Earthquake · Reviewed by USGS

M4.1 earthquake 154 km SE of Itoman, Japan

A magnitude 4.1 earthquake struck 154 km SE of Itoman, Japan at Aug 9, 2025, 17:54 UTC, at a depth of 10 km. The epicentre was 151 km (94 mi) SE of Yaese.

Details

Magnitude	4.1 mb
Time	Aug 9, 2025, 17:54 UTC
Depth	10.0 km
Coordinates	25.055, 128.659
Felt reports	0
Tsunami flag	None
Source	USGS event page

Fig. 1The epicentre and other earthquakes within 100 km, since the day before

01 — Nearby

Nearest cities

02 — Around it

Other earthquakes within 100 km

Other earthquakes within 100 km since the day before this event
Magnitude	Location	Distance	Depth	Time
4.6	130 km SE of Itoman, Japan	24 km / 15 mi	depth 10 km	Sep 30, 21:11 UTC
4.1	135 km SE of Itoman, Japan	20 km / 12 mi	depth 10 km	Sep 30, 17:59 UTC
4.4	145 km S of Itoman, Japan	90 km / 56 mi	depth 10 km	Aug 15, 06:58 UTC
4.1	142 km SSE of Itoman, Japan	66 km / 41 mi	depth 10 km	Aug 4, 05:49 UTC
4.4	123 km S of Itoman, Japan	77 km / 48 mi	depth 10 km	Jun 19, 19:41 UTC
4.9	121 km SSE of Itoman, Japan	65 km / 40 mi	depth 10 km	Jun 19, 19:36 UTC
4.4	131 km SSE of Itoman, Japan	62 km / 39 mi	depth 10 km	Apr 22, 23:13 UTC
4.5	78 km SE of Katsuren-haebaru, Japan	100 km / 62 mi	depth 10 km	Apr 7, 20:05 UTC
4.4	136 km SSE of Itoman, Japan	51 km / 32 mi	depth 10 km	Feb 23, 15:04 UTC
4.3	128 km SSE of Itoman, Japan	74 km / 46 mi	depth 10 km	Feb 23, 06:57 UTC
5.5	95 km SE of Katsuren-haebaru, Japan	79 km / 49 mi	depth 10 km	Feb 12, 21:48 UTC
4.3	77 km SE of Katsuren-haebaru, Japan	96 km / 60 mi	depth 10 km	Sep 10, 12:15 UTC
4.3	63 km SSE of Itoman, Japan	94 km / 59 mi	depth 13 km	Sep 6, 22:12 UTC

USGS can revise magnitude and location after the first report. See magnitude vs intensity and aftershocks.