This event was automatically detected and need to be confirmed by one of our analysts.
Type Event
Magnitude 5 mb
Local datetime 2023/02/28 03:55
Universal datetime 2023/02/27 18:55
Latitude 36.78 ° ± 9 km
Longitude 144.20 ° ± 10 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  418 8.336599e+06
Yokohama  440 3.574443e+06
Kawasaki  428 1.306785e+06
Sendai  328 1.037562e+06
Hachiōji  456 579399
Utsunomiya  388 449865
Iwaki  297 357309
Kōriyama  347 340560
Kawagoe  434 337931
Morioka  423 295172
Fukushima  348 294237
Yamagata  381 254538
Mito  336 246538
Sakata  451 100446
Tsuruoka  441 99820

Past seismicity

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

Event details

Parameters

Evaluation status
RMS 2.82
Azimuthal gap 197.4 °
Number of stations used 11
Number of phases used 11

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 18:57:04.42 3.67 269.05 4.82 Automatic
IU MA2 P 19:00:58.62 3.8 8.46 23.19 Automatic
IU YAK P 19:01:25.67 -2.8 344.89 26.82 Automatic
IU ULN P 19:01:48.62 -2.28 304.06 29.28 Automatic
II TLY P 19:02:11.89 -4 310.67 32.11 Automatic
IU MAKZ P 19:04:12.67 -1.34 302.98 46.22 Automatic
II KURK P 19:04:22.89 -2.7 308.78 47.7 Automatic
II AAK P 19:05:04.2 2.44 299.47 52.42 Automatic
IU MBWA P 19:06:07.19 -1.71 205.85 62.37 Automatic
II KIV P 19:07:19.37 2.98 312.31 72.52 Automatic
IU KIEV P 19:07:36.27 1.94 323.64 75.58 Automatic