Mountains Building
Earthquakes
Locating Quakes
volcanoes
100
What are mountains formed by magma that escaped from Earth's interior, then cooled?
volcanoes
100
The released energy travels in waves in all directions, including up to the surface. These waves are called ________.
seismic waves
100
The ______ of an earthquakes is the point underground where the earthquake begins.
focus
100
____is magma that reaches Earth surface.
lava
200
Magma plumes rising from the mantle create ________under some areas of the crust.
hot spots
200
An_______detects and measures the amount of ground motion during a quake.
seismograph
200
___________ is the amount of energy that an earth quake releases.
Magnitude
200
A_____________ has a gentle slope and is made almost entirely of layer of Lava.
shield volcano
300
A ________________is a mountain that from from a block of crust that is pushed upward or downward along a fault.
fault-block moutains
300
true or false. Most Reverse faults are small with blocks of rock moving down by just a meter or so.
false
300
The point on the surface directly above the focus is called the ___________?
epicenter
300
A ___________ is composed of alternating layers of lava and ash
composite volcano
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