This event was automatically detected and need to be confirmed by one of our analysts.
Type Event
Magnitude 5.5 mb
Local datetime 2016/08/21 00:58
Universal datetime 2016/08/20 15:58
Latitude 40.42 ° ± 4 km
Longitude 143.55 ° ± 4 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  348 1.883027e+06
Sendai  321 1.037562e+06
Akita  305 320069
Aomori  245 298394
Morioka  220 295172
Hakodate  281 275730
Yamagata  366 254538
Hachinohe  171 239046
Kushiro  292 183612
Hirosaki  262 174972
Tomakomai  299 174806
Obihiro  281 173890
Sakata  358 100446
Tsuruoka  372 99820
Muroran  304 96197

Past seismicity

  This map shows the most significant earthquake around this event.

Event details

Parameters

Evaluation status
RMS 1.32
Azimuthal gap 132.02 °
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 15:58:33.22 -0.93 349.66 1.63 Automatic
IU MAJO P 15:59:30.32 -0.13 228.93 5.7 Automatic
IU YSS P 15:59:41.90 -0.37 355.28 6.57 Automatic
IU INCN P 16:01:18.67 1.43 262.85 13.47 Automatic
IU MA2 P 16:02:36.42 1.38 10.89 19.69 Automatic
IU YAK P 16:03:08.77 -3.85 343.41 23.18 Automatic
IU TATO P 16:03:19.27 -1.49 236.74 24.02 Automatic
IU ULN P 16:03:47.52 -0.39 298.31 26.95 Automatic
IU BILL P 16:04:16.22 -1.18 16.75 30.3 Automatic
IU TIXI P 16:04:31.87 -1.14 351.35 32.07 Automatic
II KDAK P 16:06:07.42 -1.32 44.22 43.34 Automatic
IU CHTO P 16:06:11.19 -0.39 253.94 43.77 Automatic
IU MAKZ P 16:06:12.42 -0.79 299.74 43.88 Automatic
II KURK P 16:06:21.92 -0.89 305.91 45.08 Automatic
IU COLA P 16:06:24.52 1.15 33.88 45.17 Automatic
II BRVK P 16:06:56.52 -0.52 310.77 49.46 Automatic
II AAK P 16:07:02.72 -0.35 296.68 50.26 Automatic
II KAPI P 16:07:02.47 0.65 211.44 50.41 Automatic
IU KBS P 16:07:56.97 1.72 350.17 57.38 Automatic
II LVZ P 16:08:09.97 -0.02 335.59 59.48 Automatic
IU KEV P 16:08:17.52 -0.37 339.19 60.62 Automatic
II WRAB P 16:08:14.67 -2.14 189.89 60.95 Automatic
II OBN P 16:08:54.37 -0.18 323.26 66.13 Automatic
II KIV P 16:09:17.42 0.29 311.09 69.71 Automatic
IU GNI P 16:09:25.77 2.02 306.88 70.8 Automatic
IU SFJD P 16:09:31.92 0.57 5.77 72.04 Automatic
II UOSS P 16:09:31.32 -0.73 287.98 72.22 Automatic
IU KONO P 16:09:37.42 0.38 337.64 72.99 Automatic
II BORG P 16:09:46.57 2.61 353.36 74.17 Automatic
II PFO P 16:09:50.97 -1.07 57.87 75.59 Automatic
IU RSSD P 16:09:53.37 -0.79 43.17 75.94 Automatic
IU ANTO P 16:10:06.29 0.75 312.79 77.97 Automatic
IU TUC P 16:10:16.27 -0.6 55.71 80.05 Automatic
II ESK P 16:10:20.22 2.52 341.54 80.17 Automatic
II RAYN P 16:10:19.32 -1.03 293.09 80.73 Automatic
IU ANMO P 16:10:21.32 -0.21 51.27 80.91 Automatic
II BFO P 16:10:31.32 -0.39 331.84 82.82 Automatic
IU CCM P 16:10:51.7 -1.09 40.12 86.9 Automatic
IU WVT P 16:11:09.22 2 39.13 90.09 Automatic
IU SSPA P 16:11:10.97 1.18 30.15 90.63 Automatic
IU PAB P 16:11:31.22 1.92 335.72 94.85 Automatic
IU KMBO P 16:12:06.42 1.78 279.87 103.08 Automatic