1906 San Francisco earthquake

1906 San Francisco earthquake
Ruins in the vicinity of Post and Grant Avenue
Eureka
Dunsmuir
Chico
Truckee
Santa Rosa
Salinas
Bakersfield
Fresno
Paso Robles
Santa Monica
Indio
UTC time1906-04-18 13:12:27
ISC event16957905
USGS-ANSSComCat
Local dateApril 18, 1906 (1906-04-18)
Local time05:12:27 (PST)
Magnitude7.9 Mw
Depth5 mi (8.0 km)
Epicenter37°45′N 122°33′W / 37.75°N 122.55°W / 37.75; -122.55
FaultSan Andreas Fault
TypeStrike-slip
Areas affectedNorth Coast
San Francisco Bay Area
Central Coast
United States
Max. intensityMMI XI (Extreme)
TsunamiYes
Casualties700–3,000+

The 1906 San Francisco earthquake was a major earthquake which struck the coast of Northern California at 05:12 am Pacific Standard Time on Wednesday, April 18, 1906. With an estimated moment magnitude of 7.9 and a maximum Mercalli intensity of XI (Extreme), it created high-intensity shaking from Eureka on the North Coast to the Salinas Valley, an agricultural region to the south of the San Francisco Bay Area.

Extensive fires soon broke out in San Francisco and lasted for several days. More than 3,000 people died and over 80% of the city was destroyed. The event is remembered as the deadliest earthquake in the history of the United States. The death toll remains the greatest loss of life from a natural disaster in California's history and high on the list of worst American disasters, natural or man-made.