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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 August 2006, when the state legislature renamed the division the ...
Shortly after statehood, the California state government appointed its first State Geologist and began commissioning geologic surveys of its own. The state appointed John B. Trask to the position of State Geologist, and he served from 1850 to 1856. He compiled a report titled "On the Geology of the Sierra Nevada, or California Range."
"Map of faults in southern California," By Natural Hazards Mission Area Photographer, Kate Scharer, USGS Sources/Usage, Public Domain Accessed 10-20-2024 You cannot overwrite this file. File usage
In 2015, the USGS unveiled the topoView website, a new way to view their entire digitized collection of over 178,000 maps from 1884 to 2006. The site is an interactive map of the United States that allows users to search or move around the map to find the USGS collection of maps for a specific area.
The probability of a serious earthquake on various faults has been estimated in the 2008 Uniform California Earthquake Rupture Forecast. According to the United States Geological Survey, Southern California experiences nearly 10,000 earthquakes every year. [3] Details on specific faults can be found in the USGS Quaternary Fault and Fold Database.
Map of California topography and geomorphic provinces California's major mountain ranges. California is a U.S. state on the western coast of North America.Covering an area of 163,696 sq mi (423,970 km 2), California is among the most geographically diverse states.
This map of United States water resource subregion hydrologic units updated boundaries to include the ocean as well as the portions of the basins that cross international borders For the use of hydrologists, ecologists, and water-resource managers in the study of surface water flows in the United States, the United States Geological Survey ...
According to the USGS, "ShakeMaps provide near-real-time maps of ground motion and shaking intensity following significant earthquakes. These maps are used by federal, state, and local organizations, both public and private, for post-earthquake response and recovery, public and scientific information, as well as for preparedness exercises and ...