Earthquake · Reviewed by USGS
M4.1 earthquake 138 km SSE of Katsuura, Japan
A magnitude 4.1 earthquake struck 138 km SSE of Katsuura, Japan at Aug 11, 2025, 09:16 UTC, at a depth of 38 km. The epicentre was 139 km (86 mi) SSE of Katsuura.
Details
| Magnitude | 4.1 mb |
|---|---|
| Time | Aug 11, 2025, 09:16 UTC |
| Depth | 37.7 km |
| Coordinates | 34.088, 141.121 |
| Felt reports | 0 |
| Tsunami flag | None |
| Source | USGS event page |
02 — Around it
Other earthquakes within 100 km
| Magnitude | Location | Distance | Depth | Time |
|---|---|---|---|---|
| 4.5 | 212 km SSE of Tateyama, Japan | 100 km / 62 mi | depth 55 km | |
| 5.3 | 148 km SSE of Tateyama, Japan | 71 km / 44 mi | depth 71 km | |
| 4.7 | 202 km SSE of Katsuura, Japan | 64 km / 40 mi | depth 41 km | |
| 4.5 | 128 km SE of Katsuura, Japan | 34 km / 21 mi | depth 10 km | |
| 4.4 | 70 km SSE of Wada, Japan | 81 km / 51 mi | depth 60 km | |
| 4.6 | 208 km SSE of Tateyama, Japan | 96 km / 60 mi | depth 70 km | |
| 4.3 | 221 km SE of Katsuura, Japan | 97 km / 60 mi | depth 10 km | |
| 4.4 | 203 km SE of Katsuura, Japan | 71 km / 44 mi | depth 10 km | |
| 4.5 | 117 km S of Tateyama, Japan | 96 km / 60 mi | depth 110 km | |
| 4.4 | 74 km SSE of Tateyama, Japan | 93 km / 58 mi | depth 95 km | |
| 4.6 | 210 km SSE of Katsuura, Japan | 72 km / 44 mi | depth 10 km | |
| 4.0 | 60 km SE of Wada, Japan | 86 km / 54 mi | depth 59 km | |
| 4.7 | 76 km SE of Shinmachi, Japan | 72 km / 45 mi | depth 35 km | |
| 4.5 | 209 km SSE of Wada, Japan | 80 km / 50 mi | depth 35 km |
USGS can revise magnitude and location after the first report. See magnitude vs intensity and aftershocks.