This event was automatically detected and need to be confirmed by one of our analysts.
Type Event
Magnitude 5 mb
Local datetime 2023/02/20 03:55
Universal datetime 2023/02/19 18:55
Latitude 42.86 ° ± 5 km
Longitude 143.18 ° ± 5 km
Depth 120 km (from location) ± 4 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  152 1.883027e+06
Asahikawa  119 356612
Akita  435 320069
Aomori  305 298394
Morioka  389 295172
Hakodate  234 275730
Hachinohe  295 239046
Kushiro  98 183612
Hirosaki  340 174972
Tomakomai  136 174806
Obihiro  8 173890
Otaru  183 143792
Kitami  124 113137
Muroran  190 96197
Korsakov  421 35091

Past seismicity

  This map shows the most significant earthquake around this event.

Event details

Parameters

Evaluation status
RMS 0.94
Azimuthal gap 123.11 °
Number of stations used 31
Number of phases used 31

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 18:56:03.52 0.07 181.32 0.85 Automatic
IU YSS P 18:56:45.10 1.91 355.97 4.11 Automatic
IU MAJO P 18:57:26.12 -1.23 212.86 7.38 Automatic
IU MA2 P 18:59:35.57 -0.89 12.96 17.35 Automatic
IU YAK P 19:00:10.67 -3.07 342.01 20.76 Automatic
IU ULN P 19:01:01.37 0.21 293.86 25.63 Automatic
II TLY P 19:01:22.67 1.6 302.33 27.85 Automatic
IU BILL P 19:01:20.94 -1.58 18.29 28.05 Automatic
IU MAKZ P 19:03:26.12 -0.18 297.34 42.47 Automatic
IU COLA P 19:03:33.52 0.57 35.29 43.31 Automatic
II KURK P 19:03:33.87 -0.39 303.77 43.46 Automatic
IU CHTO P 19:03:40.69 0.98 251.19 44.24 Automatic
II AAK P 19:04:17.37 0.09 294.66 48.95 Automatic
II ALE P 19:04:54.87 0.16 3.99 53.98 Automatic
IU KBS P 19:05:02.42 0.8 349.83 54.93 Automatic
II OBN P 19:06:03.94 -0.42 322.43 64.02 Automatic
II FFC P 19:06:28.57 -0.22 34.47 67.82 Automatic
II KIV P 19:06:30.47 1.14 310.19 67.91 Automatic
IU SFJD P 19:06:39.87 -0.22 5.71 69.64 Automatic
IU KIEV P 19:06:42.97 -0.88 322.05 70.25 Automatic
IU RSSD P 19:07:08.4 -0.14 43.42 74.35 Automatic
II PFO P 19:07:09.52 0.42 58.22 74.53 Automatic
IU ANTO P 19:07:18.84 0.58 312.18 76.11 Automatic
IU TUC P 19:07:34.49 0.82 55.87 78.9 Automatic
II RAYN P 19:07:36.44 -0.45 292.47 79.53 Automatic
IU ANMO P 19:07:38.32 0.83 51.38 79.6 Automatic
II BFO P 19:07:42.67 -0.02 331.46 80.54 Automatic
IU CCM P 19:08:06.9 -0.57 39.99 85.21 Automatic
IU WCI P 19:08:16.92 -0.04 36.71 87.32 Automatic
IU WVT P 19:08:21.84 -0.04 38.91 88.36 Automatic
IU SSPA P 19:08:23.44 0.17 29.91 88.65 Automatic