San Andreas Fault
transform — 1,200 km
The San Andreas Fault is a 1,200 km transform plate boundary that runs through California, marking the junction between the Pacific and North American plates. It is one of the most studied and most dangerous fault systems in the world, capable of producing catastrophic earthquakes.
Type
transform
Length
1,200 km
Countries
1
Cities at Risk
4
Risk Assessment
72% chance of M6.7+ before 2043
Last Major Earthquake
M7.9 — San Francisco (1906-04-18)
Affected Countries
Cities Near This Fault
Data: USGS Earthquake Hazards Program