This event was automatically detected and need to be confirmed by one of our analysts.
Type Event
Magnitude 5.1 mb
Local datetime 2021/08/04 07:10
Universal datetime 2021/08/03 22:10
Latitude 36.33 ° ± 6 km
Longitude 141.82 ° ± 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  200 8.336599e+06
Yokohama  224 3.574443e+06
Kawasaki  210 1.306785e+06
Sendai  229 1.037562e+06
Hachiōji  237 579399
Utsunomiya  177 449865
Iwaki  116 357309
Kōriyama  176 340560
Kawagoe  215 337931
Fukushima  198 294237
Maebashi  247 282711
Yamagata  254 254538
Mito  120 246538
Nagaoka  292 195318
Kōfu  301 190000

Past seismicity

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

Event details

Parameters

Evaluation status
RMS 1
Azimuthal gap 138.5 °
Number of stations used 26
Number of phases used 26

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 22:11:44.37 0.44 275.39 2.92 Automatic
II ERM P 22:12:21.72 -1.38 9.91 5.78 Automatic
IU YSS P 22:13:30.10 0.22 3.47 10.66 Automatic
IU PET P 22:15:36.32 1.46 29.92 20.43 Automatic
IU MA2 P 22:16:11.77 0 11.19 23.96 Automatic
IU YAK P 22:16:37.22 -0.38 347.36 26.8 Automatic
IU ULN P 22:16:48.57 0.09 305.31 27.96 Automatic
II TLY P 22:17:16.72 1.55 311.86 30.97 Automatic
IU CHTO P 22:18:42.92 -1.31 256.8 41.42 Automatic
IU MAKZ P 22:19:12.2 -0.54 302.96 44.85 Automatic
II KURK P 22:19:24.52 -0.96 308.8 46.49 Automatic
II AAK P 22:20:01.12 1.05 299.1 50.97 Automatic
II WRAB P 22:20:39.42 0.56 188.4 56.7 Automatic
II ALE P 22:21:08.97 0.05 3.52 60.57 Automatic
II OBN P 22:22:01.47 -0.38 323.66 68.61 Automatic
II KIV P 22:22:19.2 0.04 311.41 71.39 Automatic
IU GNI P 22:22:25.67 1.97 307.18 72.18 Automatic
II FFC P 22:22:32.92 -0.72 32.65 73.85 Automatic
IU KIEV P 22:22:37.82 -1.32 322.7 74.79 Automatic
IU KONO P 22:22:47.72 0.17 337.34 76.25 Automatic
II BORG P 22:22:59.87 2.15 352.74 78.06 Automatic
IU ANTO P 22:23:06.83 -0.06 312.49 79.74 Automatic
II RAYN P 22:23:12.67 -1.17 292.7 81.08 Automatic
IU ANMO P 22:23:32.62 0.53 49.9 84.55 Automatic
II BFO P 22:23:37.37 -0.85 331.08 85.76 Automatic
IU CCM P 22:24:01.52 -1.21 39.01 90.92 Automatic