The Great Central U.S. ShakeOut is an 11-state earthquake drill that occurs annually. More than 3,000,000 residents participate by taking a few minutes to "Drop, Cover and Hold On!"
Claude Walker | Bicentennial-By-Buttons
The Great Central U.S. ShakeOut is an 11-state earthquake drill that occurs annually. More than 3,000,000 residents participate by taking a few minutes to "Drop, Cover and Hold On!"
Claude Walker