Light earthquake
M4.6 Earthquake — 79 km E of Onagawa Chō, Japan
2026-08-04 14:00 UTC · 38.31°, 142.34°
A magnitude 4.6 (light) earthquake struck 79 km E of Onagawa Chō, Japan on 2026-08-04 14:00 UTC, at a depth of 40 km. See it live on Earth Live's real-time 3D globe.
M4.6
Magnitude
40 km
Depth
120 t
TNT equivalent
~449 km
Felt radius (est.)
Source: USGS event page. Energy and felt-radius figures are standard seismological estimates, not official assessments.