Earth Science Chapter 9 Earthquakes and Volcanos

Where rocks first move along a fault is called the ______.

What is slow moving magma from a volcano that is rarely deadly but can be destructive?

What is the instrument that records ground motion, used to find distance of an earthquake?

What type of plate boundary is found at a strike-slip fault?

What happens during explosive eruptions and can blow ash up to 40km into the air?

What is the location directly above the focus on Earth's surface called?

What Earthquake waves are the slowest?

What Earthquake waves are the fastest?

What are fast moving avalanches of hot gas, ash, and rock up to 100 km/hr.  Very deadly.

The more dissolved gas in magma means the volcano is  ____________.

Scientists that study earthquakes are called _____.

More silica in lava means ___________.

How many seismic stations are needed to locate an earthquake?

What scale measures the magnitude of an earthquake?

What is caused by thermal energy from volcano melting snow and ice?

What Earthquake waves move up and down at right angles?

What is a graphical representation of seismic waves?

What is the vibrations in the ground that result from movement along breaks in the Earth?

What Earthquake waves cannot pass through liquids?

What Earthquake waves have a rolling motion similar to ocean waves?

What type of plate boundary is found at a normal fault?

What scale measures the destruction of an earthquake?

What are vents in Earth's surface crust through which melted or molten rock flows?

What type of plate boundary is found at a reverse fault?

A break in Earth's lithosphere where one block moves toward, away from, or past another is a __

What is the term meaning a liquids resistance to flow?

What is a change in the shape of rock from pressure along plate boundaries?