Earthquake · Reviewed by USGS
M4.2 earthquake 76 km SSE of Onagawa Chō, Japan
A magnitude 4.2 earthquake struck 76 km SSE of Onagawa Chō, Japan at Aug 6, 2026, 23:07 UTC, at a depth of 63 km. The epicentre was 81 km (50 mi) SE of Ishinomaki.
Details
| Magnitude | 4.2 mb |
|---|---|
| Time | Aug 6, 2026, 23:07 UTC |
| Depth | 63.0 km |
| Coordinates | 37.838, 141.862 |
| 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 | 74 km SSE of Onagawa Chō, Japan | 2 km / 1 mi | depth 53 km | |
| 4.4 | 45 km SSE of Ōfunato, Japan | 96 km / 59 mi | depth 57 km | |
| 4.4 | 42 km SE of Onagawa Chō, Japan | 38 km / 24 mi | depth 65 km | |
| 4.3 | 92 km ESE of Tomioka, Japan | 94 km / 58 mi | depth 38 km | |
| 4.5 | 91 km E of Namie, Japan | 38 km / 24 mi | depth 35 km | |
| 4.6 | 54 km E of Namie, Japan | 40 km / 25 mi | depth 55 km | |
| 4.3 | 66 km ESE of Onagawa Chō, Japan | 49 km / 30 mi | depth 49 km | |
| 4.5 | 104 km E of Tomioka, Japan | 70 km / 43 mi | depth 35 km | |
| 4.4 | 95 km SE of Onagawa Chō, Japan | 25 km / 16 mi | depth 35 km | |
| 4.3 | 9 km NE of Tomioka, Japan | 84 km / 52 mi | depth 83 km | |
| 4.4 | 65 km E of Tomioka, Japan | 54 km / 34 mi | depth 45 km |
USGS can revise magnitude and location after the first report. See magnitude vs intensity and aftershocks.