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The United States Geological Survey (USGS) placed the hypocenter's geographical coordinates at and at a depth of 11.31 miles (18.20 km). [9] Measuring M w 6.7, it was the largest earthquake recorded in the Los Angeles area since the 1971 San Fernando earthquake (M w 6.7). However, unlike the Northridge earthquake, the San Fernando shock ...
The Northridge Blind Thrust Fault (also known as the Pico Thrust Fault) is a thrust fault that is located in the San Fernando Valley area of Los Angeles.It is the fault that triggered the M w 6.7 1994 Northridge earthquake which caused $13–50 billion in property damage (equivalent to 24–93 billion today) and was one of the costliest natural disasters in U.S. history.
Simplified fault map of southern California The faults of Southern California viewed to the southeast, as modeled by the Southern California Earthquake Center. Highlighted in purple are the San Andreas Fault (left) and Santa Monica Bay complex (right). The foreground is in the Santa Barbara Channel, the east-trending zone marks the Transverse Range
A building with a weak first story collapsed on cars during the 1994 Northridge earthquake. (U.S. Geological Survey)
The United States typically has around 63 earthquakes between magnitude 5.0 and 5.9 each year, according to the U.S. Geological Survey, about five between 6.0 and 6.9 and fewer than one between 7. ...
The National Map Corps consists of volunteers who devote some of their time to provide cartographic information to the U.S. Geological Survey. The only requirements to participate are having access to the Internet and a current familiarity with the area being mapped. [6] This data is used to update The National Map.
U.S. Geological Survey National Center visitor entrance in 2011. The approximately 1,000,000 sq. ft., 1,200 foot long U.S. Geological Survey National Center building sits on a 105-acre site and is divided into three main sections—the agency administration offices, the laboratories, and the map reproduction area.
The effects, however, would be catastrophic: It could kill far more people — 3,000 to 18,000 people, according to the U.S. Geological Survey and the Southern California Earthquake Center. And ...