M 5.4 earthquake – Mozambique Channel
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Local time: Jun 21, 1982 · 02:52 (UTC+3)
ModerateShallow · 10 km
Reviewed by a seismologist
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- Magnitude
- 5.4body-wave magnitude (mb)
- Depth
- 10 kmShallow earthquake
- Epicenter
- -20.601, 41.007276 km from Morombe
- Energy released
- 1.9 kilotons of TNTless than one Hiroshima bomb
- Felt reports
- —"Did You Feel It?" responses
- Shaking intensity
- —not estimated
- Aftershocks
- 0M2.5+ within 30 km
- Significance
- 449USGS score, 0–1,000+
The strongest within 300 km on record
No earthquake this strong has been recorded this close since our catalog begins in 1900.
How strong was it?
Moderate earthquake. It released 1.9 kilotons of TNT, 4 times the energy of a magnitude 5.0. Bars use the magnitude scale: every step is about 32 times more energy.
The strongest earthquakes within 300 km
Since 1900, around Madagascar.
- 5.0 Mozambique Channel Nov 6, 1980
- 4.8 285 km W of Morondava, Madagascar Jul 4, 2023
- 4.7 Mozambique Channel Aug 10, 2012
- 4.7 Mozambique Channel Aug 13, 2006
- 4.6 Mozambique Channel May 30, 2014
- 4.6 Mozambique Channel Apr 13, 1999
- 4.5 Mozambique Channel Mar 28, 2026
- 4.5 Mozambique Channel Sep 16, 2016