Today in Earthquake History

Today's Earthquake Fact:
The San Andreas fault is NOT a single, continuous fault, but is actually a fault zone made of many segments. Movement may occur along any of the fault segments along the zone at any time. The San Andreas fault system is more than 1300 km (800 miles) long, and in some spots, is as much as 16 km (10 miles) deep.

Year at a Glance

March

Note: All earthquake dates are UTC, not local time.

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Year	Location	Magnitude	Comment

1931	Managua, Nicaragua	6.0	The earthquake and fire destroyed much of the city of Managua. 2,500 dead. One of the world's deadliest earthquakes.

1983	Colombia	5.5	Between 250 and 350 people killed, many injured and extensive damage (VIII) in the Popayan area. Felt from Bogota to Pasto. From Significant Earthquakes of the World, 1983.

1986	Central California	5.7	Six people were treated for minor injuries. Slight damage (VI) in the Fremont area and power outages in parts of Fremont and San Jose. Felt (V) at many cities in the southern San Francisco Bay area including Alameda, Cupertino, Milpitas, Mountain View, Palo Alto, Pleasanton, Redwood City, San Jose, San Leandro, Santa Clara, Sunnyvale and Union City. Felt throughout much of central California from Santa Rosa to San Luis Obispo and east to Yosemite National Park. From Significant Earthquakes of the United States, 1986 - June 1989.

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