Earthquakes

The types of seismic waves are:

The Mercalli scale measures the intensity of the earthquake as related to the extent of the damage it causes.

The ________ is the location on Earth's surface directly above the earthquake's focus.

A seismometer measures & records _____ motion & is used to determine the distance seismic waves travel.

A graphical illustration of seismic waves is recorded as a __________.

A _______ _________ is an area where Earth's lithospheric plates move & interact with each other.

Surface waves cause particles in the ground to move up & down in a rolling motion similar to ocean waves.

Seismic waves originate where rocks first move along the fault, at a location inside Earth called the ______.

Where are earthquakes most likely to occur?

______ waves are slower than P-waves & cause particles to move up & down at right angles.

The Richter scale measures _______ motion to determine earthquake magnitude.

Earthquakes are the vibrations in the ground that result from movement along breaks in the Earth's ____________.

When rocks move along a fault, they release energy that travels as vibrations on & in Earth called ______ _______.

Through extensive earthquake studies, seismologists have discovered that S-waves can travel through the outer core.

Scientists that study earthquakes are called:

Primary waves also called P-waves, cause particles in the ground to move in a ___-___ motion similar to a coiled spring.

Scientists primarily use __ different scales to measure & describe earthquakes.

The Mercalli scale measures on a Roman numeral value from:

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