Volcanoes
What is the major Volcanic Belt surrounding the Pacific Ocean Tectonic Plate Boundaries?
Ring of Fire
The study of earthquakes is called what?
Seismology
Violent shaking of Earth's crust caused by a rapid release of energy.
Earthquake
What is Yellowstone?
Super volcano
What is the opening through which the magma leaves the volcano?
Vent
What is the point on Earth's surface directly above the focus is known as?
Epicenter
What is the point where energy is first released along a fault and may be at a considerable depth within Earth's crust?
Focus
What is the thick layer between the Earth's crust and core?
Mantle
What is made mainly of layers of lava sheets?
Shield Volcanoes
What waves cause particles in Earth's crust to move back and forth along the direction the wave is traveling?
P waves (primary waves)
What is used to measure the intensity/strength of earthquakes?
seismometer
This is the outermost layer of the solid Earth.
Crust
A huge hole left by the collapse of a volcanic mountain is known as what?
Caldera
The vibrations in Earth's crust during an earthquake are caused by what?
seismic waves
This is a large, molten pyroclastic mass ejected from volcanoes.
Bomb
This area is known as the center of the Earth.
Core
What is being described here?
Magma hardens in a volcano's pipe. The softer rock around the pipe wears away, exposing the hard rock of the _________.
Volcanic Neck
What wave causes particles in rocks to move back and forth in a direction perpendicular to the direction in which the wave is traveling?
S Waves (secondary waves)
What is the crust-mantle boundary, characterized both by a change in rock composition and a change in seismic wave velocity?
Moho (Mohorovicic discontinuity)
What substance is the Earth's core thought to be primarily made up of?
Iron