30 Jun 2026, 12:39 UTC · Jun 30, 8:39 AM ET

M4.6 earthquake 161 km SSE of Koshima, Japan

A magnitude 4.6 earthquake struck 161 km SSE of Koshima, Japan at Jun 30, 8:39 AM ET, 10 km deep, light – felt by most people nearby, rattling windows, rarely damage.

M4.5 103 km S of Koshima, JapanM4.6 161 km SSE of Koshima, JapanM4.6 118 km ESE of Koshima, JapanM4.6 93 km S of Koshima, JapanM4.6 92 km S of Koshima, JapanM4.6 158 km SE of Koshima, JapanM4.8 112 km S of Koshima, JapanM4.8 139 km SSE of Koshima, JapanM4.9 97 km SE of Koshima, JapanM5.0 149 km E of Tatsugō, JapanM5.1 113 km S of Koshima, JapanM5.4 84 km S of Koshima, JapanM5.5 103 km NE of Tatsugō, Japan
under 33–44–55–66+
Magnitude4.6 mb
Time30 Jun 2026, 12:39 UTC
Location28.947°, 131.316° – 161 km SSE of Koshima, Japan
Depth10.0 km
Felt reports0
USGS eventus6000t96r
Within 100 km

Other earthquakes nearby this year

Mag.WhereWhen (ET)DepthFelt
5.5103 km NE of Tatsugō, Japan · PAGER greenFeb 4, 1:20 PM
254 d ago
29 km–
5.484 km S of Koshima, Japan · PAGER greenMar 21, 7:12 AM
209 d ago
22 km1 report
5.1113 km S of Koshima, JapanFeb 17, 9:27 PM
241 d ago
32 km1 report
5.0149 km E of Tatsugō, JapanApr 23, 6:52 PM
176 d ago
10 km–
4.997 km SE of Koshima, JapanAug 22, 10:56 AM
55 d ago
10 km–
4.8112 km S of Koshima, JapanOct 3, 2:05 AM
14 d ago
37 km–
4.8139 km SSE of Koshima, JapanNov 28, 5:40 PM
322 d ago
10 km–
4.6118 km ESE of Koshima, JapanApr 6, 9:14 AM
193 d ago
10 km–
4.693 km S of Koshima, JapanMar 23, 8:39 AM
207 d ago
38 km–
4.692 km S of Koshima, JapanMar 21, 7:53 AM
209 d ago
40 km–
4.6158 km SE of Koshima, JapanOct 18, 1:19 PM
363 d ago
10 km–
4.5103 km S of Koshima, JapanAug 4, 5:29 AM
73 d ago
35 km–
FAQ

About this earthquake

How strong was the 161 km SSE of Koshima, Japan earthquake?

Magnitude 4.6 (mb), light – felt by most people nearby, rattling windows, rarely damage. Depth 10 km.

Was it felt?

No felt reports have been submitted to the USGS so far.

Were there aftershocks?

No earthquakes within 100 km have followed so far in our records.

Earthquakes

More

Source: U.S. Geological Survey (USGS) earthquake catalog, real-time feeds and FDSN event service; magnitudes and locations are revised by seismologists for hours after an event. Times are Eastern (ET) unless marked UTC. Not an alert service: for warnings follow local authorities and tsunami centers.

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M4.6 earthquake 161 km SSE of Koshima, Japan — 77.today