This event was automatically detected and need to be confirmed by one of our analysts.
Type Event
Magnitude 5 mb
Local datetime 2023/12/28 22:16
Universal datetime 2023/12/28 13:16
Latitude 40.84 ° ± 7 km
Longitude 142.00 ° ± 9 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  254 1.883027e+06
Sendai  296 1.037562e+06
Akita  206 320069
Aomori  109 298394
Morioka  145 295172
Hakodate  149 275730
Hachinohe  54 239046
Kushiro  308 183612
Hirosaki  133 174972
Tomakomai  204 174806
Obihiro  251 173890
Otaru  274 143792
Sakata  282 100446
Tsuruoka  302 99820
Muroran  188 96197

Past seismicity

  This map shows the most significant earthquake around this event.

Event details

Parameters

Evaluation status
RMS 1.47
Azimuthal gap 179.69 °
Number of stations used 14
Number of phases used 14

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 13:17:20.77 1.02 36.11 1.46 Automatic
IU MAJO P 13:18:13.9 1.21 215.8 5.22 Automatic
IU YSS P 13:18:27.30 2.85 4.84 6.14 Automatic
IU YAK P 13:21:51.47 -1.52 344.8 22.45 Automatic
IU ULN P 13:22:25.62 0.86 297.65 25.71 Automatic
IU BILL P 13:23:03.37 -1.59 17.88 30.24 Automatic
IU MAKZ P 13:24:50.92 -0.37 298.94 42.65 Automatic
IU CHTO P 13:24:50.99 -0.55 252.13 42.77 Automatic
II KURK P 13:25:00.57 -0.66 305.25 43.88 Automatic
II AAK P 13:25:44.32 2.68 295.79 49.01 Automatic
II ALE P 13:26:32.57 -1.22 3.72 56.05 Automatic
II KIV P 13:27:58.12 0.2 310.25 68.54 Automatic
II UOSS P 13:28:11.37 -1.19 286.95 70.97 Automatic
IU KIEV P 13:28:13.22 -1.73 321.94 71.3 Automatic