This event was automatically detected and need to be confirmed by one of our analysts.
Type Event
Magnitude 5.2 mb
Local datetime 2021/12/22 01:42
Universal datetime 2021/12/21 16:42
Latitude 31.24 ° ± 4 km
Longitude 142.28 ° ± 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  547 8.336599e+06
Yokohama  528 3.574443e+06
Nagoya  663 2.191279e+06
Kawasaki  533 1.306785e+06
Shizuoka  552 701561
Hamamatsu  574 605098
Hachiōji  562 579399
Utsunomiya  630 449865
Iwaki  658 357309
Kawagoe  580 337931
Maebashi  644 282711
Mito  593 246538
Matsumoto  683 210667
Kōfu  598 190000
Tsu  662 163461

Past seismicity

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

Event details

Parameters

Evaluation status
RMS 1.23
Azimuthal gap 116.07 °
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
IU MAJO P 16:44:15.32 0.51 328.62 6.29 Automatic
II ERM P 16:45:16.62 0.19 3.49 10.8 Automatic
IU YSS P 16:46:21.60 -1.7 1.22 15.73 Automatic
IU GUMO P 16:46:51.64 2.56 171.74 17.81 Automatic
IU ULN P 16:49:04.87 0.94 312.12 31.44 Automatic
IU YAK P 16:49:06.47 -0.6 348.83 31.86 Automatic
II TLY P 16:49:36.17 2.86 317.31 34.82 Automatic
IU CHTO P 16:50:22.24 -2.49 262.87 40.89 Automatic
IU TIXI P 16:50:24.57 -0.97 353.61 41.04 Automatic
IU MAKZ P 16:51:21.94 -0.58 306.97 48.09 Automatic
II KURK P 16:51:37.19 -0.67 312.29 50.09 Automatic
II KDAK P 16:51:44.69 0.62 38.54 50.92 Automatic
II WRAB P 16:51:44.74 -2.63 189.49 51.73 Automatic
IU COLA P 16:52:04.27 0.89 29.72 53.52 Automatic
II AAK P 16:52:06.32 -0.17 302.56 53.91 Automatic
II ALE P 16:53:27.7 -0.05 3.42 65.62 Automatic
IU KEV P 16:53:50.22 2.24 340.4 68.89 Automatic
II OBN P 16:54:13.27 0.32 324.84 72.96 Automatic
II UOSS P 16:54:20.87 0.56 289.95 74.23 Automatic
II KIV P 16:54:26.67 1.25 312.73 75.09 Automatic
II FFC P 16:54:40.82 -0.79 32.13 77.94 Automatic
IU KIEV P 16:54:46.97 -1 323.59 79.09 Automatic
IU SFJD P 16:55:00.42 0.72 5.06 81.28 Automatic
II PFO P 16:54:59.92 -0.95 55.68 81.49 Automatic
II RAYN P 16:55:10.17 -0.67 293.58 83.43 Automatic
IU RSSD P 16:55:10.49 -0.52 41.43 83.43 Automatic
IU ANTO P 16:55:11.94 0.66 313.26 83.48 Automatic
IU TUC P 16:55:24.97 0.17 54.13 86.18 Automatic
IU ANMO P 16:55:31.69 0.24 49.87 87.54 Automatic
II BFO P 16:55:44.67 -0.32 331.4 90.41 Automatic
IU CCM P 16:56:03.82 -0.63 39.44 94.62 Automatic