Whittier & Chino Faults


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The Chino Fault and Whittier Faults are the two upper

branches of the Elsinore Fault Zone, which is part of the

trilateral split of the San Andreas fault system.

 

Whittier Fault Starts at Hwy 91

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The Whittier fault is a right-lateral strike-slip fault that has
a slip rate of 2.5 to 3.0 millimeters (0.098 to 0.12 in) per year.

It is estimated that this fault is capable of producing
an earthquake with a magnitude of 6.0 to a 7.2 .

The Whittier fault is 25 miles long and runs along the
Chino Hills range between Chino Hills and Whittier.

Following earthquakes on Whittier fault:
7/8/1929 - magnitude 4.7
  6/15/1967 - magnitude 4.1
1/1/1976 - magnitude 4.2
  10/1/1987 - magnitude 5.8


 

Whittier Fault Crosses Carbon Canyon Road

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Whittier Fault Crosses Hwy 57

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Whittier Fault Crosses Brea Jr High

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Whittier Fault Splits and Ends

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Whittier Fault Splits and Ends

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Chino Fault Start

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The Chino fault is a right-lateral strike-slip fault that
has a slip rate of 1.0 millimeter (.03937 inch) per year.

It is estimated that this fault is capable of producing
an earthquake with a magnitude of 6.0 to a 7.0 .

The Chino Fault runs along the eastern Chino Hills range region,
from below the Prado Dam to the Los Serranos lake area in Chino Hills .

Is the Los Serranos lake a sag pond?

On 7/29/2008 a magnitude 5.4 earthquake occurred on the Chino fault.