Any shaking of the ground measurable by seismic instruments is called an
What is an earthquake
This instrument simply detects earth waves.
What is a seismometer.
What is Mean Sea Level or MSL.
After an eruption the movement of hot, solid, volcanic particles suspended in steam is a _________ ________?
What is pyroclastic flow.
The color of a mineral's powder is its?
What is streak.
Tectonic plates that are spreading apart from each other are called? (DD)
What are diverging or divergent.
Most major faults in the United States are found in this type of geography.
What are mountain ranges.
A seamount is an underwater ______________? (DD)
What is volcano
Most of the active volcanoes in the world can be found under ____ _____?
What is near convergent tectonic boundaries
This describes the way a mineral reflects light from its surface?
What is luster.
Tectonic plates that move toward each other at a boundary are called?
What are converging or convergent.
These shocks may come as a surprise for hours or days after a major quake.
What are aftershocks.
What are plutons.
Which of the following terms is not used to describe a volcanoes activity: (active, inert, extinct, dormant)
What is inert.
This scale measures a minerals hardness
What is the Mohs scale.
The amount of strain that a rock can handle without breaking is related to its property of.
What is ductility or elasticity.
On, through but not through there may these waves travel.(DD)
What are seismic waves.
Harnessing heat produced by magma to generate energy is called ?
What is geothermal energy.
This is the most common volcanic structure. (DD)
What is the stratovolcano.
Specific gravity is a term that defines what?
What are surface waves.
This indicates the energy released during an earthquake.
What is the Richter scale.
This depression is found at the top of most volcanic cones?
What is a crater.
Batholiths and laccoliths are both types of?
What are plutons.
An insect encased in amber?
What is original material
This scale measures the destructiveness of an earthquake.
What is the Modified Mercalli Intensity scale or MMI.
Hold onto your shorts, these mudslides caused by a volcanic eruption are known as
What is a lahar.
The VEI rating measures what?
What is evolutionists.