Earthquake! - The Event

Earthquake! - The Event (HM22LV)

Location: Mackay, ID 83251 Custer County
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Country: United States of America
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N 44° 9.849', W 113° 52.093'

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There are no records from explorers' journals or pioneers' memories of earthquakes occurring in this area. Scientists have not detected activity in recent time. But, old fault scars indicate that earthquakes occurred before. Geologists recognized that these faults are still active and predicted that the earth's crust could break here again. And it did! - in the identical location of the last "prehistoric quake."
On Friday, October 28, 1983, the crust ruptured! The shock — registering 7.3 on the Richter Scale - spread 500 miles from the focal point, or "epicenter." You are looking at the scar, or "scarp," created by the
Thousand Springs Valley dropped about 7 1/2 feet while the Lost River Range rose about a foot - both in a tilted manner.
HM NumberHM22LV
Placed ByChallis National Forest
Marker ConditionNo reports yet
Date Added Tuesday, November 7th, 2017 at 10:01am PST -08:00
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Locationbig map
UTM (WGS84 Datum)12T E 270675 N 4894105
Decimal Degrees44.16415000, -113.86821667
Degrees and Decimal MinutesN 44° 9.849', W 113° 52.093'
Degrees, Minutes and Seconds44° 9' 50.94" N, 113° 52' 5.5800000000002" W
Driving DirectionsGoogle Maps
Area Code(s)208
Which side of the road?Marker is on the right when traveling West
Closest Postal AddressAt or near Forest Rd 116, Mackay ID 83251, US
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