
The great San Francisco earthquake
Just after five in the morning on 18 April 1906, the San Andreas fault slipped along almost 300 miles of northern California. The shaking lasted under a minute, but broken gas mains and toppled chimneys started fires that burned across San Francisco for days.
At least 3,000 people died and more than half the city’s population lost their homes. Studying the torn ground afterwards, geologists developed the idea of elastic rebound, which still underpins how scientists explain earthquakes.
Read the full storyHistory & Timeline →Source: USGS: The Great 1906 San Francisco Earthquake ↗



















