EQ Vocab
Smaller earthquakes after the mainshock
Aftershock
The instrument that records earthquakes
Seismograph
Type of wave that travels the fastest
P wave
True or False - Volcanoes release more gases the closer they are to erupting
True
Primary Earthquake
Main Shock
The recording that seismographs make
Seismogram
These waves are also known as secondary or sheer waves
S-Waves
False
Smaller earthquakes before an earthquake
Foreshock
The energy that is released from earthquakes
Seismic Waves
These waves shake the ground back and forth
P Waves
Explosive
Location on the surface of the earth directly above where the earthquake occurred
Epicenter
The name of the scale that measures the strength and size of earthquakes
Moment Magnitude Scale
These waves shake the ground perpendicular to the direction of the wave
S Waves
The effect that is caused when the magma moves up the chamber and changes the ground angle
Point below the earth's surface where the earthquake starts
Hypocenter
How much does the size of an earthquake change with each jump up on the magnitude scale?
Ten times
These waves only move through the crust and mantle, but not through the liquid core
S Waves
Rock debris, hot lava, ash and gas that flow along the ground at high speeds and destroy nearly everything in their path
Pyroclastic Flows