This event was automatically detected and need to be confirmed by one of our analysts.
Type Event
Magnitude 5.6 mb
Local datetime 2021/04/18 09:29
Universal datetime 2021/04/18 00:29
Latitude 38.32 ° ± 4 km
Longitude 141.94 ° ± 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
Sendai  80 1.037562e+06
Niigata  258 505272
Utsunomiya  269 449865
Iwaki  168 357309
Kōriyama  171 340560
Akita  222 320069
Morioka  170 295172
Fukushima  144 294237
Yamagata  142 254538
Mito  252 246538
Hachinohe  245 239046
Nagaoka  288 195318
Hirosaki  280 174972
Sakata  194 100446
Tsuruoka  189 99820

Past seismicity

  This map shows the most significant earthquake around this event.

Event details

Parameters

Evaluation status
RMS 1.42
Azimuthal gap 131.76 °
Number of stations used 41
Number of phases used 41

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 00:30:03.42 2.35 240.2 3.46 Automatic
II ERM P 00:30:07.67 1.92 13.76 3.81 Automatic
IU YSS P 00:31:13.60 1.31 3.73 8.66 Automatic
IU INCN P 00:32:06.22 6.24 270.74 12.1 Automatic
IU PET P 00:33:27.62 2.24 32.69 18.68 Automatic
IU MA2 P 00:34:01.32 0.04 11.99 21.98 Automatic
IU YAK P 00:34:28.42 -1.56 346.31 24.88 Automatic
IU ULN P 00:34:49.27 0.23 302.08 26.93 Automatic
II TLY P 00:35:13.82 -0.3 309.23 29.74 Automatic
IU TIXI P 00:35:49.67 -1.27 352.67 33.97 Automatic
IU CHTO P 00:36:57.44 -1.26 254.72 42 Automatic
IU MAKZ P 00:37:13.39 -1.08 301.25 43.87 Automatic
II KURK P 00:37:24.77 -1.36 307.3 45.33 Automatic
II KDAK P 00:37:29.64 0.53 42.65 45.72 Automatic
IU COLA P 00:37:44.97 1.1 32.75 47.6 Automatic
II KAPI P 00:37:44.59 0.02 210.43 47.98 Automatic
II AAK P 00:38:02.37 -0.92 297.68 50.1 Automatic
II ALE P 00:39:04.57 -0.33 3.61 58.57 Automatic
II WRAB P 00:39:01.94 -0.67 188.34 58.69 Automatic
II LVZ P 00:39:21.27 0.36 335.71 60.87 Automatic
IU MBWA P 00:39:32.19 -0.17 203.3 63.03 Automatic
II PALK P 00:39:33.94 -0.85 257.26 63.07 Automatic
II OBN P 00:40:00.62 -1.25 323.21 67.06 Automatic
II KIV P 00:40:20.32 -0.85 310.94 70.15 Automatic
IU GNI P 00:40:26.57 -0.11 306.7 71.05 Automatic
II UOSS P 00:40:29.7 -1.12 287.73 71.67 Automatic
II FFC P 00:40:32.82 -0.35 33.03 72.12 Automatic
IU KIEV P 00:40:38.22 -1.76 322.4 73.26 Automatic
IU SFJD P 00:40:45.17 -0.57 5.07 74.24 Automatic
IU KONO P 00:40:45.87 -1.07 337.19 74.45 Automatic
IU NWAO P 00:40:45.64 -0.13 201.31 74.86 Automatic
II PFO P 00:41:07.39 1.62 56.59 77.77 Automatic
IU RSSD P 00:41:08.92 -0.02 42.03 78.32 Automatic
IU ANTO P 00:41:08.82 -0.86 312.27 78.46 Automatic
II ESK P 00:41:27.62 0.14 340.81 81.74 Automatic
IU TUC P 00:41:30.59 0.53 54.53 82.27 Automatic
IU ANMO P 00:41:35.99 1.06 50.13 83.2 Automatic
II BFO P 00:41:38.17 -1.29 331.05 84.06 Automatic
IU CCM P 00:42:04.62 -0.36 39.08 89.31 Automatic
IU WCI P 00:42:15.17 -0.2 35.88 91.53 Automatic
IU WVT P 00:42:19.82 0 38.11 92.5 Automatic