Light earthquake
M4.8 Earthquake — 43 km ESE of Koseda, Japan
2026-08-04 19:56 UTC · 30.21°, 131.05°
A magnitude 4.8 (light) earthquake struck 43 km ESE of Koseda, Japan on 2026-08-04 19:56 UTC, at a depth of 45 km. See it live on Earth Live's real-time 3D globe.
M4.8
Magnitude
45 km
Depth
239 t
TNT equivalent
~548 km
Felt radius (est.)
Source: USGS event page. Energy and felt-radius figures are standard seismological estimates, not official assessments.