This event was automatically detected and need to be confirmed by one of our analysts.
Type Event
Magnitude 5.2 mb
Local datetime 2023/02/28 20:12
Universal datetime 2023/02/28 11:12
Latitude 33.08 ° ± 4 km
Longitude 141.65 ° ± 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  338 8.336599e+06
Yokohama  322 3.574443e+06
Nagoya  494 2.191279e+06
Kawasaki  325 1.306785e+06
Shizuoka  368 701561
Hamamatsu  405 605098
Hachiōji  357 579399
Utsunomiya  418 449865
Iwaki  446 357309
Kōriyama  494 340560
Kawagoe  372 337931
Maebashi  436 282711
Mito  380 246538
Matsumoto  486 210667
Kōfu  401 190000

Past seismicity

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

Event details

Parameters

Evaluation status
RMS 1.13
Azimuthal gap 115.07 °
Number of stations used 23
Number of phases used 23

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 11:13:20.62 0.69 321.71 4.47 Automatic
IU YSS P 11:15:28.85 -0.06 3.15 13.9 Automatic
IU GUMO P 11:16:42.87 1.97 170.69 19.71 Automatic
IU MA2 P 11:17:55.92 0.32 10.12 27.17 Automatic
IU ULN P 11:18:20.27 0.45 310.02 29.83 Automatic
II TLY P 11:18:48.84 0.2 315.66 33.11 Automatic
IU BILL P 11:19:27.54 -0.85 14.82 37.77 Automatic
IU MAKZ P 11:20:39.84 -0.95 305.55 46.57 Automatic
IU COLA P 11:21:24.19 0.53 30.44 52.19 Automatic
II AAK P 11:21:25.77 -0.32 301.27 52.48 Automatic
IU MBWA P 11:22:02.2 -2.03 204.2 58.14 Automatic
II PALK P 11:22:33.22 1.81 259.75 61.79 Automatic
II ALE P 11:22:45.72 0.31 3.39 63.81 Automatic
IU NWAO P 11:23:19.99 -1.24 201.68 69.9 Automatic
II UOSS P 11:23:43.7 -0.75 289.16 73.11 Automatic
II KIV P 11:23:46.2 0.04 312.11 73.45 Automatic
IU GNI P 11:23:50.87 1.39 307.89 74.04 Automatic
II FFC P 11:24:03.27 -1.28 32.12 76.66 Automatic
IU KIEV P 11:24:06.72 -1.41 323.12 77.29 Automatic
II PFO P 11:24:26.59 -1.17 55.62 80.89 Automatic
IU RSSD P 11:24:38.4 2.27 41.3 82.39 Automatic
IU TUC P 11:24:50.94 -0.71 53.92 85.52 Automatic
IU ANMO P 11:24:58.54 0.78 49.62 86.76 Automatic