How long did the 1971 Sylmar earthquake last?
about 60 seconds
The San Fernando earthquake occurred on February 9, 1971, at 6:00:41 am Pacific Standard Time (14:00:41 UTC) with a strong ground motion duration of about 12 seconds as recorded by seismometers, although the whole event was reported to have lasted about 60 seconds.
How big was Sylmar Earthquake 1971?
magnitude 6.6
The magnitude 6.6 Sylmar earthquake that shook Southern California on Feb. 9, 1971, caused significant damage and 64 deaths.
Was there an earthquake in 1971?
On February 9, 1971 at 6:01 am PST, a devastating M6. 6 earthquake struck the densely populated metropolitan area of Los Angeles, leaving death and destruction in its wake. The epicenter of the earthquake was in the vicinity of Magic Mountain, about six miles northeast of Sylmar, at a depth of about seven miles.
What time was the 1971 Sylmar earthquake?
about 6:01 a.m.
9, 1971, magnitude-6.5 quake struck at about 6:01 a.m. Its origin was in the foothills of the San Gabriel Mountains north of Los Angeles, but shaking was felt across a widespread part of the San Fernando Valley. It was the most powerful in nearly four decades in Los Angeles.
Is Sierra Madre fault active?
The Sierra Madre fault zone is a south-vergent, active reverse fault that accommodates shortening between basins on the northern margin of the Los Angeles region and the San Gabriel Mountains.
What was the strongest earthquake in California?
7.3 – Jan. 31, 1922. West of Eureka.
When was the worst earthquake in LA?
On January 17, 1994, an earthquake rocks Los Angeles, California, killing 54 people and causing billions of dollars in damages. The Northridge quake (named after the San Fernando Valley community near the epicenter) was one of the most damaging in U.S. history.
When was the Sylmar earthquake?
February 9, 19711971 San Fernando earthquake / Start date
What day was the Sylmar earthquake?
Feb. 9, 1971
Vehicles sit smashed after the Feb. 9, 1971, Sylmar earthquake, which had a magnitude of 6.6.
How long did the Northridge earthquake last?
10–20 seconds
The earthquake occurred just after 4:30 am local time along a previously undiscovered blind thrust fault in the San Fernando Valley. Its epicentre was in Northridge, a suburb located about 20 miles (32 km) west-northwest of downtown Los Angeles. The major shock lasted 10–20 seconds and registered a magnitude of 6.7.
What is the safest place in an earthquake?
If you are able, seek shelter under a sturdy table or desk. Stay away from outer walls, windows, fireplaces, and hanging objects. If you are unable to move from a bed or chair, protect yourself from falling objects by covering up with blankets and pillows.
How many people died in the 1971 San Fernando earthquake?
People also ask, how long was the 1971 Sylmar earthquake? Note: The earthquake struck at 6:00:41 a.m., lasted about 60 seconds, killed 65 people (primarily in the San Fernando Valley) and caused more than half a billion dollars in damage to both valleys, including the collapse of the fairly new freeway bridges in the Newhall Pass.
When was the last big earthquake in California?
When was the last biggest earthquake in California? Ridgecrest earthquake, 2019. The magnitude 7.1 earthquake that hit near Ridgecrest on July 5 was the strongest to strike California in two decades.
What is the biggest earthquake in Los Angeles?
What is the biggest earthquake recorded in Los Angeles? On March 17, 2014, a magnitude 4.4 earthquake occurred about two miles south-southeast of Encino. The earthquake was felt in Los Angeles, Ventura, San Bernardino and Orange counties. This was the largest earthquake in Los Angeles since the aftershocks of the 1994 Northridge quake.
What happened on February 9, 1971?
February 9, 1971 (Tuesday) At exactly 41 seconds after 6:00 in the morning local time, the 6.5 M w Sylmar earthquake struck the Greater Los Angeles Area with a maximum Mercalli intensity of XI (Extreme) and lasted 12 seconds.