1945 – Central Idaho – M 6.0

Intermountain Seismic Belt Historical Earthquake Project

February 13, 1945 – Central Idaho – M 6.0

The second large earthquake to strike Central Idaho in less than a year, occurred Tuesday, February 13 at 8:01 p.m. (local time). The earthquake, located approximately 25 miles west northwest of Custer, Idaho, caused buildings and light fixtures to sway, and rattled dishes and window blinds. No injuries or significant damage were reported.

The earthquake was reported generally felt throughout central and north Idaho and southeastern Washington. Felt reports were received from the Idaho communities of Moscow, Boise, Lewiston, Star, Eagle, and Cascade; and from Spokane, Washington and Seattle, Washington.

Telephone switchboards at radio stations, fire stations, police departments and newspaper offices in Boise were flooded with calls.

One newspaper reported, in jest, that the earth tremors might be the result of comments made by Soviet Premier Joseph Stalin to British Prime Minister Winston Churchill and U.S. President Franklin D. Roosevelt during the Yalta Conference held in the Soviet Union, February 4-11, 1945.



For additional information about this earthquake:

Earthquake Summary 3D Newspaper Articles 3D Additional Resources 3D Blank Thumbnail

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ISB Hist EQ Proj

1944 – Central Idaho – M 6.1

Intermountain Seismic Belt Historical Earthquake Project

July 12, 1944 – Central Idaho – M 6.1

On Wednesday, July 12, 1944 at 12:30 p.m. (local time), a magnitude 6.1 earthquake occurred in the Central Idaho area, approximately 20 miles west of Custer, Idaho.

The shaking caused some individuals to flee homes and other buildings, but no injuries were reported.

There were reports of swaying buildings and light fixtures, moving furniture and stopped clocks. Some minor damage occurred from falling dishes.

The earthquake was reported felt in local cities of Boise, Nampa, Garden Valley and Idaho City, Weiser, Caldwell and Payette. Individuals in Juntura, Oregon; Ontario, Oregon; Spokane, Washington; and Helena, Montana also reported ground shaking.

In Idaho City, telephone lines were overwhelmed with calls inquiring if the shaking was due to explosions or bombs.



For additional information about this earthquake:

Earthquake Summary 3D Newspaper Articles 3D Additional Resources 3D Blank Thumbnail

For more information about this project:

ISB Hist EQ Proj