This event was automatically detected and need to be confirmed by one of our analysts.
Type Event
Magnitude 5.4 mb
Local datetime 2016/08/21 01:28
Universal datetime 2016/08/20 16:28
Latitude 40.30 ° ± 4 km
Longitude 143.65 ° ± 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  363 1.883027e+06
Sendai  318 1.037562e+06
Akita  311 320069
Aomori  255 298394
Morioka  224 295172
Hakodate  295 275730
Yamagata  365 254538
Hachinohe  180 239046
Kushiro  303 183612
Hirosaki  271 174972
Tomakomai  314 174806
Obihiro  295 173890
Sakata  360 100446
Tsuruoka  373 99820
Muroran  319 96197

Past seismicity

  This map shows the most significant earthquake around this event.

Event details

Parameters

Evaluation status
RMS 1.22
Azimuthal gap 74.3 °
Number of stations used 32
Number of phases used 32

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 16:28:43.2 -1.02 348.01 1.75 Automatic
IU MAJO P 16:29:38.77 0.53 230.36 5.68 Automatic
IU YSS P 16:29:52.30 0.32 354.8 6.69 Automatic
IU INCN P 16:31:26.97 0.87 263.43 13.53 Automatic
IU MA2 P 16:32:46.62 2.45 10.69 19.79 Automatic
IU YAK P 16:33:18.37 -3.62 343.38 23.31 Automatic
IU TATO P 16:33:28.12 -0.68 237.11 24.02 Automatic
IU ULN P 16:33:56.87 -0.16 298.5 27.07 Automatic
IU WAKE P 16:34:08.49 -3.31 130.05 28.81 Automatic
IU BILL P 16:34:25.57 -0.65 16.63 30.39 Automatic
II KDAK P 16:36:18.7 1.04 44.14 43.37 Automatic
IU CHTO P 16:36:19.82 -0.13 254.14 43.81 Automatic
IU MAKZ P 16:36:21.77 -0.46 299.87 44.01 Automatic
II KURK P 16:36:30.97 -0.89 306.03 45.21 Automatic
II BRVK P 16:37:06.7 -0.01 310.87 49.6 Automatic
II KAPI P 16:37:11.57 2.16 211.61 50.35 Automatic
II AAK P 16:37:11.82 -0.19 296.8 50.37 Automatic
II LVZ P 16:38:19.47 0.5 335.64 59.61 Automatic
IU KEV P 16:38:26.77 -0.08 339.24 60.76 Automatic
II WRAB P 16:38:23.52 -0.64 190 60.85 Automatic
II OBN P 16:39:03.12 -0.35 323.33 66.27 Automatic
II KIV P 16:39:26.52 0.54 311.16 69.85 Automatic
IU GNI P 16:39:33.97 1.4 306.96 70.93 Automatic
II UOSS P 16:39:40.17 -0.56 288.07 72.32 Automatic
IU RSSD P 16:40:02.82 0.43 43.2 75.97 Automatic
IU ANTO P 16:40:14.79 0.47 312.86 78.1 Automatic
IU TUC P 16:40:26.7 1.14 55.75 80.05 Automatic
II RAYN P 16:40:28.27 -0.73 293.17 80.85 Automatic
IU ANMO P 16:40:30.87 1.22 51.31 80.92 Automatic
II BFO P 16:40:40.52 0.06 331.9 82.95 Automatic
IU CCM P 16:40:59.97 -0.42 40.17 86.94 Automatic
IU SSPA P 16:41:18.87 0.76 30.21 90.69 Automatic