This event was automatically detected and need to be confirmed by one of our analysts.
Type Event
Magnitude 5.5 mb
Local datetime 2021/05/16 12:23
Universal datetime 2021/05/16 03:23
Latitude 42.06 ° ± 4 km
Longitude 144.38 ° ± 3 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
Sapporo  274 1.883027e+06
Sendai  507 1.037562e+06
Asahikawa  249 356612
Akita  446 320069
Aomori  336 298394
Morioka  377 295172
Hakodate  303 275730
Hachinohe  293 239046
Kushiro  102 183612
Hirosaki  367 174972
Tomakomai  242 174806
Obihiro  139 173890
Otaru  306 143792
Kitami  203 113137
Muroran  282 96197

Past seismicity

  This map shows the most significant earthquake around this event.

Event details

Parameters

Evaluation status
RMS 1.87
Azimuthal gap 131.9 °
Number of stations used 42
Number of phases used 42

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 03:24:12.82 1.11 267.57 0.91 Automatic
IU YSS P 03:25:13.75 4.09 347.32 5.03 Automatic
IU MAJO P 03:25:40.47 -0.28 222.9 7.29 Automatic
IU INCN P 03:27:18.42 0.49 257.29 14.36 Automatic
IU PET P 03:27:28.42 8.23 36.2 14.54 Automatic
IU MA2 P 03:28:01.77 -2.22 10.54 17.96 Automatic
IU YAK P 03:28:42.47 -4.07 341.31 21.8 Automatic
IU TATO P 03:29:23.52 1.25 235.08 25.46 Automatic
IU ULN P 03:29:34.52 -0.17 295.4 26.76 Automatic
IU ADK P 03:29:45.9 -0.05 55.92 27.93 Automatic
IU BILL P 03:29:46.37 -3.94 17.08 28.55 Automatic
II TLY P 03:29:55.7 0.16 303.49 29.02 Automatic
II KDAK P 03:31:42.97 -1.19 45.55 41.74 Automatic
IU COLA P 03:31:57.94 -0.21 34.85 43.46 Automatic
IU MAKZ P 03:31:58.94 -0.68 298.47 43.63 Automatic
II KURK P 03:32:06.74 -1 304.75 44.64 Automatic
IU CHTO P 03:32:09.7 0.55 253.05 44.83 Automatic
II AAK P 03:32:50.2 -0.23 295.77 50.09 Automatic
II KAPI P 03:33:03.94 0.73 211.72 52.14 Automatic
II ALE P 03:33:23.37 -1.2 4.12 54.71 Automatic
IU KBS P 03:33:33.7 0.12 350.13 55.87 Automatic
II LVZ P 03:33:50.52 0.67 335.38 58.24 Automatic
II WRAB P 03:34:15.79 -1.11 190.61 62.68 Automatic
II OBN P 03:34:36.22 -0.7 323.14 65.19 Automatic
IU MBWA P 03:34:46.67 0.12 204.95 67.2 Automatic
II FFC P 03:34:53.87 -0.95 34.8 67.98 Automatic
II KIV P 03:35:02.32 0.51 311.01 69.1 Automatic
IU GNI P 03:35:11.97 2.75 306.83 70.31 Automatic
IU SFJD P 03:35:08.67 -0.85 6.16 70.34 Automatic
IU KIEV P 03:35:14.82 -1.28 322.78 71.43 Automatic
II UOSS P 03:35:20.47 -0.52 287.96 72.3 Automatic
II PFO P 03:35:32.57 0.15 58.7 74.2 Automatic
IU RSSD P 03:35:32.39 -0.87 43.89 74.32 Automatic
IU ANTO P 03:35:50.54 0.24 312.98 77.3 Automatic
IU TUC P 03:35:57.42 -0.08 56.45 78.62 Automatic
IU NWAO P 03:35:57.27 0.99 202.95 79.02 Automatic
IU ANMO P 03:36:02.7 0.22 51.97 79.4 Automatic
II BFO P 03:36:13.97 -0.14 332.2 81.66 Automatic
IU CCM P 03:36:31.37 -1.08 40.7 85.25 Automatic
IU WCI P 03:36:42.82 -0.32 37.46 87.43 Automatic
IU HKT P 03:36:51.62 0.5 48.76 89.14 Automatic
IU HRV P 03:36:53.7 0.27 25.64 89.46 Automatic