At 5:12am on Wednesday, April 18, 1906, a portion of the seam between the two tectonic plates San Francisco rests on suddenly ruptured. The earth shook for 45 seconds, and the ensuing fire raged on ...

San Francisco - Earthquake & fire, 1906 "Ruins on Kearney St. near Post Office". Library of Congress. At 5:12 am on April 18, 1906, San Francisco residents were awakened by a 40-second tremor that ...

In 1906, there were no modern day sensors waiting to detect the exact location of what ... Check the Chronicle’s Earthquake Map & Tracker for details. A San Francisco State university ...