Light earthquake
M4.9 Earthquake — 85 km W of Hihifo, Tonga
2026-09-20 00:33 UTC · -15.96°, -174.60°
A magnitude 4.9 (light) earthquake struck 85 km W of Hihifo, Tonga on 2026-09-20 00:33 UTC, at a depth of 10 km. See it live on Earth Live's real-time 3D globe.
M4.9
Magnitude
10 km
Depth
338 t
TNT equivalent
~810 km
Felt radius (est.)
Source: USGS event page. Energy and felt-radius figures are standard seismological estimates, not official assessments.