L.A. Earthquake: Odds of a Stronger Follow-Up Temblor Diminish

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Any chance that Monday’s magnitude 4.4 temblor was a prelude to a larger, more powerful earthquake was reduced to 1% Tuesday morning.


An earthquake map from Caltech is shown after Monday’s earthquake. (Credit: KTLA)

The earthquake that struck in Encino at 6:25 a.m. — the most significant shake in Southern California since a 5.5 temblor hit Chino Hills in 2008 — surprised seismologists and Angelenos alike. It was followed by several aftershocks, the largest being a magnitude 2.7.


Seismologists had warned that there was a 5% chance the quake could be a foreshock, a prelude to a more powerful temblor along the little-noticed fault deep under the Santa Monica Mountains. That probability, however, would fall to 1% by Tuesday morning, they said.

Monday’s earthquake hit in the northern edge of the Santa Monica Mountains, an area responsible for the uplifting of the range over many thousands of years.

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