This event was automatically detected and need to be confirmed by one of our analysts.
Type Event
Magnitude 5.1 mb
Local datetime 2025/12/21 15:58
Universal datetime 2025/12/21 06:58
Latitude 34.91 ° ± 6 km
Longitude 141.76 ° ± 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  202 8.336599e+06
Yokohama  205 3.574443e+06
Kawasaki  199 1.306785e+06
Shizuoka  308 701561
Hamamatsu  369 605098
Hachiōji  236 579399
Utsunomiya  250 449865
Iwaki  251 357309
Kōriyama  304 340560
Kawagoe  234 337931
Fukushima  335 294237
Maebashi  294 282711
Mito  199 246538
Matsumoto  374 210667
Kōfu  300 190000

Past seismicity

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

Event details

Parameters

Evaluation status
RMS 1.95
Azimuthal gap 132.54 °
Number of stations used 22
Number of phases used 22

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 06:59:42.7 -0.23 300.59 3.32 Automatic
II ERM P 07:00:32.72 -2.56 8.33 7.19 Automatic
IU YSS P 07:01:39.25 -2.9 3.27 12.07 Automatic
IU MA2 P 07:04:18.72 1.3 10.67 25.36 Automatic
IU YAK P 07:04:44.17 1.38 348 28.17 Automatic
IU ULN P 07:04:48.82 0.33 307.45 28.76 Automatic
IU BILL P 07:05:50.29 -1.09 15.4 35.99 Automatic
IU TIXI P 07:06:02.7 -0.88 353.34 37.35 Automatic
IU CHTO P 07:06:31.69 -2.57 258.33 41.06 Automatic
IU MAKZ P 07:07:12.72 1.39 304.12 45.6 Automatic
II KURK P 07:07:23.64 -1.43 309.82 47.35 Automatic
IU COLA P 07:07:51.62 1.87 31.18 50.58 Automatic
II AAK P 07:08:02.12 4.23 300.07 51.63 Automatic
II WRAB P 07:08:18.54 -3.14 188.47 55.29 Automatic
II ALE P 07:09:11.22 -0.19 3.46 61.98 Automatic
II KIV P 07:10:18.92 1.62 311.74 72.3 Automatic
IU KIEV P 07:10:36.57 -1.78 322.9 75.89 Automatic
II PFO P 07:11:03.4 3.05 55.93 79.79 Automatic
IU TUC P 07:11:24.2 -0.04 54.11 84.38 Automatic
IU ANMO P 07:11:30.4 0.29 49.77 85.51 Automatic
II BFO P 07:11:39.32 2.25 331.09 86.98 Automatic
IU CCM P 07:11:59.97 -0.91 39 92.05 Automatic