Volcanoes & Earthquakes

This is the name for the chain of volcanos around the edge of the Pacific Plate.

• March Maddness

• Earthquake Alley

• Ring of Fire

• Circle of Death

What is mostly likely the cause of an earthquake?

• stress due to movement in Earth's crust
• gravitational variation due to Moon's orbit around Earth
• temperature variation due to Earth's orbit around the Sun
• rotational imbalance due to changes in Earth's poles

Many earthquakes happen along the borders of...

• Countries

• Tectonic Plates

• Climate Zones

• Mountains

What is a break in the rock layers called?

• Earthquake
• Epicenter
• Fault
• Focus

In this image we have magma rising to the surface and exiting in small amounts. A volcanic mountain has not  yet formed. What do we call this?

• Hot Spot
• Volcano
• Fault-Block

What do you call melted rock below the Earth's surface?

• lava
• fault
• focus
• magma

The epicenter of an earthquake is

• The point below the surface where rock begins to break and the first motion occurs
• The seismic station closest to the earthquake
• The place where the greatest damage occurs
• The point on the surface directly above the focus

What is letter B in the picture?

• Magma Chamber
• Crater
• Vent
• Conduit

Composite volcanoes otherwise known as stratovolcanoes are associated with...

• Explosive volcanic eruptions

• quiet volcanic eruptions

The strength of an earthquake is measured using a device called

• Sonar

• Magnetometer

• Seismograph

• Richter Scale