California earthquake fault map
Choose the interactive fault map or download kml files and gis shapefiles from the links on the page. This updated map of california fault lines shows 50 new california surface faults.
List Of Earthquakes In California Wikipedia
San andreas fault line map the san andreas runs deep near and under some of california s most populated areas the cities of desert hot springs san bernardino wrightwood palmdale gorman frazier park daly city point reyes station and bodega bay rest on the san andreas fault line.
Information available includes the age of the most recent activity on each fault segment surface rupture areas and whether or not the faults are visible at the surface. The california geological survey s interactive map allows users to identify the location and classification of faults throughout california. Most californians live within 30 miles of an active fault 15 700 known faults in california and scientists continue to discover new ones select your county from the dropdown menu above or click on your county on the california map to the left to learn more about california earthquake risk and faults near you. These quake hazard regions have been discovered over the last two decades and will help educate the public and aid in planning and quake preparadness.
Code is a three integer field that defines certainty or reliability of field mapping integer one time of most recent. Fault and section are lower case. Bold numbers show the average time between big earthquakes determined at paleoseismic sites triangles. Skip to main content.
Thick red lines show the extent of historic ruptures. An online map of faults that includes california is in the faults section of the earthquake hazards program website. A hypothetical magnitude 7 earthquake along the san francisco bay area s hayward fault would cause severe violent or extreme shaking along large swaths of the east bay north bay and silicon. Northern california area faults earthquake fault map resources usgs past significant earthquakes archive rodgers creek healdsburg and maacama faults list of the strongest california earthquakes fault attributes key name is an 80 character field for the name of the fault including section name i e denali fault holitna section.
Detailed description map of faults in southern california. This new map is a reminder of california s quake risks.
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