Data Report
Focal mechanisms / 199708
Contributed by NIED
Earthquake Information 1997/08/29,11:23(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/08/29,11:23 | 34.2 N | 139.2 E | 10 km | Mj 4.1 | NEAR_NIIJIMA_ISLAND |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
355 ; 198 | 56 ; 36 | -104 ; -71 | 6.69e+15 Nm | 5 km | Mw 4.5 | 74.84 |
Mechanism(Solid line:observation, Dotted line:Synthetics)
past earthquakes occurring in this region
Seismograms
retreive digital waveform data
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Earthquake Information 1997/08/28,22:48(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/08/28,22:48 | 34.9 N | 139.4 E | 20 km | Mj 3.8 | SAGAMINADA |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
211 ; 115 | 82 ; 51 | 40 ; 170 | 1.57e+14 Nm | 8 km | Mw 3.4 | 61.65 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/08/24,10:40(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/08/24,10:40 | 31.4 N | 131.5 E | 50 km | Mj 3.5 | SE_OFF_OSUMI_PEN |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
331 ; 74 | 65 ; 64 | 151 ; 28 | 4.58e+14 Nm | 32 km | Mw 3.7 | 84.68 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/08/22,10:43(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/08/22,10:43 | 33.4 N | 131.8 E | 90 km | Mj 3.7 | IYONADA_SETONAIKAI |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
271 ; 48 | 68 ; 30 | 110 ; 51 | 7.75e+14 Nm | 80 km | Mw 3.9 | 78.27 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/08/22,08:11(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/08/22,08:11 | 36.2 N | 140.1 E | 70 km | Mj 4.1 | SW_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
360 ; 175 | 62 ; 28 | 92 ; 85 | 4.39e+15 Nm | 62 km | Mw 4.4 | 94.53 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/08/21,20:01(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/08/21,20:01 | 36.4 N | 140.6 E | 50 km | Mj 4.0 | NORTHERN_IBARAKI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
45 ; 144 | 88 ; 13 | 103 ; 10 | 8.73e+14 Nm | 50 km | Mw 3.9 | 85.22 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/08/20,20:54(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/08/20,20:54 | 35.0 N | 139.1 E | 10 km | Mj 3.6 | E_OFF_IZU_PENINSULA |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
5 ; 97 | 82 ; 76 | -14 ; -171 | 2.78e+14 Nm | 8 km | Mw 3.6 | 82.47 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/08/15,01:29(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/08/15,01:29 | 33.5 N | 132.4 E | 50 km | Mj 3.9 | IYONADA_SETONAIKAI |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
269 ; 71 | 72 ; 19 | -84 ; -107 | 7.76e+14 Nm | 35 km | Mw 3.9 | 72.23 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/08/08,20:34(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/08/08,20:34 | 35.9 N | 139.5 E | 70 km | Mj 5.1 | EASTERN_SAITAMA_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
267 ; 42 | 74 ; 22 | 106 ; 47 | 3.36e+16 Nm | 65 km | Mw 5.0 | 89.69 |

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

Seismograms
retreive digital waveform data
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Earthquake Information 1997/08/04,13:04(UT)
Earthquake Mechanism Information
Hypocenter Information Provided by JMA
Origin Time(UT) | Latitude | Longitude | Depth | Magnitude | Region |
1997/08/04,13:04 | 36.4 N | 140.0 E | 70 km | Mj 3.9 | SOUTHERN_TOCHIGI_PREF |
Focal Mechanism Solution Determined Manually
Strike | Dip | Rake | Mo | Depth | Magnitude | VarRed |
3 ; 191 | 65 ; 25 | 87 ; 97 | 4.23e+14 Nm | 77 km | Mw 3.7 | 80.07 |

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

Seismograms
retreive digital waveform data
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