July 14, 1940 Earthquake: Rat Islands, Aleutian Islands, Alaska, United States
A magnitude 7.4 earthquake struck Rat Islands, Aleutian Islands, Alaska, United States on July 14, 1940 at 05:52:53 UTC, 65 km below the surface.
Map
Where it struck, with the other significant earthquakes within 200 km. Circles are sized and colored by magnitude; select one for its page.
The earthquake
- Date
- July 14, 1940
- Time
- 05:52:53 UTC
- Place
- Rat Islands, Aleutian Islands, Alaska, United States
- Magnitude
- 7.4 (mb)
- Focal depth
- 65 km (40 mi)
- Tsunami
- None recorded
- Epicenter
- 52.000° N, 178.200° E
- Country
- United States
The toll
The record gives no deaths, injuries or damage for this earthquake.
Other significant earthquakes nearby
Within 200 km, the deadliest first.
- August 17, 1906, Rat Islands, Aleutian Islands, Alaska, United States
- June 23, 2014, Aleutian Islands, Alaska, United States
- November 6, 1971, Rat Islands, Aleutian Islands, Alaska, United States
- February 4, 1965, Rat Islands, Aleutian Islands, Alaska, United States
- November 17, 2003, Rat Islands, Aleutian Islands, Alaska, United States
- August 2, 2007, Aleutian Islands, Alaska, United States
- March 30, 1965, Rat Islands, Aleutian Islands, Alaska, United States
More
Significant earthquakes of 1940The 1900sEvery quake the USGS located in 1940Recent earthquakes near hereThis day in weather history
Sources
Significant earthquakes from NOAA’s National Centers for Environmental Information, Global Historical Hazard Database, cited as NCEI/WDS, doi:10.7289/V5PN93H7. Public domain. Read 2026-09-24. NCEI earthquake 3669.