Data Report
Focal mechanisms / 200202
Contributed by NIED
Earthquake Information 2002/02/28,20:14(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/28,20:14 | 24.0 N | 122.7 E | 40 km | Mj 4.4 | NW_OFF_ISHIGAKIJIMA_IS |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
215 ; 308 | 85 ; 58 | -32 ; -174 | 4.06e+15 Nm | 20 km | Mw 4.4 | 82.30 |
Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region
Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/28,17:07(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/28,17:07 | 28.3 N | 129.5 E | 30 km | Mj 3.9 | NEAR_AMAMI-OSHIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
123 ; 238 | 76 ; 30 | -63 ; -152 | 2.15e+15 Nm | 41 km | Mw 4.2 | 72.54 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/26,14:04(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/26,14:04 | 35.1 N | 135.5 E | 10 km | Mj 3.7 | MID_KYOTO_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
226 ; 136 | 86 ; 84 | -174 ; -4 | 1.47e+14 Nm | 17 km | Mw 3.4 | 55.37 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/26,08:04(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/26,08:04 | 40.0 N | 143.2 E | 20 km | Mj 4.6 | FAR_E_OFF_SANRIKU |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
26 ; 180 | 70 ; 22 | 99 ; 66 | 3.66e+15 Nm | 23 km | Mw 4.3 | 94.61 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/25,19:12(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/25,19:12 | 26.0 N | 128.8 E | 30 km | Mj 3.5 | NEAR_OKINAWAJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
36 ; 237 | 55 ; 37 | 77 ; 107 | 2.95e+14 Nm | 11 km | Mw 3.6 | 63.21 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/25,16:17(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/25,16:17 | 25.9 N | 128.9 E | 30 km | Mj 4.0 | NEAR_OKINAWAJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
51 ; 214 | 51 ; 40 | 101 ; 76 | 1.55e+15 Nm | 20 km | Mw 4.1 | 71.61 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/25,16:15(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/25,16:15 | 26.0 N | 128.7 E | 40 km | Mj 4.0 | NEAR_OKINAWAJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
51 ; 221 | 54 ; 36 | 96 ; 82 | 2.47e+15 Nm | 11 km | Mw 4.2 | 77.51 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/25,15:52(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/25,15:52 | 26.0 N | 128.7 E | 50 km | Mj 3.8 | NEAR_OKINAWAJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
49 ; 205 | 54 ; 38 | 104 ; 71 | 1.53e+15 Nm | 14 km | Mw 4.1 | 75.93 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/25,15:46(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/25,15:46 | 26.0 N | 128.7 E | 40 km | Mj 3.5 | NEAR_OKINAWAJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
56 ; 194 | 53 ; 46 | 119 ; 58 | 3.65e+14 Nm | 17 km | Mw 3.7 | 83.97 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/25,13:14(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/25,13:14 | 36.4 N | 140.8 E | 80 km | Mj 4.7 | E_OFF_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
214 ; 336 | 59 ; 48 | -50 ; -137 | 9.02e+15 Nm | 83 km | Mw 4.6 | 96.19 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/24,22:29(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/24,22:29 | 25.6 N | 128.3 E | 60 km | Mj 4.0 | NEAR_OKINAWAJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
275 ; 29 | 58 ; 57 | -40 ; -141 | 4.80e+14 Nm | 41 km | Mw 3.8 | 63.63 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/24,20:44(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/24,20:44 | 33.8 N | 134.4 E | 10 km | Mj 3.7 | TOKUSHIMA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
319 ; 197 | 58 ; 50 | 49 ; 136 | 2.22e+14 Nm | 11 km | Mw 3.5 | 64.98 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/24,15:17(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/24,15:17 | 44.5 N | 149.8 E | 30 km | Mj 3.5 | SE_OFF_ETOROFU |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
229 ; 18 | 57 ; 37 | 108 ; 64 | 1.22e+15 Nm | 26 km | Mw 4.0 | 64.01 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/24,04:48(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/24,04:48 | 40.4 N | 145.6 E | 50 km | Mj 4.3 | FAR_E_OFF_NORTH_HONSHU |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
39 ; 237 | 61 ; 30 | -99 ; -74 | 1.56e+15 Nm | 5 km | Mw 4.1 | 69.60 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/24,03:28(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/24,03:28 | 35.7 N | 143.1 E | 70 km | Mj 4.4 | FAR_E_OFF_CENTRAL_HONSHU |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
208 ; 14 | 56 ; 35 | -82 ; -102 | 8.40e+15 Nm | 5 km | Mw 4.6 | 90.83 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/23,02:21(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/23,02:21 | 35.3 N | 140.2 E | 70 km | Mj 3.9 | SOUTHERN_BOSO_PENINSULA |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
207 ; 305 | 79 ; 53 | 142 ; 14 | 1.07e+15 Nm | 53 km | Mw 4.0 | 84.59 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/22,15:47(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/22,15:47 | 37.7 N | 142.2 E | 30 km | Mj 4.3 | SE_OFF_MIYAGI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
206 ; 42 | 75 ; 15 | 86 ; 105 | 1.04e+15 Nm | 35 km | Mw 4.0 | 86.08 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/21,22:34(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/21,22:34 | 33.8 N | 139.5 E | 20 km | Mj 4.3 | NEAR_MIYAKEJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
97 ; 353 | 65 ; 64 | -151 ; -28 | 1.78e+15 Nm | 5 km | Mw 4.1 | 65.26 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/21,06:14(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/21,06:14 | 36.0 N | 139.9 E | 40 km | Mj 3.6 | SW_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
50 ; 226 | 77 ; 13 | 91 ; 86 | 3.57e+14 Nm | 56 km | Mw 3.7 | 80.85 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/21,00:16(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/21,00:16 | 36.6 N | 141.1 E | 40 km | Mj 3.7 | E_OFF_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
16 ; 137 | 81 ; 16 | 104 ; 32 | 4.50e+14 Nm | 44 km | Mw 3.7 | 89.61 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/20,23:34(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/20,23:34 | 33.7 N | 142.2 E | 60 km | Mj 3.6 | FAR_E_OFF_IZU_ISLANDS |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
126 ; 340 | 64 ; 30 | -107 ; -59 | 1.40e+15 Nm | 5 km | Mw 4.1 | 86.63 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/18,15:05(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/18,15:05 | 33.9 N | 135.1 E | 10 km | Mj 3.6 | CENTRAL_WAKAYAMA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
60 ; 156 | 77 ; 66 | 156 ; 14 | 8.83e+13 Nm | 8 km | Mw 3.3 | 54.94 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/18,01:59(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/18,01:59 | 36.7 N | 141.3 E | 40 km | Mj 3.9 | E_OFF_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
14 ; 201 | 87 ; 3 | 90 ; 97 | 6.44e+14 Nm | 35 km | Mw 3.8 | 60.05 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/17,01:57(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/17,01:57 | 24.2 N | 125.2 E | 20 km | Mj 3.9 | NEAR_MIYAKOJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
233 ; 112 | 67 ; 39 | 58 ; 142 | 5.48e+14 Nm | 17 km | Mw 3.8 | 95.39 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/16,13:46(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/16,13:46 | 42.2 N | 142.5 E | 20 km | Mj 3.7 | S_OFF_URAKAWA |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
127 ; 277 | 63 ; 31 | 105 ; 64 | 5.43e+14 Nm | 20 km | Mw 3.8 | 80.03 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/15,06:14(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/15,06:14 | 25.7 N | 125.2 E | 20 km | Mj 3.9 | NW_OFF_MIYAKOJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
86 ; 283 | 70 ; 21 | -96 ; -74 | 2.11e+15 Nm | 5 km | Mw 4.2 | 88.51 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/14,01:12(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/14,01:12 | 41.5 N | 142.1 E | 60 km | Mj 5.2 | E_OFF_AOMORI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
24 ; 176 | 75 ; 17 | 98 ; 63 | 1.52e+17 Nm | 56 km | Mw 5.4 | 95.36 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/13,13:19(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/13,13:19 | 23.7 N | 122.1 E | 80 km | Mj 3.5 | TAIWAN_REGION |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
250 ; 128 | 84 ; 11 | -99 ; -33 | 4.98e+15 Nm | 53 km | Mw 4.4 | 75.12 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/13,09:54(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/13,09:54 | 38.8 N | 141.1 E | 10 km | Mj 4.3 | NORTHERN_MIYAGI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
237 ; 86 | 68 ; 25 | 78 ; 117 | 6.94e+14 Nm | 5 km | Mw 3.9 | 89.39 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/13,04:29(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/13,04:29 | 33.5 N | 141.0 E | 50 km | Mj 3.6 | E_OFF_HACHIJOJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
179 ; 358 | 69 ; 21 | 90 ; 89 | 5.08e+14 Nm | 53 km | Mw 3.8 | 51.16 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/12,20:54(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/12,20:54 | 27.2 N | 129.6 E | 10 km | Mj 4.4 | NEAR_AMAMI-OSHIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
41 ; 210 | 55 ; 36 | 97 ; 81 | 1.33e+16 Nm | 17 km | Mw 4.7 | 69.89 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/12,13:44(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/12,13:44 | 36.6 N | 141.0 E | 40 km | Mj 5.5 | E_OFF_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
26 ; 217 | 71 ; 19 | 86 ; 100 | 1.94e+17 Nm | 44 km | Mw 5.5 | 95.14 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/12,03:27(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/12,03:27 | 23.9 N | 121.7 E | 90 km | Mj 5.7 | TAIWAN_REGION |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
33 ; 251 | 49 ; 47 | 63 ; 118 | 4.72e+17 Nm | 50 km | Mw 5.7 | 76.88 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/11,10:14(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/11,10:14 | 28.6 N | 130.0 E | 70 km | Mj 3.9 | NEAR_AMAMI-OSHIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
221 ; 326 | 83 ; 25 | -66 ; -163 | 4.62e+15 Nm | 32 km | Mw 4.4 | 59.66 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/11,01:10(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/11,01:10 | 35.8 N | 141.2 E | 50 km | Mj 5.2 | NEAR_CHOSHI_CITY |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
329 ; 189 | 75 ; 20 | 77 ; 128 | 7.49e+16 Nm | 35 km | Mw 5.2 | 87.07 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/11,00:08(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/11,00:08 | 28.0 N | 128.8 E | 40 km | Mj 3.6 | NEAR_AMAMI-OSHIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
74 ; 171 | 83 ; 43 | 133 ; 10 | 8.46e+15 Nm | 59 km | Mw 4.6 | 75.35 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/10,19:08(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/10,19:08 | 35.6 N | 140.8 E | 70 km | Mj 4.1 | NEAR_CHOSHI_CITY |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
244 ; 126 | 61 ; 50 | -133 ; -39 | 2.02e+15 Nm | 59 km | Mw 4.2 | 90.65 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 2002/02/10,05:08(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/10,05:08 | 37.3 N | 141.8 E | 40 km | Mj 4.0 | E_OFF_FUKUSHIMA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
6 ; 226 | 68 ; 28 | 72 ; 126 | 2.98e+14 Nm | 41 km | Mw 3.6 | 63.04 |

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

Seismograms
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Earthquake Information 2002/02/09,16:56(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/09,16:56 | 45.9 N | 142.8 E | 350 km | Mj 5.7 | SOUTH_SAKHALIN |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
173 ; 36 | 72 ; 24 | 73 ; 131 | 1.85e+17 Nm | 360 km | Mw 5.5 | 94.25 |

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Earthquake Information 2002/02/07,21:31(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/07,21:31 | 26.4 N | 128.8 E | 20 km | Mj 3.5 | NEAR_OKINAWAJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
45 ; 210 | 70 ; 21 | 95 ; 76 | 4.42e+14 Nm | 20 km | Mw 3.7 | 82.01 |

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past earthquakes occurring in this region

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Earthquake Information 2002/02/07,13:34(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/07,13:34 | 39.8 N | 143.7 E | 20 km | Mj 4.6 | FAR_E_OFF_SANRIKU |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
38 ; 186 | 67 ; 27 | 104 ; 61 | 1.29e+16 Nm | 17 km | Mw 4.7 | 91.72 |

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past earthquakes occurring in this region

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Earthquake Information 2002/02/07,10:11(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/07,10:11 | 25.9 N | 125.6 E | 10 km | Mj 3.7 | NW_OFF_MIYAKOJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
233 ; 128 | 76 ; 43 | -131 ; -20 | 1.43e+14 Nm | 5 km | Mw 3.4 | 51.04 |

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past earthquakes occurring in this region

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Earthquake Information 2002/02/06,22:17(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/06,22:17 | 43.0 N | 147.0 E | 60 km | Mj 3.9 | E_OFF_HOKKAIDO |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
63 ; 192 | 58 ; 45 | 124 ; 49 | 6.06e+14 Nm | 32 km | Mw 3.8 | 70.89 |

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past earthquakes occurring in this region

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Earthquake Information 2002/02/05,10:57(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/05,10:57 | 36.3 N | 140.0 E | 70 km | Mj 4.4 | SW_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
338 ; 194 | 60 ; 35 | 70 ; 121 | 6.69e+15 Nm | 71 km | Mw 4.5 | 97.03 |

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past earthquakes occurring in this region

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Earthquake Information 2002/02/03,21:02(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/03,21:02 | 33.6 N | 135.2 E | 40 km | Mj 4.8 | S_PART_OF_KII_CHANNEL |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
187 ; 95 | 89 ; 30 | 60 ; 178 | 2.83e+15 Nm | 38 km | Mw 4.3 | 97.78 |

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past earthquakes occurring in this region

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Earthquake Information 2002/02/03,18:16(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/03,18:16 | 38.3 N | 141.9 E | 50 km | Mj 4.2 | E_OFF_MIYAGI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
32 ; 184 | 64 ; 29 | 103 ; 66 | 2.43e+14 Nm | 53 km | Mw 3.6 | 62.32 |

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past earthquakes occurring in this region

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Earthquake Information 2002/02/03,15:15(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/03,15:15 | 37.3 N | 141.9 E | 40 km | Mj 4.6 | E_OFF_FUKUSHIMA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
81 ; 221 | 78 ; 15 | 100 ; 51 | 3.91e+15 Nm | 38 km | Mw 4.4 | 96.87 |

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past earthquakes occurring in this region

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Earthquake Information 2002/02/02,20:03(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/02,20:03 | 35.8 N | 140.5 E | 50 km | Mj 3.8 | NORTHERN_CHIBA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
119 ; 20 | 70 ; 66 | -154 ; -22 | 1.13e+15 Nm | 38 km | Mw 4.0 | 74.18 |

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past earthquakes occurring in this region

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Earthquake Information 2002/02/02,16:16(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/02,16:16 | 37.3 N | 141.2 E | 80 km | Mj 4.2 | E_OFF_FUKUSHIMA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
217 ; 38 | 60 ; 30 | -90 ; -89 | 3.68e+14 Nm | 74 km | Mw 3.7 | 55.64 |

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past earthquakes occurring in this region

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Earthquake Information 2002/02/01,21:55(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/01,21:55 | 45.3 N | 136.8 E | 410 km | Mj 6.0 | NEAR_VLADIVOSTOK |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
88 ; 326 | 75 ; 27 | -113 ; -35 | 6.75e+17 Nm | 400 km | Mw 5.9 | 93.13 |

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past earthquakes occurring in this region

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Earthquake Information 2002/02/01,20:09(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/01,20:09 | 37.4 N | 139.0 E | 10 km | Mj 4.0 | MID_NIIGATA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
227 ; 40 | 80 ; 11 | 91 ; 84 | 7.66e+14 Nm | 8 km | Mw 3.9 | 86.38 |

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past earthquakes occurring in this region

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Earthquake Information 2002/02/01,13:50(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
2002/02/01,13:50 | 34.5 N | 141.9 E | 30 km | Mj 3.6 | FAR_SE_OFF_BOSO_PEN |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
357 ; 231 | 53 ; 52 | 50 ; 130 | 9.62e+14 Nm | 14 km | Mw 4.0 | 61.88 |

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

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