California at higher risk of major earthquake in next 30 years

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California At Higher Risk Of Major Earthquake In Next 30 Years

The US Geological Survey has updated their California earthquake outlook and says that the chance of a major earthquake hitting in the next 30 years is greater than previously thought.

Recent analysis shows that there's a 7 percent likelihood of a quake with a magnitude of 8 or greater hitting in the coming decades.

A previous assessment identified the risk at a percentage of approximately 4.7.

The fault causing the most concern is the San Andreas, particularly the portion of it that runs through the southern regions of the state.

Though it has been relatively inactive during the past century, Tom Jordan, the director of the Southern California Earthquake Center, told CBS Los Angeles, "...We know that tectonic forces are continually tightening the springs of the San Andreas fault system, making big quakes inevitable."

Massive activity in the state generally occurs once every several hundred years, and a large part of the reason for the change in when it's due to happen next is the introduction of simultaneous fault activity into the prediction model.

Exactly when either a network or individual lines will become active is unknown, but the state is continuing to make improvements to its advance alert system.

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