This event was automatically detected and need to be confirmed by one of our analysts.
Type Event
Magnitude 5.1 mb
Local datetime 2015/02/21 04:28
Universal datetime 2015/02/20 19:28
Latitude 42.09 ° ± 4 km
Longitude 142.74 ° ± 4 km
Depth 53 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  159 1.883027e+06
Asahikawa  187 356612
Akita  346 320069
Aomori  220 298394
Morioka  296 295172
Hakodate  169 275730
Hachinohe  202 239046
Kushiro  167 183612
Hirosaki  254 174972
Tomakomai  116 174806
Obihiro  100 173890
Otaru  189 143792
Kitami  217 113137
Sakata  429 100446
Muroran  148 96197

Past seismicity

  This map shows the most significant earthquake around this event.

Event details

Parameters

Evaluation status
RMS 1.49
Azimuthal gap 85.48 °
Number of stations used 29
Number of phases used 29

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 19:28:37.37 -1.94 103.4 0.32 Automatic
IU YSS P 19:29:41.95 3.14 0.18 4.87 Automatic
IU MAJO P 19:30:01.72 -0.3 213.79 6.56 Automatic
IU INCN P 19:31:36.17 3.1 254.88 13.19 Automatic
IU MA2 P 19:32:36.57 0.08 13.11 18.18 Automatic
IU YAK P 19:33:08.35 -3.32 343.12 21.4 Automatic
IU TATO P 19:33:41.47 -0.94 232.39 24.49 Automatic
IU ULN P 19:33:52.87 -0.67 295.31 25.65 Automatic
II TLY P 19:34:14.17 -0.43 303.59 27.99 Automatic
IU TIXI P 19:34:31.97 -2.98 351.4 30.33 Automatic
IU MAKZ P 19:36:18.62 -0.88 297.95 42.54 Automatic
II KURK P 19:36:27.22 -1 304.34 43.62 Automatic
IU CHTO P 19:36:27.32 -0.64 251.54 43.68 Automatic
IU COLA P 19:36:33.17 0.95 34.81 44.13 Automatic
II BRVK P 19:37:02.17 -0.04 309.46 47.92 Automatic
II AAK P 19:37:09.77 -0.57 295.09 48.98 Automatic
II KAPI P 19:37:28.97 1.68 209.79 51.54 Automatic
II NIL P 19:37:47.72 0.01 285.45 53.98 Automatic
II WRAB P 19:38:42.82 -1.3 188.88 62.51 Automatic
II OBN P 19:38:59.80 -0.53 322.49 64.43 Automatic
II PALK P 19:38:59.87 0.08 256.04 64.53 Automatic
II KIV P 19:39:24.97 0.73 310.21 68.16 Automatic
II FFC P 19:39:27.62 0.32 34.1 68.64 Automatic
IU GNI P 19:39:33.47 2.09 305.99 69.31 Automatic
IU SFJD P 19:39:38.92 0.53 5.5 70.44 Automatic
II UOSS P 19:39:41.77 -0.46 286.97 71.13 Automatic
IU RSSD P 19:40:07.22 0.98 43.04 75.13 Automatic
IU TUC P 19:40:33.37 2.25 55.49 79.61 Automatic
II BFO P 19:40:39.17 0.08 331.26 81.05 Automatic