Earthquakes
What is shallow-focus earthquakes
Solid volcanic ejecta
What is pyroclast
Study of the earth
What is geology
What is solid
What is the interior
Measures the damage an earthquake
What is modified Mercalli scale
strength of volcanic eruption measured by
What is Volcanic Explosivity Index (VEI)
Where does an earthquake begin
What is the hypocenter
The earth's outer layer made of solid rock
Seismology
What is the study of earthquakes
Large pieces of ejects formed when lava solidifies after being thrown high into the air
What is a volcanic bomb
What is catastrophic plate tectonics
Middle of the earth's 3 main layers
What is the mantle
Used to record earthquake vibrations
4/5 of the world's earthquakes occur where
What is a volcanic mountain
Mountain that appears to have formed when 2 adjacent tectonic plates push together
What is a folded mountain
Deposits of sand and mineral fragment that cover the earth's surface
What are sediments
Directly above where an earthquake begins
What is epicenter
Most reliable scale for measuring the energy released by an earthquake
What is moment magnitude
Most likely is the cause of a violent volcanic eruption
What is large amount of dissolved gas
Fault that occurs when rocks on one side are shoved over rocks on the other side
What is thrust fault
Center of the earth
Caused by sudden movements of rock beneath the earth's surface
What is a tectonic earthquake