WorksheetsEarthquakes by Seymour Simon
Total questions: 11
Worksheet time: 6mins
Why are most earthquakes unknown to people?
They are too small to feel.
They are only felt in areas that are heavily populated.
They only happen in the ocean.
They only happen along the Pacific Ring of Fire.
Most earthquakes take place in the Earth's crust, a five-to thirty-mile deep layer of _________ that covers our planet.
magma
water
rock
soil
Weaker shocks, called _________, can follow an earthquake on and off for days or weeks.
strikes
aftershocks
sections
faults
Four out of five of the world's earthquakes take place along the rim of the Pacific Ocean known as:
the earthquake zone
the world earthquake zone
the Pacific Ring of Fire
the Strike-Slip Fault
The United States rides on the __________ plate.
North American
African
Antartic
Eurasian
Earthquakes can occur anywhere there are _______ in underlying rocks.
stresses
strings
snaps
magma
Scientists think that a huge, deadly earthquake will strike along the ________ Fault in the near future.
Eurasian
North American
Pacific Ring of Fire
San Andreas
The 1906 San Francisco earthquake was on the of the most ________ earthquakes ever recorded, killing more than 3,000 people.
violent
minor
easy
unfelt
Which instrument is used to measure earthquake SHOCKS?
Richter Scale
Seismographs
Magnitude Meter
Mecali Intensity Scale
Earthquakes under the ocean's floor can cause:
tsunamis
more earthquakes
volcanoes
quicksand
If you are indoors during an earthquake you should:
Get away from windows and get under a table
Go outside
Stand near windows or glass
Ride the elevator
