M 5.7 earthquake – 121 km S of Lowell Point, Alaska
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Local time: Mar 27, 1964 · 19:46 (UTC-10)
ModerateShallow · 15 km
Reviewed by a seismologist
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- Magnitude
- 5.7moment magnitude (mw)
- Depth
- 15 kmShallow earthquake
- Epicenter
- 58.978, -149.409251 km from Anchorage
- Energy released
- 5.4 kilotons of TNTless than one Hiroshima bomb
- Felt reports
- —"Did You Feel It?" responses
- Shaking intensity
- —not estimated
- Aftershocks
- 3M2.5+ within 30 km, up to 60 days
- Significance
- 502USGS score, 0–1,000+
Not rare around here
An earthquake at least as strong struck within 300 km on Mar 28, 1964.
How strong was it?
Moderate earthquake. It released 5.4 kilotons of TNT, 11 times the energy of a magnitude 5.0. Bars use the magnitude scale: every step is about 32 times more energy.
Aftershocks
3 earthquakes of M2.5+ within 30 km in the 60 days after.
The strongest earthquakes within 300 km
Since 1900, around United States.
- 9.2 The 1964 Prince William Sound, Alaska Earthquake Mar 28, 1964
- 7.9 Kodiak Island region, Alaska Oct 9, 1900
- 7.1 1 km SE of Point MacKenzie, Alaska Nov 30, 2018
- 7.1 47 km ESE of Pedro Bay, Alaska Jan 24, 2016
- 7.0 153 km SE of Halibut Cove, Alaska Dec 23, 1906
- 7.0 52 km NE of Chenega, Alaska Jun 21, 1928
- 6.8 Southern Alaska Apr 27, 1933
- 6.8 4 km NE of Beluga, Alaska Oct 23, 1936