USGS Home
Contact USGS
Search USGS
Earthquake Hazards Program
Home
About Us
Contact Us
Earthquakes
Hazards
Learn
Prepare
Monitoring
Research
FAQs - California
Why are there so many earthquakes in the Geysers area in Northern California?
Will California eventually fall off into the ocean?
Why are there no faults in the Great Valley?
FAQ Categories
Common Myths about Earthquakes
Earthquakes, Faults, Plate Tectonics, Earth Structure
Current Earthquake Information
Measuring Earthquakes
Earthquake Effects & Experiences
Seismographs
Historic Earthquakes and Earthquake Statistics
Probabilities, Seismic Hazard & Earthquake Engineering
Nuclear Explosions and Seismology
Earthquake Preparedness
California
Other Resources
Did You Feel It?
PAGER
National Seismic Hazard Maps
US Seismic Design Tool
Faults
View All FAQs
Earthquakes
Past - Present - Future
Info by State
Info by Country/Region
Hazards
Faults
Hazard Maps & Data
Seismic Design
Seismic Analysis Tools
NSHM
Project
Learn
Earthquake Topics
FAQ
Earthquake Glossary
For Kids
Students & Teachers
Photos
Publications
Google Earth/KML Files
Prepare
How do I prepare?
A quake just happened…
Monitoring
ANSS
- United States
GSN
- World
NSMP
- Strong Motion
Network Operations
Crustal Deformation
Research
Projects
Scientific Data
Software
External Support
Accessibility
FOIA
Privacy
Policies and Notices
In partnership with
n
e
hrp