This event was automatically detected and need to be confirmed by one of our analysts.
Type Event
Magnitude 5.2 mb
Local datetime 2025/10/24 06:09
Universal datetime 2025/10/23 21:09
Latitude 37.36 ° ± 6 km
Longitude 141.87 ° ± 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
Tokyo  266 8.336599e+06
Sendai  127 1.037562e+06
Niigata  257 505272
Utsunomiya  200 449865
Iwaki  93 357309
Kōriyama  132 340560
Kawagoe  266 337931
Morioka  270 295172
Fukushima  131 294237
Maebashi  272 282711
Yamagata  170 254538
Mito  166 246538
Nagaoka  267 195318
Sakata  248 100446
Tsuruoka  233 99820

Past seismicity

  This map shows only the 0 most significant earthquakes around this event.

Event details

Parameters

Evaluation status
RMS 1.32
Azimuthal gap 131.97 °
Number of stations used 25
Number of phases used 25

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 21:10:15.69 3.24 255.57 3.04 Automatic
II ERM P 21:10:39.87 3.97 11.61 4.76 Automatic
IU YSS P 21:11:43.70 1.13 3.64 9.62 Automatic
IU YAK P 21:14:53.92 -1.52 346.85 25.8 Automatic
IU ULN P 21:15:10.47 0.08 303.67 27.4 Automatic
IU BILL P 21:16:03.62 -1.19 16.31 33.6 Automatic
IU TIXI P 21:16:14.77 -1.45 352.89 34.92 Automatic
IU MAKZ P 21:17:34.62 -0.62 302.08 44.33 Automatic
II KURK P 21:17:46.12 -1.4 308.03 45.88 Automatic
II KDAK P 21:17:52.17 0.09 42.02 46.46 Automatic
IU COLA P 21:18:08.7 0.62 32.28 48.44 Automatic
II AAK P 21:18:22.97 -0.46 298.37 50.51 Automatic
II WRAB P 21:19:13.22 0.25 188.36 57.73 Automatic
II ALE P 21:19:28.17 -0.5 3.56 59.53 Automatic
II KIV P 21:20:42.12 0.26 311.17 70.74 Automatic
II UOSS P 21:20:47.87 -0.88 287.99 71.92 Automatic
II FFC P 21:20:54.49 -0.74 32.83 72.96 Automatic
IU KIEV P 21:20:59.67 -1.68 322.55 73.99 Automatic
II PFO P 21:21:26.59 0.54 56.38 78.35 Automatic
IU ANTO P 21:21:30.64 0.54 312.37 79.07 Automatic
IU RSSD P 21:21:29.69 -0.46 41.87 79.08 Automatic
IU TUC P 21:21:51.17 0.87 54.39 82.87 Automatic
IU ANMO P 21:21:55.99 0.59 50.01 83.86 Automatic
II BFO P 21:22:00.2 -0.64 331.06 84.88 Automatic
IU CCM P 21:22:25.4 -0.67 39.04 90.09 Automatic