This event was automatically detected and need to be confirmed by one of our analysts.
Type Event
Magnitude 5.5 mb
Local datetime 2025/08/21 23:21
Universal datetime 2025/08/21 11:21
Latitude 51.92 ° ± 4 km
Longitude 159.96 ° ± 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
Petropavlovsk Kamchatskiy  156 187282
Yuzhno Sakhalinsk  1361 176484
Magadan  1026 95282
Korsakov  1377 35091
Kholmsk  1401 32681
Nikolayevsk na Amure  1308 27152
Okha  1161 26560
Poronaysk  1229 16677
Uglegorsk  1307 12669
Aleksandrovsk Sakhalinskiy  1241 12024
Dolinsk  1336 11989
Nogliki  1154 10098
Susuman  1398 7367
Makarov  1273 6663
Okhotsk  1336 5570

Past seismicity

  This map shows only the 5 most significant earthquakes around this event.

Event details

Parameters

Evaluation status
RMS 1.3
Azimuthal gap 124.25 °
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 PET P 11:21:31.54 1.85 324.55 1.36 Automatic
IU MA2 P 11:23:21.42 3.06 329.68 9.22 Automatic
IU YSS P 11:24:01.55 2.21 252.8 12.2 Automatic
IU BILL P 11:24:56.24 -0.07 8.58 16.45 Automatic
IU YAK P 11:25:26.62 -1.79 313.69 19.09 Automatic
IU MAJO P 11:25:56.47 -0.31 233.53 21.73 Automatic
IU TIXI P 11:26:19.14 -1.34 336.43 24.01 Automatic
II KDAK P 11:26:49.62 -1.31 58.79 27.34 Automatic
IU INCN P 11:26:52.57 1.45 251.42 27.4 Automatic
IU COLA P 11:27:06.57 -0.58 43.5 29.16 Automatic
IU ULN P 11:27:44.77 -1.25 284.55 33.56 Automatic
II ALE P 11:29:13.32 0.73 7.28 43.87 Automatic
IU KBS P 11:29:44.79 1.14 352.1 47.79 Automatic
II KURK P 11:29:43.59 -2.35 302.73 48.08 Automatic
IU MAKZ P 11:29:47.37 -2.27 296.75 48.56 Automatic
IU KEV P 11:30:27.12 -0.74 341.67 53.62 Automatic
II AAK P 11:30:38.92 -1.11 296.9 55.32 Automatic
IU CHTO P 11:30:55.27 0.24 258.92 57.54 Automatic
IU SFJD P 11:31:05.92 0.49 13.43 58.86 Automatic
IU RSSD P 11:31:12.29 -0.06 55.62 59.89 Automatic
II OBN P 11:31:33.64 -1 327.64 63.16 Automatic
II BORG P 11:31:37.94 2.11 0.62 63.33 Automatic
IU TUC P 11:31:45.4 0.69 69.2 64.69 Automatic
IU ANMO P 11:31:48.22 0.39 64.31 65.21 Automatic
IU KONO P 11:31:52.94 0.3 344.11 65.89 Automatic
II KAPI P 11:31:53.72 0.5 224.57 66.4 Automatic
IU KIEV P 11:32:12.42 -1.44 329.12 69.25 Automatic
II KIV P 11:32:18.62 0.57 317.07 69.95 Automatic
IU CCM P 11:32:22.74 -0.45 52.12 70.8 Automatic
II ESK P 11:32:29.97 0.14 350.01 71.86 Automatic
IU GNI P 11:32:32.57 1.24 313.4 72.14 Automatic
IU CTAO P 11:32:36.4 3.06 193.46 73 Automatic
IU WVT P 11:32:42.72 0.53 51.07 73.99 Automatic
IU SSPA P 11:32:46.97 0.42 41.76 74.72 Automatic
II WRAB P 11:32:45.7 -1.25 204.84 75.26 Automatic
II BFO P 11:32:58.97 -0.01 341.07 76.86 Automatic
IU ANTO P 11:33:01.89 0.2 321.19 77.37 Automatic
II PALK P 11:33:01.52 -0.55 266.04 77.66 Automatic
II UOSS P 11:33:06.32 -1.36 296.02 78.52 Automatic
IU MBWA P 11:33:18.7 -0.77 217.57 81.08 Automatic
II RAYN P 11:33:42.54 -1.31 303.14 85.41 Automatic