M7.7 Earthquake — South Indian Ocean

A magnitude 7.7 (major) earthquake struck South Indian Ocean on 1928-03-09 18:05 UTC, at a depth of 15 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 1 earthquake of magnitude 2.5 or more within 300 km.

Strongest recorded within 300 km since 1900:

• M7.5 — South Indian Ocean · 1939-03-21
• M7.0 — South Indian Ocean · 1999-11-15
• M6.7 — South Indian Ocean · 1928-02-07

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