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USGS map showing faults that span the Pacific–North America plate boundary. The Hayward Fault Zone is a right-lateral strike-slip geologic fault zone capable of generating destructive earthquakes. The fault was first named in the Lawson Report of the 1906 San Francisco Earthquake in recognition of its involvement in the earthquake of 1868. [1]
Calaveras Fault. The Calaveras Fault is a major branch of the San Andreas Fault System that is located in northern California in the San Francisco Bay Area. Activity on the different segments of the fault includes moderate and large earthquakes as well as aseismic creep. The last large event was the magnitude 6.2 1984 Morgan Hill event.
The 1868 Hayward earthquake occurred in the San Francisco Bay Area, California, United States on October 21. With an estimated moment magnitude of 6.3–6.7 and a maximum Mercalli intensity of IX ( Violent ), it was the most recent large earthquake to occur on the Hayward Fault Zone .
Technical. Length. 18,065 feet (5,506 m) long. Tunnel clearance. 9 feet (2.7 m) square. Claremont Tunnel, also known as the Claremont Water Tunnel is a utility tunnel in Alameda County, in the U.S. state of California [1] near the historic Claremont Hotel. The tunnel crosses the Hayward Fault and carries water for 800,000 EBMUD customers.
Of the six main faults evaluated in previous studies the Southern San Andreas fault remains the most likely to experience an M ≥ 6.7 earthquake in the next 30 years. The largest increase in such likelihood is on the Calaveras fault (see main faults map for location), where the mean (most likely) value is now set at 25%. The old value, of 8% ...
A map of the faults that run through Stanislaus County. No active faults are currently known to exist within the valley portion of the county, a 2017 version of the county’s hazard mitigation ...
The Hollywood fault is an active fault of approximately 9 miles (14 km) in length located along the northern edge of the Los Angeles basin. [1] It is part of a system of seismically active folds and faults that constitute the complex transition zone between the Transverse and Peninsular Ranges. The Malibu Coast—Santa Monica—Hollywood fault ...
The 1984 Morgan Hill earthquake (also known as the Halls Valley earthquake) [6] occurred on April 24 at 1:15 p.m. local time in the Santa Clara Valley of Northern California. The shock had a moment magnitude of 6.2 and a maximum Mercalli intensity of VIII ( Severe ). The epicenter was located near Mount Hamilton in the Diablo Range of the ...