M6.9 Earthquake — South Sandwich Islands region

A magnitude 6.9 (strong) earthquake struck South Sandwich Islands region on 1930-08-18 09:53 UTC, at a depth of 35 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 5 earthquakes of magnitude 2.5 or more within 300 km.

Strongest recorded within 300 km since 1900:

• M8.1 — 1929 South Sandwich Islands Earthquake · 1929-06-27
• M7.8 — South Sandwich Islands region · 1964-05-26
• M7.5 — South Sandwich Islands region · 2021-08-12

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