This event was automatically detected and need to be confirmed by one of our analysts.
Type Event
Magnitude 5.2 mb
Local datetime 2025/08/21 07:24
Universal datetime 2025/08/20 21:24
Latitude 43.42 ° ± 5 km
Longitude 147.43 ° ± 6 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  496 1.883027e+06
Asahikawa  409 356612
Hakodate  577 275730
Hachinohe  585 239046
Kushiro  253 183612
Yuzhno Sakhalinsk  539 176484
Tomakomai  486 174806
Obihiro  350 173890
Otaru  524 143792
Kitami  289 113137
Muroran  540 96197
Korsakov  512 35091
Kholmsk  583 32681
Nevelsk  568 17000
Dolinsk  567 11989

Past seismicity

  This map shows the most significant earthquake around this event.

Event details

Parameters

Evaluation status
RMS 1.77
Azimuthal gap 146.67 °
Number of stations used 19
Number of phases used 19

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
IU MAJO P 21:27:15.64 2.4 228.85 9.85 Automatic
IU MA2 P 21:28:42.47 2.04 6.04 16.28 Automatic
IU YAK P 21:29:35.42 -3.51 336.86 21.33 Automatic
IU BILL P 21:30:31.57 1.24 15.78 26.61 Automatic
IU ULN P 21:30:46.62 1.21 293.32 28.24 Automatic
IU TIXI P 21:30:53.87 -3.44 348.29 29.63 Automatic
II KDAK P 21:32:20.24 -0.12 46.95 39.18 Automatic
IU COLA P 21:32:37.17 1.24 35.77 41.06 Automatic
IU DAV P 21:32:30.52 -3.97 214.19 41.09 Automatic
IU MAKZ P 21:33:08.19 0.52 298.22 44.96 Automatic
II KURK P 21:33:13.64 -0.06 304.44 45.71 Automatic
II AAK P 21:33:59.42 1.03 296.04 51.51 Automatic
II WRAB P 21:35:26.14 -0.08 193.62 64.48 Automatic
II OBN P 21:35:35.49 -0.38 324.01 65.42 Automatic
II KIV P 21:36:05.37 1.37 312.15 69.88 Automatic
IU KIEV P 21:36:14.22 -0.78 323.98 71.67 Automatic
IU RSSD P 21:36:15.69 0.12 45.77 71.78 Automatic
IU ANTO P 21:36:52.42 0.92 314.5 77.98 Automatic
II BFO P 21:37:10.72 0.24 333.88 81.46 Automatic