Earthquakes

Earthquakes (HM22LU)

Location: Mackay, ID 83251 Custer County
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Country: United States of America
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N 44° 8.412', W 113° 54.282'

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Inscription
On October 28, 1983, a major earthquake fracture, 26 miles long and 7 miles deep, surfaced as Lost River Valley slid away from Mount Borah.

During that rock shift, Mount Borah's ridge front rose about 6 inches, while this valley subsided 9 feet. This kind of movement has been going on here for 10 to 20 million years as subsurface rock has been pulled apart during gradual but persistent range and valley building. You can drive to a spectacular fracture that shattered this side road 2 1/2 miles from here.
Details
HM NumberHM22LU
Tags
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Placed ByIdaho Department of Transportation
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 267664 N 4891547
Decimal Degrees44.14020000, -113.90470000
Degrees and Decimal MinutesN 44° 8.412', W 113° 54.282'
Degrees, Minutes and Seconds44° 8' 24.72" N, 113° 54' 16.92" W
Driving DirectionsGoogle Maps
Area Code(s)208
Which side of the road?Marker is on the right when traveling North
Closest Postal AddressAt or near 5907 US-93, Mackay ID 83251, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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