Earthquake! - The Event
Posted by: Groundspeak Premium Member Volcanoguy
N 44° 09.849 W 113° 52.092
12T E 270676 N 4894105
Quick Description: One of a group of three signs on the Double Springs Pass Road.
Location: Idaho, United States
Date Posted: 7/26/2011 9:11:06 PM
Waymark Code: WMC56Z
Published By: Groundspeak Premium Member muddawber
Views: 1

Long Description:
The second 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 October 28, 1983 earthquake.
Marker Name: The Event

Marker Type: Roadside

Marker Text:
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 quake.


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:
Date Logged Log User Rating  
Volcanoguy visited Earthquake! - The Event 9/24/2010 Volcanoguy visited it