Light earthquake
M4.5 Earthquake — 280 km WNW of Houma, Tonga
2026-09-20 15:33 UTC · -20.37°, -177.86°
A magnitude 4.5 (light) earthquake struck 280 km WNW of Houma, Tonga on 2026-09-20 15:33 UTC, at a depth of 513 km. See it live on Earth Live's real-time 3D globe.
M4.5
Magnitude
513 km
Depth
85 t
TNT equivalent
~92 km
Felt radius (est.)
Source: USGS event page. Energy and felt-radius figures are standard seismological estimates, not official assessments.