M 8.1 earthquake – 4 km ESE of Cañete, Chile
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Local time: May 21, 1960 · 06:02 (UTC-4)
GreatShallow · 25 km
Reviewed by a seismologist
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- Magnitude
- 8.1moment magnitude (mw)
- Depth
- 25 kmShallow earthquake
- Epicenter
- -37.824, -73.3534.0 km from Cañete
- Energy released
- 21 megatons of TNTabout 1,420 × Hiroshima
- Felt reports
- —"Did You Feel It?" responses
- Shaking intensity
- 7.2max. instrumental (MMI)
- Aftershocks
- 18M2.5+ within 327 km, up to 60 days
- Significance
- 1,009USGS 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?
Great earthquake. It released 21 megatons of TNT, 44,668 times the energy of a magnitude 5.0. Bars use the magnitude scale: every step is about 32 times more energy.
Aftershocks
18 earthquakes of M2.5+ within 327 km in the 60 days after.
- 6.2 17 km SE of Arauco, Chile May 21, 1960
- 5.8 57 km SSW of Lebu, Chile May 22, 1960
- 5.8 30 km SE of Cañete, Chile May 22, 1960
- 7.1 26 km W of Angol, Chile May 22, 1960
- 6.8 22 km ESE of Cañete, Chile May 22, 1960
- 7.8 38 km WNW of Traiguén, Chile May 22, 1960
- 9.5 1960 Great Chilean Earthquake (Valdivia Earthquake) May 22, 1960
- 6.5 64 km WNW of Carahue, Chile May 23, 1960
- 6.4 9 km N of Traiguén, Chile May 23, 1960
- 6.2 22 km ESE of Cañete, Chile May 23, 1960
The strongest earthquakes within 300 km
Since 1900, around Chile.
- 9.5 1960 Great Chilean Earthquake (Valdivia Earthquake) May 22, 1960
- 8.8 2010 Maule, Chile Earthquake Feb 27, 2010
- 7.8 26 km WNW of San Carlos, Chile Jan 25, 1939
- 7.8 38 km WNW of Traiguén, Chile May 22, 1960
- 7.7 44 km SSE of Cañete, Chile May 10, 1975
- 7.6 23 km SE of Chiguayante, Chile May 6, 1953
- 7.4 124 km W of Lebu, Chile Feb 27, 2010
- 7.4 Off the coast of Araucania, Chile Nov 1, 1960