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Health & Science2h 27m ago

Tectonic stress along the San Andreas and San Jacinto fault systems in Southern California has now reached, and in some places exceeded, the highest levels seen in the past 1,000 years.

Southern California, U.S.

Who
Liliane Burkhard, researchers from University of Hawaiʻi at Mānoa, Northern Arizona University, University of Bern, U.S. Geological Survey and University of California, San Diego
What
Tectonic stress along the San Andreas and San Jacinto fault systems in Southern California has now reached, and in some places exceeded, the highest levels seen in the past 1,000 years.
When
Wed, 10 Jun 2026 21:07:00 GMT · 2h 27m ago
Where
Southern California, U.S. ·
Why
The study found that stress levels on multiple fault segments are now at or above the highest values seen in the past millennium, leading to a critically loaded state.
The Frontline Impact

How this affects you

This unprecedented stress accumulation could lead to a large rupture involving both fault systems, potentially causing significantly more damage than a single-fault event, especially in densely populated areas like Los Angeles.

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