Search results
Results From The WOW.Com Content Network
1957 San Francisco earthquake: A magnitude 5.7 quake with an epicenter on the San Andreas fault in the ocean west of San Francisco and Daly City. 1989 Loma Prieta earthquake : About 40 kilometers (25 mi) were ruptured (although the rupture did not reach the surface) near Santa Cruz, California , causing 63 deaths and moderate damage in certain ...
The 1986 North Palm Springs earthquake occurred on July 8 at 02:20:44 local time with a moment magnitude of 6.0 and a maximum Mercalli Intensity of VII (Very strong).The shock occurred in a complex setting along the San Andreas Fault Zone where it bisects San Gorgonio Mountain and San Jacinto Peak at the San Gorgonio Pass and was the first in a series of three earthquakes that affected ...
The last big earthquake in this area on the San Andreas caused one part of the fault to move past the other by 12 to 14 feet, making it a likely magnitude 7.3 or 7.4 earthquake.
The broad context of the Ridgecrest earthquakes is the Eastern California Shear Zone (ECSZ), a seismically active region east of the southern segment of the San Andreas Fault (SAF) and largely coincident with the Mojave Desert, featuring multiple right-lateral strike-slip faults paralleling the SAF. [90]
In Southern California, the last major earthquake on the San Andreas fault was in 1857, estimated at somewhere around a magnitude 7.8. But even moderate quakes along the Puente Hills thrust fault ...
On October 17, 1989, at 5:04 p.m. local time, the Loma Prieta earthquake occurred at the Central Coast of California. The shock was centered in The Forest of Nisene Marks State Park in Santa Cruz County, approximately 10 mi (16 km) northeast of Santa Cruz on a section of the San Andreas Fault System and was named for the nearby Loma Prieta Peak in the Santa Cruz Mountains.
Studies of past earthquake traces on both the northern San Andreas Fault and the southern Cascadia subduction zone indicate a correlation in time which may be evidence that quakes on the Cascadia subduction zone may have triggered most of the major quakes on the northern San Andreas during at least the past 3,000 years or so. The evidence also ...
The San Andreas Fault (SAF) is the main plate boundary that defines the margin between the Pacific and North American plates in California. It is believed to have formed during the Oligocene. The fault has a length of 1,200 km (750 mi), [1] of which, it is visible for 1,005 km (624 mi) from the Salton Sea to Point Arena. [2]