A Big Earthquake Could Strike The San Francisco Bay Area for the First Time in 11 Years

An earthquake swarm in San Ramon, California is not letting up as ground tremors continue to shake the residents living there, and new earthquake activity in Briones Regional Park and Vallejo, California indicate that a larger rupture (M5.0+) along the Franklin Fault is at a higher risk than normal for the days and weeks ahead. The Franklin Fault connects together the West Napa Fault and the Calaveras Fault, both of which have experienced magnitude 5.0 and greater earthquakes since the year 2000 (the only faults in the SF Bay Area to have done so), further suggesting that this final section of built up strain could release soon. Geophysicist Stefan Burns reports

California's BIG ONE ⚠️ Key Zones of Maximum M7.5+ Earthquake Potential:
   • California's BIG ONE ⚠️ Key Zones of Maxim...  
⚠️ Big Earthquake Risk in SF Bay Area is Rising As Earthquake Swarm Continues (Nov 20th 2025 video):    • ⚠️ Big Earthquake Risk in SF Bay Area is R...  

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Research:
2018- Kinematics of the 2015 San Ramon, California earthquake swarm: Implications for fault zone structure and driving mechanisms https://doi.org/10.1016/j.epsl.2018.0...

Data and Credit:
USGS Latest Earthquakes Map: https://earthquake.usgs.gov/earthquak...
Omni Earthquake Calculator: https://www.omnicalculator.com/other/...
Cumulative and Daily Seismic Energy Release San Ramon Graphic: https://x.com/StefanBurnsGeo/status/2...

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