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-Earthquakes

Earth Science

QuestionAnswer
Where can earthquakes happen? Near the surface or far below
When do earthquakes happen? When pressure is released from grinding plates
What are the 3 types of body waves? S waves, P waves, and L waves
Which of the 3 body waves travel the slowest? The fastest? L waves travel the slowest. P waves move the fastest
What is the focus of an earthquake? Where the first motion of the earthquake occurs
What are seismographs and seismograms? Seismographs are the instruments located at or near the surface that record seismic waves. Seismograms are the print out of seismographs.
What does the Richter Magnitude Scale do? This scale measures the strength of the earthquake
What does the Mercalli Intensity Scale do? This scale tells us how much damage was done.
Which way do S waves move? Side to side
Which waves are the most destructive? L Waves
How many seismographs do you need to locate the epicenter of an earthquake? 3
What plate boundaries can earthquakes happen? Transform
What is the highest magnitude of the Richter Scale? 10
What is the study of earthquakes called? Seismology.
Why do earthquakes happen at at faults? Because the blocks of the Earth's crust that have broken slide relative to one another.
True or False: A 2.0 earthquake can't be detected by a seismograph FALSE
What year was the San Francisco earthquake? 1906
Where are intensity values the highest? At the earthquakes epicenter?
What is the simplest method to find an earthquake? The S-P time method
Which ways do P waves go? Back and forth
Created by: lauryngilliam123
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