This event was automatically detected and need to be confirmed by one of our analysts.
Type Event
Magnitude 5 mb
Local datetime 2021/01/23 01:04
Universal datetime 2021/01/22 16:04
Latitude 37.65 ° ± 19 km
Longitude 141.02 ° ± 21 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
Sendai  70 1.037562e+06
Niigata  177 505272
Utsunomiya  160 449865
Iwaki  68 357309
Kōriyama  63 340560
Kawagoe  236 337931
Akita  242 320069
Morioka  229 295172
Fukushima  50 294237
Maebashi  223 282711
Yamagata  92 254538
Mito  150 246538
Nagaoka  192 195318
Sakata  174 100446
Tsuruoka  156 99820

Past seismicity

  This map shows the most significant earthquake around this event.

Event details

Parameters

Evaluation status
RMS 0.65
Azimuthal gap 231.79 °
Number of stations used 9
Number of phases used 9

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
IU MAJO P 16:04:40.87 -0.1 244.58 2.51 Automatic
IU MA2 P 16:09:03.37 0.5 12.79 22.79 Automatic
IU YAK P 16:09:26.17 -1.21 347.57 25.36 Automatic
IU ULN P 16:09:40.12 0.35 303.4 26.68 Automatic
II TLY P 16:10:06.87 0.92 310.38 29.61 Automatic
IU MAKZ P 16:12:05.32 0.03 301.67 43.6 Automatic
II KURK P 16:12:16.97 -0.8 307.69 45.16 Automatic
II NIL P 16:13:24.87 -0.29 287.72 53.98 Automatic
II KIV P 16:15:14.7 0.6 310.73 70.04 Automatic