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Largest US Earthquakes

World's Largest Earthquakes

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Notable Idaho Earthquakes

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A chronological list of Idaho earthquakes, magnitude 6 and over.

Date Location Magnitude
November 10, 1884 Bear Lake 6.3
October 6, 1909 Northern Utah 6.0
May 13, 1916 Central Idaho (location uncertain) 6.0
March 12, 1934 Northern Utah 6.6
March 12, 1934 Northern Utah 6.0
July 12, 1944 15 Miles from Stanley 6.1
February 14, 1945 28 Miles from Stanley 6.0
November 23, 1947 58 Miles from Bozeman, MT 6.2
August 18, 1959 Hegben Lake, MT (earthquake) 7.5
August 18, 1959 Hegben Lake, MT (aftershock) 6.5
August 18, 1959 Hegben Lake, MT (aftershock) 6.0
August 18, 1959 Hegben Lake, MT (aftershock) 6.3
August 19, 1959 Hegben Lake, MT (aftershock) 6.0
March 28, 1975 56 Miles from Pocatello 6.0
October 28, 1983 Borah Peak, near Challis 7.3

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