This event was automatically detected and need to be confirmed by one of our analysts.
Type Event
Magnitude 5.1 mb
Local datetime 2025/12/09 02:58
Universal datetime 2025/12/08 17:58
Latitude 41.10 ° ± 9 km
Longitude 143.00 ° ± 15 km
Depth 10 km (from location) ± 0.0 km

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See the seismogram of this event.

Near cities

This table shows only the most populated cities around the epicenter.
Name Distance (km) Population
Sapporo  259 1.883027e+06
Sendai  355 1.037562e+06
Asahikawa  300 356612
Akita  291 320069
Aomori  195 298394
Morioka  220 295172
Hakodate  204 275730
Hachinohe  139 239046
Kushiro  238 183612
Hirosaki  221 174972
Tomakomai  210 174806
Obihiro  204 173890
Otaru  286 143792
Kitami  315 113137
Muroran  218 96197

Past seismicity

  This map shows only the 2 most significant earthquakes around this event.

Event details

Parameters

Evaluation status
RMS 1.43
Azimuthal gap 203.5 °
Number of stations used 10
Number of phases used 10

Webservices

The data of this event are available in various formats (QuakeML, GeoJSON and text) through the following links :

QuakeML GeoJSON Text

Phases

Network Station Phase Time Residual (s) Azimuth (°) Distance (°) Mode
II ERM P 17:58:44.72 2.23 7.17 0.93 Automatic
IU MAJO P 17:59:52.74 0.78 220.93 5.89 Automatic
IU YAK P 18:03:20.42 -3.09 343.53 22.41 Automatic
IU ULN P 18:04:02.47 1.78 297.14 26.27 Automatic
IU BILL P 18:04:31.32 -0.37 17.42 29.77 Automatic
IU CHTO P 18:06:28.62 -0.26 252.77 43.56 Automatic
II KURK P 18:06:35.27 -0.64 305.24 44.35 Automatic
II KIV P 18:09:32.27 0.89 310.64 68.95 Automatic
IU KIEV P 18:09:46.77 -0.67 322.34 71.56 Automatic
II UOSS P 18:09:46.74 -0.63 287.45 71.61 Automatic