This event was automatically detected and need to be confirmed by one of our analysts.
Type Event
Magnitude 5.3 mb
Local datetime 2025/11/21 21:22
Universal datetime 2025/11/21 12:22
Latitude 39.77 ° ± 4 km
Longitude 143.43 ° ± 5 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
Sendai  265 1.037562e+06
Akita  286 320069
Aomori  259 298394
Morioka  197 295172
Fukushima  342 294237
Hakodate  320 275730
Yamagata  316 254538
Hachinohe  181 239046
Kushiro  365 183612
Hirosaki  267 174972
Tomakomai  357 174806
Obihiro  352 173890
Sakata  322 100446
Tsuruoka  332 99820
Muroran  353 96197

Past seismicity

  This map shows the most significant earthquake around this event.

Event details

Parameters

Evaluation status
RMS 1.39
Azimuthal gap 134.27 °
Number of stations used 32
Number of phases used 32

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 12:22:43.7 -0.18 354.88 2.26 Automatic
IU MAJO P 12:23:22.92 -1.18 233.52 5.22 Automatic
IU YSS P 12:23:52.30 1.07 356.36 7.21 Automatic
IU INCN P 12:25:19.27 3.99 265.44 13.31 Automatic
IU MA2 P 12:26:42.37 0.02 10.73 20.34 Automatic
IU ULN P 12:27:50.2 -0.16 299.43 27.18 Automatic
II TLY P 12:28:13.29 0.15 306.93 29.76 Automatic
IU BILL P 12:28:21.72 -1.58 16.51 30.95 Automatic
IU TIXI P 12:28:37.29 -1.39 351.57 32.7 Automatic
IU CHTO P 12:30:08.39 -1.27 254.49 43.5 Automatic
IU MAKZ P 12:30:14.4 -1.32 300.29 44.13 Automatic
II KURK P 12:30:23.97 -1.47 306.41 45.39 Automatic
II KAPI P 12:30:59.7 1.6 211.58 49.81 Automatic
II AAK P 12:31:04.17 -0.69 297.11 50.46 Automatic
II ALE P 12:31:52.52 -0.53 3.88 57.05 Automatic
IU KBS P 12:32:01.14 1.32 350.22 58 Automatic
II WRAB P 12:32:10.69 -1.85 189.82 60.3 Automatic
II PALK P 12:32:43.22 0.11 257.62 64.51 Automatic
II OBN P 12:32:57.77 0.05 323.39 66.6 Automatic
II KIV P 12:33:20.7 0.55 311.21 70.07 Automatic
IU GNI P 12:33:27.67 1.81 307 71.11 Automatic
II UOSS P 12:33:31.42 -1.51 288.1 72.33 Automatic
IU SFJD P 12:33:35.57 0.12 5.7 72.7 Automatic
IU KIEV P 12:33:34.57 -1.6 322.79 72.82 Automatic
IU RSSD P 12:33:56.94 -0.46 43 76.48 Automatic
IU ANTO P 12:34:07.92 0.11 312.83 78.34 Automatic
IU TUC P 12:34:21.77 2.31 55.55 80.49 Automatic
IU ANMO P 12:34:24.82 0.54 51.12 81.39 Automatic
II BFO P 12:34:34.42 -0.2 331.8 83.34 Automatic
IU CCM P 12:34:53.82 -1.21 40.02 87.46 Automatic
IU WCI P 12:35:08.59 3.03 36.82 89.69 Automatic
IU WVT P 12:35:09.84 -0.2 39.05 90.65 Automatic