Whole Lotta Shakin'
This year marks the 140th anniversary of a magnitude 7.0 earthquake on the Hayward Fault, which produces a large earthquake every—take a deep breath—130 to 140 years.
Number of major earthquake faults running through the East Bay.
Percent chance that an earthquake of magnitude 6.7 or larger will strike along any of these faults in the next 30 years.
Estimated loss in billions of dollars to homes and businesses if an 1868-like quake were to strike again.
Number of earthquakes in a 42-day swarm that struck Alamo from an unknown fault in 1990. The largest reached a magnitude of 4.4.
Number of years in millions that have passed since rocks beneath the Pacific Ocean rose above sea level from the movement of two tectonic plates, forming the ancestral landscape of today’s rolling East Bay hills.