Plate Tectonics

Ocean crust found in opposite directions and equal distances from the mid-atlantic ridge have:

Mid-ocean ridges are ____ boundarys.

In which part of Earth's interior can S waves NOT travel?

The point inside earth's crust where the earthquake originates is called ___________.

Ocean ridges are _______?

In a subduction boundary the ____ plate sinks downward because it is ____ dense.

Evidence that the continents were once joined together in a super continent called Pangea is:

The process that continually adds new crust is:

A scale which measures an earthquake's effect on people and buildings is called:

The "Shadow Zone" is created by __________.

An unusually hot part of the mantle that causes volcanic activity is called a

Which correctly state facts about P & S waves?

The boundary between the Nazca Plate and the South American Plate is a ___ boundary.

Going from a 5 to a 7 on the Richter Scale the energy of the earthquake increases ___ times

The part of earth's interior which extends from approximately 2900 km to 5200 km is the _______

What is another name for The Ring of Fire?

The San Andreas fault in California is a ____ plate boundary.

Currents found in which part of earth's interior?

Earthquakes, volcanoes, mountain building and ocean trenches

What causes the tectonic plates to move?

How far is this earthquake from the epicenter?

To determine the location of an earthquake epicenter _____ seismic stations are needed.