4 Apr 2026, 10:36 UTC · Apr 4, 6:36 AM ET

M4.6 earthquake 27 km E of Onagawa Chō, Japan

A magnitude 4.6 earthquake struck 27 km E of Onagawa Chō, Japan at Apr 4, 6:36 AM ET, 82 km deep, light – felt by most people nearby, rattling windows, rarely damage.

M4.5 27 km SE of Ōfunato, JapanM4.5 27 km SE of Onagawa Chō, JapanM4.5 29 km S of Ōfunato, JapanM4.5 27 km SE of Kamaishi, JapanM4.6 27 km E of Onagawa Chō, JapanM4.6 54 km E of Namie, JapanM4.6 47 km SE of Onagawa Chō, JapanM4.7 42 km ENE of Namie, JapanM4.7 81 km SE of Ōfunato, JapanM4.8 65 km ESE of Ōfunato, JapanM5.0 61 km ESE of Ōfunato, JapanM5.1 35 km SSE of Onagawa Chō, JapanM6.7 41 km ESE of Ōfunato, Japan
under 33–44–55–66+
Magnitude4.6 mwr
Time4 Apr 2026, 10:36 UTC
Location38.422°, 141.767° – 27 km E of Onagawa Chō, Japan
Depth81.7 km
Felt reports0
USGS eventus6000smj7
Within 100 km

Other earthquakes nearby this year

Mag.WhereWhen (ET)DepthFelt
6.741 km ESE of Ōfunato, Japan · PAGER greenMay 15, 7:22 AM
154 d ago
42 km95 reports
5.135 km SSE of Onagawa Chō, JapanApr 1, 8:52 PM
198 d ago
49 km6 reports
5.061 km ESE of Ōfunato, JapanJul 2, 9:44 PM
106 d ago
30 km–
4.865 km ESE of Ōfunato, JapanMar 6, 3:31 PM
224 d ago
47 km–
4.742 km ENE of Namie, JapanMay 7, 7:31 PM
162 d ago
66 km1 report
4.781 km SE of Ōfunato, JapanOct 12, 11:25 PM
369 d ago
46 km2 reports
4.654 km E of Namie, JapanSep 14, 6:59 AM
32 d ago
55 km–
4.647 km SE of Onagawa Chō, JapanNov 30, 12:25 PM
320 d ago
55 km–
4.527 km SE of Ōfunato, JapanMay 26, 4:21 PM
143 d ago
81 km–
4.527 km SE of Onagawa Chō, JapanApr 12, 9:00 AM
187 d ago
78 km–
4.529 km S of Ōfunato, JapanDec 15, 9:45 PM
305 d ago
94 km–
4.527 km SE of Kamaishi, JapanNov 1, 10:44 AM
349 d ago
70 km–
FAQ

About this earthquake

How strong was the 27 km E of Onagawa Chō, Japan earthquake?

Magnitude 4.6 (mwr), light – felt by most people nearby, rattling windows, rarely damage. Depth 82 km.

Was it felt?

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

Were there aftershocks?

1 earthquakes within 100 km in the following two weeks are in our records, the strongest M4.5.

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 27 km E of Onagawa Chō, Japan — 77.today