The Concord Fault in the San Francisco Bay Area is active and shifting, posing a severe threat of a potential earthquake of 6.7 magnitude or higher. The Madigan Avenue strand of the fault runs 12.4 miles through densely populated areas, including Walnut Creek and Concord, impacting over 300,000 residents. Long-held assumptions about the fault's location have changed, with the active section now approximately 1,300 feet west, affecting homes and schools. The gradual creep of the fault has caused visible damage in the surrounding infrastructure, raising concerns for the entire East Bay.
Seismologists now believe the fault lies about 1,300 feet west of where it was previously mapped, placing homes and an elementary school directly in harm's way.
Experts warn the entire East Bay is at risk, especially because the fault is now proven to be creeping in urban areas with no buffer zone or open space.
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