[CEUS-earthquake-hazards] November 9, 1968 Illinois earthquake - "Did You Feel It?" site now open for business

[Oliver Boyd]

"Did you feel the November 9, 1968, M5.4 southern Illinois earthquake?  Do
you remember where you were and what happened?  Please tell us and share
this request with others.

In commemoration of the upcoming 45th anniversary of this important
earthquake, which was felt from Cleveland to Kansas City and Minneapolis to
Atlanta, the USGS established a "Did You Feel It" site for people to record
their shaking experience during this quake.

http://earthquake.usgs.gov/earthquakes/dyfi/events/us/19681109/us/index.html

The quake occurred at about 11 am local time.  Even more than 40 years after
this earthquake, geologists can learn from it.  The earthquake was widely
felt, and if you were living in the region at the time, it is scientifically
important to note that you did or did not feel it.  Your shaking experience
will be converted to an Intensity map and scientists will use this
information to strengthen a study of damage and intensity that was completed
soon after the earthquake by the U.S. Coast and Geodetic Survey and St.
Louis University.  

The website will ask for your zip code of where you were that day and the
address, if possible, on that day (not now).  This is needed only to help
identify the differences in earthquake shaking from location to location.
As you work your way through the website¹s queries, it will Œautomatically¹
measure scientific information about what you experienced.  This information
is very important to today¹s earthquake scientists.

Thank you for your help in this endeavor.

Robert A. Williams
U.S. Geological Survey
Central & Eastern U.S. Earthquake Program Coordinator
Geologic Hazards Science Center
1711 Illinois St
Golden, CO 80401
303-273-8636
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