M 7.1 earthquake – Fox Islands, Aleutian Islands, Alaska
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Local time: Dec 31, 1901 · 20:52 (UTC+11:49)
Major
Reviewed by a seismologist
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- Magnitude
- 7.1surface-wave magnitude (ms)
- Depth
- —
- Epicenter
- 51.450, -171.0201,620 km from Anadyr
- Energy released
- 674 kilotons of TNTabout 45 × Hiroshima
- Felt reports
- —"Did You Feel It?" responses
- Shaking intensity
- —not estimated
- Aftershocks
- 0M2.5+ within 84 km
- Significance
- 776USGS 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?
Major earthquake. It released 674 kilotons of TNT, 1,413 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 United States.
- 8.0 1986 Atka, Alaska Earthquake May 7, 1986
- 7.8 81 km E of Nikolski, Alaska Jul 2, 1965
- 7.8 234 km SSW of Nikolski, Alaska Mar 7, 1929
- 7.4 133 km WNW of Nikolski, Alaska Apr 18, 1916
- 7.3 Fox Islands, Aleutian Islands, Alaska Jun 24, 2011
- 7.1 58 km WNW of Atka, Alaska Feb 28, 1970
- 7.1 35 km SW of Nikolski, Alaska Mar 11, 1957
- 7.0 101 km SW of Atka, Alaska Aug 30, 2013