E | 40 km | Mj 4.0 | E_OFF_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
88 ; 198 | 74 ; 39 | 127 ; 25 | 3.51e+15 Nm | 44 km | Mw 4.3 | 88.70 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/12/09,06:49(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/09,06:49 | 37.7 N | 141.1 E | 70 km | Mj 4.0 | E_OFF_FUKUSHIMA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
131 ; 222 | 88 ; 64 | 154 ; 2 | 4.67e+14 Nm | 65 km | Mw 3.7 | 51.38 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/12/07,03:50(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/07,03:50 | 37.7 N | 141.8 E | 80 km | Mj 5.3 | E_OFF_FUKUSHIMA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
192 ; 21 | 50 ; 40 | -96 ; -83 | 1.25e+17 Nm | 83 km | Mw 5.4 | 89.18 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/12/06,23:02(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/06,23:02 | 35.7 N | 140.1 E | 50 km | Mj 4.2 | NORTHERN_CHIBA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
16 ; 265 | 69 ; 46 | -133 ; -29 | 1.95e+15 Nm | 32 km | Mw 4.2 | 87.33 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/12/06,06:40(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/06,06:40 | 35.7 N | 140.1 E | 60 km | Mj 4.6 | NORTHERN_CHIBA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
269 ; 10 | 68 ; 64 | -29 ; -155 | 1.31e+16 Nm | 32 km | Mw 4.7 | 89.42 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/12/05,23:57(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/05,23:57 | 34.3 N | 139.1 E | 10 km | Mj 3.6 | NEAR_NIIJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
310 ; 42 | 86 ; 59 | 149 ; 4 | 7.78e+14 Nm | 11 km | Mw 3.9 | 82.19 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/12/02,18:47(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/02,18:47 | 40.0 N | 138.9 E | 40 km | Mj 4.2 | W_OFF_AKITA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
216 ; 39 | 56 ; 34 | 88 ; 93 | 9.25e+14 Nm | 8 km | Mw 3.9 | 66.08 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/12/02,05:18(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/02,05:18 | 34.0 N | 136.4 E | 380 km | Mj 4.7 | SE_OFF_KII_PENINSULA |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
205 ; 110 | 88 ; 19 | 71 ; 175 | 8.57e+15 Nm | 400 km | Mw 4.6 | 58.70 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/12/01,18:17(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/12/01,18:17 | 40.0 N | 138.9 E | 40 km | Mj 4.8 | W_OFF_AKITA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
50 ; 178 | 67 ; 35 | 117 ; 43 | 1.26e+16 Nm | 8 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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