Earthquake! - The Results

Earthquake! - The Results (HM22LW)

Location: Mackay, ID 83251 Custer County
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Country: United States of America
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N 44° 9.84', W 113° 52.08'

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· The scarp before you extends for 21 miles, paralleling the mountain front. In some places, multiple scarps formed.
· Ground motion, or "ground roll," did $15,000,000 damage to roads and buildings in the Challis and Mackay areas.
· Boulders tumbled down mountains. Some struck homes around Challis 35 miles north.
· New springs - and craters called "sand boils" - erupted in the valley. The largest deluge of water ever recorded after an earthquake in the United States - some 400 billion gallons - gushed forth.
We know that identical earthquakes rocked this area in the past - as recently as a few thousand years ago. It will happen again! Scientist cannot say exactly when, but Borah Peak and Thousand Springs Valley will certainly slide further apart as more earthquakes rumble along this fault system.

For more information, stop at National Forest offices in Mackay and Challis
HM NumberHM22LW
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 270692 N 4894088
Decimal Degrees44.16400000, -113.86800000
Degrees and Decimal MinutesN 44° 9.84', W 113° 52.08'
Degrees, Minutes and Seconds44° 9' 50.4" N, 113° 52' 4.7999999999999" 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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