This event was automatically detected and need to be confirmed by one of our analysts.
Type Event
Magnitude 5.2 mb
Local datetime 2025/07/28 02:03
Universal datetime 2025/07/27 17:03
Latitude 37.73 ° ± 6 km
Longitude 141.89 ° ± 8 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  98 1.037562e+06
Niigata  251 505272
Utsunomiya  222 449865
Iwaki  116 357309
Kōriyama  138 340560
Kawagoe  293 337931
Akita  270 320069
Morioka  231 295172
Fukushima  125 294237
Maebashi  291 282711
Yamagata  150 254538
Mito  196 246538
Nagaoka  269 195318
Sakata  222 100446
Tsuruoka  210 99820

Past seismicity

  This map shows the most significant earthquake around this event.

Event details

Parameters

Evaluation status
RMS 2.04
Azimuthal gap 138.29 °
Number of stations used 10
Number of phases used 10

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 17:04:44.37 4.34 249.16 3.16 Automatic
II ERM P 17:04:59.42 2.62 12.43 4.4 Automatic
IU YSS P 17:06:04.80 1.38 3.72 9.25 Automatic
IU YAK P 17:09:16.47 -1.64 346.66 25.44 Automatic
IU ULN P 17:09:32.57 -1.99 303.07 27.21 Automatic
II TLY P 17:09:59.17 -0.98 310.04 30.09 Automatic
IU MAKZ P 17:11:58.54 -1.11 301.76 44.15 Automatic
II KURK P 17:12:09.89 -1.8 307.75 45.66 Automatic
II WRAB P 17:13:40.17 -1.26 188.34 58.1 Automatic
IU ANMO P 17:16:20.47 0.43 50.05 83.61 Automatic