How big was Sylmar Earthquake 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.
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 many people died in the Sylmar quake?
64 deaths
The magnitude 6.6 Sylmar earthquake that shook Southern California on Feb. 9, 1971, caused significant damage and 64 deaths.
How big was the San Fernando Valley earthquake?
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 was the worst earthquake in California history?
California’s Largest Recorded Earthquakes Since 1800, Ranked by Magnitude
| Magnitude | Date | Location |
|---|---|---|
| 7.9 | Jan. 9, 1857 | Fort Tejon |
| 7.8 | April 18, 1906 | San Francisco |
| 7.4 | Mar. 26, 1872 | Owens Valley |
| 7.4 | Nov. 8, 1980 | W. of Eureka* |
What caused the 1971 San Fernando earthquake?
The 1971 earthquake ruptured a subsection named the San Fernando Fault Zone, which extends from the western San Fernando Valley to Big Tujunga Wash, about 12 and a half miles (20 km) across. The San Fernando Fault is a thrust fault, which means a section of land above the fault moved up and over a region below it.
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.
What was the name of the 1972 earthquake?
1972 Nicaragua earthquake
The 1972 Nicaragua earthquake occurred at 12:29:44 a.m. local time (06:29:44 UTC) on December 23 near Managua, the capital of Nicaragua….1972 Nicaragua earthquake.
| Managua | |
|---|---|
| UTC time | 1972-12-23 06:29:44 |
| Magnitude | 6.3 Mw |
| Depth | 10 km (6.2 mi) |
| Epicenter | 12.18°N 86.22°W |