Earthquake · Reviewed by USGS
M4.1 earthquake 94 km S of Koshima, Japan
A magnitude 4.1 earthquake struck 94 km S of Koshima, Japan at Mar 21, 2026, 15:45 UTC, at a depth of 42 km. The epicentre was 151 km (94 mi) S of Nishinoomote.
Details
| Magnitude | 4.1 mb |
|---|---|
| Time | Mar 21, 2026, 15:45 UTC |
| Depth | 41.9 km |
| Coordinates | 29.394, 130.713 |
| Felt reports | 0 |
| Tsunami flag | None |
| Source | USGS event page |
02 — Around it
Other earthquakes within 100 km
| Magnitude | Location | Distance | Depth | Time |
|---|---|---|---|---|
| 4.8 | 109 km S of Koshima, Japan | 17 km / 10 mi | depth 30 km | |
| 4.5 | 55 km SE of Koseda, Japan | 84 km / 52 mi | depth 38 km | |
| 4.3 | 107 km S of Yudomari, Japan | 26 km / 16 mi | depth 13 km | |
| 5.1 | 99 km S of Yudomari, Japan | 33 km / 20 mi | depth 35 km | |
| 4.8 | 55 km ESE of Koshima, Japan | 71 km / 44 mi | depth 35 km | |
| 4.9 | 97 km SE of Koshima, Japan | 63 km / 39 mi | depth 10 km | |
| 4.4 | 92 km NE of Tatsugō, Japan | 59 km / 37 mi | depth 35 km | |
| 4.5 | 59 km SE of Koseda, Japan | 86 km / 53 mi | depth 10 km | |
| 4.8 | 62 km ESE of Koseda, Japan | 91 km / 57 mi | depth 28 km | |
| 4.5 | 103 km S of Koshima, Japan | 12 km / 8 mi | depth 35 km | |
| 4.4 | 43 km SE of Koseda, Japan | 89 km / 55 mi | depth 27 km | |
| 4.5 | 59 km S of Koshima, Japan | 39 km / 24 mi | depth 46 km | |
| 4.6 | 161 km SSE of Koshima, Japan | 77 km / 48 mi | depth 10 km | |
| 4.3 | 81 km SSW of Yudomari, Japan | 45 km / 28 mi | depth 62 km | |
| 4.5 | 84 km E of Tatsugō, Japan | 99 km / 62 mi | depth 10 km | |
| 4.2 | 90 km SSE of Koshima, Japan | 5 km / 3 mi | depth 35 km | |
| 4.5 | 88 km NNE of Tatsugō, Japan | 72 km / 45 mi | depth 37 km | |
| 4.2 | 74 km ESE of Koseda, Japan | 93 km / 58 mi | depth 10 km | |
| 4.0 | 97 km S of Koshima, Japan | 9 km / 6 mi | depth 42 km | |
| 4.6 | 118 km ESE of Koshima, Japan | 94 km / 58 mi | depth 10 km | |
| 4.6 | 52 km SE of Koseda, Japan | 84 km / 52 mi | depth 42 km | |
| 4.3 | 101 km S of Yudomari, Japan | 41 km / 26 mi | depth 35 km | |
| 4.3 | 16 km ESE of Koshima, Japan | 86 km / 53 mi | depth 53 km | |
| 4.6 | 93 km S of Koshima, Japan | 6 km / 4 mi | depth 38 km | |
| 4.6 | 92 km S of Koshima, Japan | 7 km / 4 mi | depth 40 km |
USGS can revise magnitude and location after the first report. See magnitude vs intensity and aftershocks.