Earthquake · Reviewed by USGS
M3.9 earthquake 18 km E of Ōarai, Japan
A magnitude 3.9 earthquake struck 18 km E of Ōarai, Japan at Sep 18, 2026, 21:15 UTC, at a depth of 43 km. The epicentre was 18 km (11 mi) E of Oarai.
Details
| Magnitude | 3.9 mwr |
|---|---|
| Time | Sep 18, 2026, 21:15 UTC |
| Depth | 43.4 km |
| Coordinates | 36.320, 140.790 |
| 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 | 2 km N of Honchō, Japan | 98 km / 61 mi | depth 90 km | |
| 4.4 | 100 km ESE of Takahagi, Japan | 89 km / 55 mi | depth 36 km | |
| 4.7 | 4 km SE of Narutō, Japan | 88 km / 55 mi | depth 67 km | |
| 4.3 | 3 km SSW of Funaishikawa, Japan | 25 km / 15 mi | depth 77 km | |
| 4.9 | 3 km WSW of Shibayama, Japan | 80 km / 50 mi | depth 73 km | |
| 4.5 | 25 km ESE of Iwaki, Japan | 82 km / 51 mi | depth 60 km | |
| 4.5 | 3 km ESE of Sugito, Japan | 98 km / 61 mi | depth 67 km | |
| 5.3 | 0 km NNE of Yōkaichiba, Japan | 72 km / 45 mi | depth 42 km | |
| 4.4 | 11 km S of Hasaki, Japan | 77 km / 48 mi | depth 35 km | |
| 4.9 | 5 km S of Sakai, Japan | 95 km / 59 mi | depth 69 km | |
| 4.4 | 2 km E of Omigawa, Japan | 54 km / 34 mi | depth 52 km | |
| 4.4 | 10 km S of Hasaki, Japan | 76 km / 47 mi | depth 52 km | |
| 4.4 | 8 km NNE of Ishige, Japan | 73 km / 45 mi | depth 67 km |
USGS can revise magnitude and location after the first report. See magnitude vs intensity and aftershocks.