This event was automatically detected and need to be confirmed by one of our analysts.
| Type | Event |
| Magnitude | 5.1 mb |
| Local datetime | 2025/09/25 03:03 |
| Universal datetime | 2025/09/24 18:03 |
| Latitude | 39.49 ° ± 10 km |
| Longitude | 140.88 ° ± 21 km |
| Depth | 10 km (from location) ± 0.0 km |
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Testify !Near cities
This table shows only the most populated cities around the epicenter.
| Name | Distance (km) | Population |
|---|---|---|
Sendai 
|
133 | 1.037562e+06 |
| Niigata
|
237 | 505272 |
| Iwaki
|
270 | 357309 |
| Kōriyama
|
235 | 340560 |
| Akita
|
73 | 320069 |
| Aomori
|
149 | 298394 |
| Morioka
|
33 | 295172 |
| Fukushima
|
197 | 294237 |
| Hakodate
|
257 | 275730 |
| Yamagata
|
144 | 254538 |
| Hachinohe
|
127 | 239046 |
| Nagaoka
|
287 | 195318 |
| Hirosaki
|
126 | 174972 |
| Sakata
|
109 | 100446 |
| Tsuruoka
|
126 | 99820 |
Past seismicity
This map shows the most significant earthquake around this event.
Event details
Parameters
| Evaluation status | |
|---|---|
| RMS | 1.91 |
| Azimuthal gap | 206.8 ° |
| Number of stations used | 8 |
| Number of phases used | 8 |
Webservices
The data of this event are available in various formats (QuakeML, GeoJSON and text) through the following links :
Phases
| Network | Station | Phase | Time | Residual (s) | Azimuth (°) | Distance (°) | Mode |
|---|---|---|---|---|---|---|---|
| IU | MAJO | P | 18:04:14.82 | -1.07 | 216.53 | 3.62 | Automatic |
| IU | YSS | P | 18:05:12.45 | 2 | 9.73 | 7.6 | Automatic |
| IU | YAK | P | 18:08:28.62 | -1.76 | 346.82 | 23.56 | Automatic |
| IU | CHTO | P | 18:11:11.17 | 3.61 | 252.55 | 41.54 | Automatic |
| IU | MAKZ | P | 18:11:16.62 | -0.04 | 299.97 | 42.57 | Automatic |
| II | KURK | P | 18:11:27.77 | -0.23 | 306.19 | 43.98 | Automatic |
| II | KIV | P | 18:14:25.57 | 0.26 | 310.15 | 68.77 | Automatic |
| IU | KIEV | P | 18:14:41.42 | -2.77 | 321.72 | 71.84 | Automatic |