This event was automatically detected and need to be confirmed by one of our analysts.
Type Event
Magnitude 5.1 mb
Local datetime 2026/03/28 00:24
Universal datetime 2026/03/27 15:24
Latitude 39.49 ° ± 6 km
Longitude 142.99 ° ± 8 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
Sendai  217 1.037562e+06
Iwaki  327 357309
Kōriyama  325 340560
Akita  250 320069
Aomori  244 298394
Morioka  162 295172
Fukushima  293 294237
Hakodate  319 275730
Yamagata  269 254538
Hachinohe  168 239046
Hirosaki  246 174972
Tomakomai  371 174806
Sakata  279 100446
Tsuruoka  287 99820
Muroran  360 96197

Past seismicity

  This map shows the most significant earthquake around this event.

Event details

Parameters

Evaluation status
RMS 0.97
Azimuthal gap 155.71 °
Number of stations used 13
Number of phases used 13

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
II ERM P 15:25:14.22 -0.71 2.78 2.53 Automatic
IU MAJO P 15:25:47.29 1.22 233.51 4.78 Automatic
IU ULN P 15:30:17.32 0.58 299.95 27.03 Automatic
IU CHTO P 15:32:33.94 -0.47 254.4 43.1 Automatic
IU MAKZ P 15:32:41.77 -0.34 300.43 43.98 Automatic
II KURK P 15:32:51.79 -0.76 306.55 45.28 Automatic
IU COLA P 15:33:01.79 2.31 33.37 46.18 Automatic
II AAK P 15:33:31.52 0.01 297.17 50.29 Automatic
II WRAB P 15:34:36.89 -1.35 189.38 59.97 Automatic
II FFC P 15:35:50.49 -0.83 33.67 70.69 Automatic
IU KIEV P 15:36:03.47 -0.76 322.65 72.83 Automatic
IU ANTO P 15:36:36.12 0.68 312.64 78.28 Automatic
II BFO P 15:37:03.42 0.4 331.58 83.43 Automatic