San Andreas Fault

Pacific plate boundary

The San Andreas Fault is a major geological fracture running roughly 800 miles through California, where the Pacific and North American tectonic plates grind past each other.

It's responsible for California's earthquake activity, including the devastating 1906 San Francisco quake.

Scientists monitor the San Andreas Fault for signs of seismic stress.

seismology

earthquakes

Sudden ground movement

aftershocks · Richter scale · seismograph · liquefaction · shockwaves · P-waves · S-waves · hypocenter · foreshocks · seismometer

tectonics

strike-slip

Horizontal fault motion

crust · tectonic movement

geography

California

West coast megastate

Coachella Valley · San Bernardino · Palm Springs · Central California

disaster

catastrophe

Devastating, large-scale misfortune

casualties · building codes · insurance · property damage · infrastructure collapse · fire · recovery · emergency response · risk assessment

Categories
Opposites
tectonic boundary type

San Andreas Faultsubduction zone

Where one plate slides under another

Mariana Trench · East African Rift · Ring of Fire

geological stability

San Andreas FaultCanadian Shield

Ancient exposed continental crust

craton

geological feature type

San Andreas Faultvolcanic arc

Curved line of volcanoes

hotspot · Ring of Fire · Hawaiian Islands · Mount St. Helens · Yellowstone Caldera

Family

Andreas, fault, faults, faulted, faulting, faultless, faulty, faultily, faultiness

Familiarity
Top 200,000
Profile
Mostly American · Timeless · Concrete · Everyday, not technical · Rated G