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Here's why experts are warning California about 'The Big One'

Scientists report that California fault lines are under the highest pressure seen in a millennium. Experts warn that a fault rupture in the Southland is overdue due to this accumulated stress. This situation has increased warnings regarding a potential major earthquake known as The Big One.

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New data shows the San Andreas fault has reached its highest stress levels in 1,000 years.

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  1. California Faults Reach Highest Stress Levels in 1,000 Years

    Scientists report that California fault lines are under the highest pressure seen in a millennium. Experts warn that a fault rupture in the Southland is overdue due to this accumulated stress. This situation has increased warnings regarding a potential major earthquake known as The Big One.

    What's confirmed:

    • California faults have reached their highest stress levels in 1,000 years.
    • The San Andreas fault is under more stress than it has been in 1,000 years.

    Still unconfirmed:

    • A Cascadia quake might trigger the San Andreas fault soon after.
    • A CSUB professor has urged Kern County to follow drop, cover and hold on guidance.
    • A fault rupture in the Southland is overdue.
    confidence 90%