Earthquakes & Volcanoes

Match it! Select the correct answer from the pull down...Good luck!

As plates separate, long cracks called ___ form between them.

The Richter scale measures the ___ of an earthquake.

the slowest and largest seismic waves

Seismic waves are recorded using an instrument called a ___.

Magma flowing onto Earth's surface is called ___.

Seismic sea waves, called ___, can cause huge waves at the shoreline.

When rocks change shape by breaking, ___ form.

the fastest seismic waves, which travel through rock material and cause the rock to move back and forth in the same direction as the waves