San Andreas Fault Quiz

What is the length of the San Andreas Fault?

• 1000 miles

• 800 miles

• 1200 miles

• 500 miles

How many large earthquakes have occurred along the San Andreas Fault since records began?

• 10

• 13

• 8

• 5

What was the magnitude of the great San Francisco earthquake of 1906?

• 6.5

• 7.2

• 7.8

• 8.5

What did the Native American myths believe caused earthquakes?

• Underground explosions

• Battle between warring spirits

• Tectonic plate movements

• Volcanic eruptions

Who was asked to investigate the cause of the 1906 San Francisco earthquake?

• Mark Zoback

• Ken Hudnut

• Andrew Lawson

• Charlie Paull

What evidence did Andrew Lawson find that led to the discovery of the San Andreas Fault?

• Rotated block

• Buckled roads

• Twisted rail tracks

• Torn picket fence

What is the name of the process where the Pacific Ocean plate sinks beneath North America?

• Uplift

• Deposition

• Erosion

• Subduction

What is the average speed at which the land is moving along the San Andreas Fault?

• 4 inches per year

• 3 inches per year

• 2 inches per year

• 1 inch per year

What is the purpose of radiocarbon dating in the investigation?

• To analyze the composition of rocks

• To identify the location of the San Andreas Fault

• To measure the speed of plate movement

• To determine the age of ancient earthquakes

What evidence in the Carrizo Plain reveals the movement of the San Andreas Fault?

• Burned vegetation

• Bends in a riverbed

• Collapsed cliffs

• Dried up pond