This event was automatically detected and need to be confirmed by one of our analysts.
Type Event
Magnitude 5.4 mb
Local datetime 2025/05/23 06:27
Universal datetime 2025/05/22 21:27
Latitude 42.11 ° ± 4 km
Longitude 142.41 ° ± 4 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  139 1.883027e+06
Asahikawa  183 356612
Akita  330 320069
Aomori  201 298394
Morioka  286 295172
Hakodate  142 275730
Hachinohe  191 239046
Kushiro  188 183612
Hirosaki  235 174972
Tomakomai  93 174806
Obihiro  111 173890
Otaru  168 143792
Kitami  229 113137
Sakata  415 100446
Muroran  121 96197

Past seismicity

  This map shows the most significant earthquake around this event.

Event details

Parameters

Evaluation status
RMS 1.21
Azimuthal gap 89.55 °
Number of stations used 31
Number of phases used 31

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 21:28:10.67 2.34 98.99 0.56 Automatic
IU MAJO P 21:29:33.9 1.53 211.67 6.44 Automatic
IU MA2 P 21:32:10.12 0.46 13.63 18.22 Automatic
IU YAK P 21:32:42.32 -1.55 343.49 21.32 Automatic
IU TATO P 21:33:13.22 -1.13 231.8 24.31 Automatic
IU ULN P 21:33:26.37 1.26 295.28 25.42 Automatic
II TLY P 21:33:47.79 1.42 303.6 27.78 Automatic
IU BILL P 21:33:55.44 -1.04 18.33 28.95 Automatic
IU TIXI P 21:34:05.97 -2.24 351.59 30.28 Automatic
IU MAKZ P 21:35:52.4 0.49 297.84 42.32 Automatic
II KURK P 21:36:00.72 0.3 304.25 43.41 Automatic
IU CHTO P 21:35:59.97 -0.04 251.22 43.45 Automatic
IU COLA P 21:36:07.27 0.1 34.8 44.26 Automatic
II AAK P 21:36:43.2 0.46 294.95 48.75 Automatic
II KAPI P 21:36:59.44 -1.05 209.39 51.43 Automatic
II ALE P 21:37:27.37 -0.19 3.84 54.77 Automatic
IU KEV P 21:37:57.57 1.64 338.55 58.74 Automatic
II WRAB P 21:38:14.77 -3.38 188.53 62.48 Automatic
II OBN P 21:38:33.69 0.22 322.35 64.27 Automatic
II KIV P 21:38:58.17 0.93 310.05 67.96 Automatic
II FFC P 21:39:01.64 -0.7 33.96 68.77 Automatic
IU GNI P 21:39:06.27 1.91 305.82 69.1 Automatic
IU KIEV P 21:39:12.17 -0.85 321.85 70.5 Automatic
II UOSS P 21:39:14.79 -0.26 286.77 70.89 Automatic
II PFO P 21:39:42.9 0.03 57.6 75.42 Automatic
IU ANTO P 21:39:47.9 0.49 311.88 76.19 Automatic
IU TUC P 21:40:06.59 0.04 55.29 79.8 Automatic
IU ANMO P 21:40:10.49 0.03 50.82 80.52 Automatic
II BFO P 21:40:12.62 -0.17 331.07 80.92 Automatic
IU CCM P 21:40:38.7 -1.47 39.47 86.15 Automatic
IU SSPA P 21:40:56.39 0.43 29.39 89.59 Automatic