This is a deadly mudslide of rock and debris that accompanies a volcanic eruption:

What is molten rock that has reached the Earth's surface?

Where do volcanoes come from?

Beneath a volcano, magma collects in a:

What is the conduit through which magma travels from it's underground chamber to the vent on the Earth's surface?

A break or crack in the Earth's crust is called a...

What is most commonly associated with transform boundaries?

Where is the point at which the first movement occurs during an earthquake?

Where is the point on the Earth’s surface directly above the focus of an earthquake?

P Waves can move through which of the following?

What is an instrument that detects and records waves produced by earthquakes? (This piece of equipment can measure the magnitude of an earthquake.)

Which city is closest to the epicenter?

This moment magnitude scale measures:

Also known as shear or secondary wave; a seismic wave that causes particles of rock to move in a side-to- side direction.

Which type of waves are the fastest and first to arrive after an earthquake?