Earthquake! - The Results
Posted by: Groundspeak Premium Member Volcanoguy
N 44° 09.846 W 113° 52.084
12T E 270687 N 4894099
Quick Description: One of a group of three signs on the Double Springs Pass Road.
Location: Idaho, United States
Date Posted: 7/26/2011 9:20:06 PM
Waymark Code: WMC571
Published By: Groundspeak Premium Member muddawber
Views: 1

Long Description:
The third of three signs about the Borah Peak Earthquake. The signs are located at a small interpretive site where the fault scarp from the earthquake crossed the Double Springs Pass Road. This sign is about the results of the October 28, 1983 earthquake.
Marker Name: The Results

Marker Type: Roadside

Marker Text:
*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 Porah Peak and Thousand Springs Valley will certainly slide further apart as more earthquakes rumble along this fault system.


County: Custer

Group Responsible for Placement: U.S. Forest Service

City: Not listed

Date Dedicated: Not listed

Marker Number: Not listed

Web link(s) for additional information: Not listed

Visit Instructions:
In your log, please say if you learned something new, and if you took any extra time to explore the area once you stopped at the historic marker waymark. If possible please post a photo of you OR your GPS at the marker location. Also if you know of any additional links not already mentioned about this bit of Idaho history please include that in your log.

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Recent Visits/Logs:
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Volcanoguy visited Earthquake! - The Results 9/24/2010 Volcanoguy visited it