Earthquake

The vibrations in the earth caused by the sudden release of energy is called an ______________.

What is a primary earthquake wave that travels through the body of the earth; so named because it is the first wave to reach a seismograph station during an earthquake.

What is an earthquake wave that follows the main shock of an earthquake?

What is the point on the surface of the earth directly above the focus of an earthquake?

The location inside the Earth where an earthquake begins.

What is an instrument that detects, records, and measures the vibrations produced by an earthquake called?

What is a series of sea waves caused by underwater earthquakes called?

Plate boundary where the plates move apart.

What is the zone of intense earthquake and volcanic activity called?

A zone of intense earthquake and volcanic activity encircles the _________ Ocean.

What wave is generated during an earthquake that moves up and down?

Scale used to rank earthquakes based on the level of destruction it caused.

Scale used to measure the amount of energy released during an earthquake.