Major earthquake
M7.7 Earthquake — 133 km NE of Hihifo, Tonga
1981-09-01 09:29 UTC · -14.96°, -173.09°
A magnitude 7.7 (major) earthquake struck 133 km NE of Hihifo, Tonga on 1981-09-01 09:29 UTC, at a depth of 25 km. See it live on Earth Live's real-time 3D globe.
M7.7
Magnitude
25 km
Depth
5.4M t
TNT equivalent
V
Max intensity (MMI)
Source: USGS event page. The TNT equivalent is computed from the magnitude with the standard Gutenberg–Richter energy relation; all other figures are USGS's own.
This area's earthquake history
In the year before this quake, USGS recorded 61 earthquakes of magnitude 2.5 or more within 300 km.
Strongest recorded within 300 km since 1900:
- M8.1 — 2009 Samoa Earthquake · 2009-09-29
- M8.0 — The 1917 Samoa-Tonga Earthquake · 1917-06-26
- M7.8 — 146 km ESE of Hihifo, Tonga · 1975-12-26
More recent earthquakes
- M4.9 — Volcano Islands, Japan region
- M4.8 — 191 km ESE of Sarangani, Philippines
- M5.0 — 71 km E of ‘Ohonua, Tonga
- M4.5 — Kuril Islands
- M5.3 — central Mid-Atlantic Ridge
- M4.8 — 32 km SSE of Jurm, Afghanistan
- M5.0 — 295 km S of Burica, Panama
- M4.6 — 110 km S of Dampit, Indonesia
All earthquakes in the last 24 hours →
More live maps
Earthquakes todayHurricane trackerWeather warningsAurora forecastWildfire mapActive volcanoesISS tracker