M7.8 Earthquake — 146 km ESE of Hihifo, Tonga

A magnitude 7.8 (major) earthquake struck 146 km ESE of Hihifo, Tonga on 1975-12-26 15:56 UTC, at a depth of 33 km. See it live on Earth Live's real-time 3D globe.

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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 60 earthquakes of magnitude 2.5 or more within 300 km.

Strongest recorded within 300 km since 1900:

• M8.1 — 1919 Tonga Earthquake · 1919-04-30
• M8.1 — 2009 Samoa Earthquake · 2009-09-29
• M8.0 — The 1917 Samoa-Tonga Earthquake · 1917-06-26

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

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