M7.6 Earthquake — 4 km WNW of Atenas, Costa Rica

A magnitude 7.6 (major) earthquake struck 4 km WNW of Atenas, Costa Rica on 1939-12-21 20:54 UTC, at a depth of 25 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 3 earthquakes of magnitude 2.5 or more within 300 km.

Strongest recorded within 300 km since 1900:

• M7.6 — 11 km ENE of Hojancha, Costa Rica · 2012-09-05
• M7.6 — 34 km S of Limón, Costa Rica · 1991-04-22
• M7.5 — Costa Rica · 1950-10-05

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