1962 Cache Valley earthquake
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  Salt Lake City  | |
| UTC time | 1962-08-30 13:35:28 |
|---|---|
| ISC event | 875249 |
| USGS-ANSS | ComCat |
| Local date | 30 August 1962 |
| Local time | 06:35 a.m. MDT |
| Magnitude | ML5.9 |
| Depth | 10 kilometres (6.2 mi) |
| Epicenter | 41°55′01″N 111°43′59″W / 41.917°N 111.733°W |
| Fault | East Cache Fault |
| Areas affected | Utah, Idaho |
| Max. intensity | MMI VII (Very strong) |
| Casualties | 1+ injured |
The 1962 Cache Valley earthquake was a magnitude Mw5.9 earthquake that occurred on Thursday, 30 August 1962 at approximately 6:35 AM MT north of Richmond, Utah, United States, at the border between Utah and Idaho. No people were killed in the quake. The quake caused between US $1–2 million in damage.
Magnitude and intensity
The 1962 Cache Valley earthquake occurred on Thursday, 30 August 1962 at 6:35 AM MT at the border of Utah and Idaho, north of Richmond, Utah in the United States.[1] In addition to Utah and Idaho, the quake was felt in Colorado, Montana, Nevada, and Wyoming.[1][2]
There is disagreement on the size of this earthquake. The United States Geological Survey report shows a magnitude Mw5.9,[3] and the report from the Intermountain Seismic Belt Historical Earthquake Project at the University of Utah shows a magnitude of Mw5.7.[4][1] At least one news outlet stated the University of Utah recorded the quake as being a magnitude Mw 5.5.[2] The Mercalli intensity was reported as VII (Very Strong).[5]