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1) It directs the state's California Geological Survey agency (then known as the California Division of Mines and Geology) to compile detailed maps of the surface traces of known active faults. These maps include both the best known location where faults cut the surface and a buffer zone around the known trace(s); 2) It requires property owners ...
The California Geological Survey has had many names over its history. The original Geological Survey of California was replaced in April 1880 by the new California State Mining Bureau. This was renamed the Division of Mines in 1927. In 1962 the division's name was expanded to be California Division of Mines and Geology, a name that lasted until ...
Southern California lies at the southern end of this block, where the Southern California faults create a complex and even chaotic landscape of seismic activity. Seismic, geologic, and other data has been integrated by the Southern California Earthquake Center to produce the Community Fault Model (CFM) database that documents over 140 faults in ...
A map by the California Geological Survey shows faults near the Lake Almanor area in Plumas County, where a magnitude 5.5 earthquake struck Thursday, May 11, 2023, followed by a magnitude 5.2 ...
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 Rose Canyon Fault is a right-lateral strike-slip fault that runs in a north–south direction off the coast of San Diego County, California until it comes ashore near downtown San Diego. The fault is linked to the Newport–Inglewood Fault (NIFZ) in the north and either the Agua Blanca Fault or San Miguel–Vallecitos Fault Zone in the ...
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]
San Gregorio Fault. U.S. Geological Survey map showing the trace of the San Gregorio Fault in yellow, lower center. The San Gregorio Fault is an active, 209 km (130 mi) long fault located off the coast of Northern California. The southern end of the fault is in the Pacific Ocean just south of Monterey Bay, and the northern end is about 20 km ...