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The 1971 San Fernando earthquake (also known as the 1971 Sylmar earthquake) occurred in the early morning of February 9 in the foothills of the San Gabriel Mountains in Southern California. The unanticipated thrust earthquake had a magnitude of 6.5 on the M s scale and 6.6 on the M w scale, and a maximum Mercalli intensity of XI (Extreme).
This is a list of earthquakes in 1971. Only magnitude 6.0 or greater earthquakes appear on the list. Lower magnitude events are included if they have caused death, injury or damage. Events which occurred in remote areas will be excluded from the list as they wouldn't have generated significant media interest. All dates are listed according to ...
The earliest known earthquake in the U.S. state of California was documented in 1769 by the Spanish explorers and Catholic missionaries of the Portolá expedition as they traveled northward from San Diego along the Santa Ana River near the present site of Los Angeles. Ship captains and other explorers also documented earthquakes.
Measuring M w 6.7, it was the largest earthquake recorded in the Los Angeles area since the 1971 San Fernando earthquake (M w 6.7). However, unlike the Northridge earthquake, the San Fernando shock occurred on a north–northeast dipping thrust fault beneath the San Gabriel Mountains.
Most of the 33 buildings are in the Los Angeles Basin, which has been spared the strongest shaking of L.A. County’s two most destructive earthquakes since World War II — the magnitude 6.6 ...
Los Angeles earthquake could refer to: 1933 Long Beach earthquake; 1952 Kern County earthquake; 1971 San Fernando earthquake; 1987 Whittier Narrows earthquake; 1991 Sierra Madre earthquake; 1992 Landers earthquake; 1994 Northridge earthquake; 2008 Chino Hills earthquake
The $2-million project, approved by the Los Angeles County Board of Supervisors, is scheduled to begin in December and be completed around June. Initial earthquake retrofit approved for historic L ...
The magnitude 7.0 earthquake that rattled a large swath of Northern California likely increased spawning activity in fish to protect their population.