This event was automatically detected and need to be confirmed by one of our analysts.
Type Event
Magnitude 5.3 mb
Local datetime 2021/08/04 11:56
Universal datetime 2021/08/04 02:56
Latitude 36.39 ° ± 7 km
Longitude 141.76 ° ± 7 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  197 8.336599e+06
Yokohama  222 3.574443e+06
Kawasaki  208 1.306785e+06
Sendai  221 1.037562e+06
Hachiōji  234 579399
Niigata  296 505272
Utsunomiya  171 449865
Iwaki  108 357309
Kōriyama  168 340560
Kawagoe  211 337931
Fukushima  189 294237
Maebashi  241 282711
Yamagata  245 254538
Mito  115 246538
Nagaoka  284 195318

Past seismicity

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

Event details

Parameters

Evaluation status
RMS 0.98
Azimuthal gap 172.15 °
Number of stations used 24
Number of phases used 24

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 02:57:13.7 0.61 274.25 2.87 Automatic
II ERM P 02:57:50.27 -1.38 10.44 5.73 Automatic
IU YSS P 02:58:59.10 0.74 3.71 10.6 Automatic
IU MA2 P 03:01:40.47 -0.08 11.28 23.91 Automatic
IU YAK P 03:02:05.82 -0.41 347.39 26.73 Automatic
IU ULN P 03:02:17.2 -0.06 305.24 27.88 Automatic
II TLY P 03:02:44.12 0.37 311.8 30.89 Automatic
IU CHTO P 03:04:12.9 -1.12 256.68 41.39 Automatic
IU MAKZ P 03:04:40.79 -0.44 302.9 44.78 Automatic
II KAPI P 03:04:50.87 0.33 211.13 46.24 Automatic
II KURK P 03:04:53.27 -0.87 308.75 46.41 Automatic
IU COLA P 03:05:17.87 1.33 31.83 49.32 Automatic
II AAK P 03:05:31.57 2.78 299.04 50.9 Automatic
II ALE P 03:06:37.82 0.04 3.51 60.51 Automatic
II OBN P 03:07:30.32 -0.3 323.62 68.53 Automatic
II KIV P 03:07:47.97 0.2 311.37 71.32 Automatic
II UOSS P 03:07:52.2 -0.47 288.24 72.14 Automatic
IU KIEV P 03:08:06.77 -1.18 322.67 74.71 Automatic
IU KONO P 03:08:16.52 0.14 337.31 76.18 Automatic
II BORG P 03:08:28.72 2.12 352.71 78 Automatic
IU ANTO P 03:08:35.68 -0.05 312.45 79.66 Automatic
II RAYN P 03:08:41.92 -0.82 292.66 81.01 Automatic
II BFO P 03:09:06.27 -0.83 331.04 85.69 Automatic
IU CCM P 03:09:31.24 -0.66 38.98 90.9 Automatic