Friday, 12 August 2016

Magnitude 5.1 Earthquake beneath Lake County, California.

The United States Geological Survey recorded a Magnitude 5.1 Earthquake at a depth of about 14.5 km about 19 km to the northeast of North Lake in Lake County, California,slightly before 6.00 pm local time on Tuesday 9 August 2016 (slightly before 3.00 am on Wednesday 10 August GMT). There are no reports of any damage or injuries relating to this quake, but people have reported feeling it across much of northern California.

 The approximate location of the 9 August 2016 Lake County Earthquake. Google.

California is extremely prone to Earthquakes due to the presence of the San Andreas Fault, a tectonic plate margin that effectively bisects the state. The west of California, including Santa Barbara and Los Angeles, is located on the Pacific Plate, and is moving to the northwest. The east of California, including Fresno and Bakersfield is on the North American Plate, and is moving to the southeast. The plates do not move smoothly past one-another, but constantly stick together then break apart as the pressure builds up. This has led to a network of smaller faults that criss-cross the state, so that Earthquakes can effectively occur anywhere.

 The extent of and movement on the San Andreas Fault. Geology.

Witness accounts of Earthquakes can help geologists to understand these events and the underlying structures that cause them. If you felt this quake (or if you were in the area but did not, which is also useful information) then you can report it to the United States Geological Survey here.

See also... 4.5 Earthquake in Lassen County, California.                                              The United States Geological Survey recorded a Magnitude 4.5 Earthquake at a depth of about 6.9 km about 30 km to the southeast of Janesville in Lassen County, California, at about... 4.1 Earthquake in Napa County, California.                                              The United States Geological Survey recorded a Magnitude 4.1 Earthquake at a depth of about 13 km about 6 km to the east of Yountville in Napa... killed in cliff collapse at Point Reyes National Seashore, California.                       A woman has died and her male companion has been severely injured following a cliff collapse at the Point Reyes National Seashore to the northwest of...
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