Ch. 6 Vocab & Lecture

Front

Vibrations of the earth's crust are called_________

Back

Earthquakes

Front

Small earthquake tremors are called...

Back

aftershocks

Front

Area along a fault where slippage first occurs:______

Back

focus

Front

Point on Earth's surface above the focus:

Back

epicenter

Front

______ earthquakes occur within 70 km of the earth's surface.

Back

shallow-focus

Front

A group of interconnected faults are called...

Back

fault zones

Front

Seismic waves are detected by a ________.

Back

seismography

Front

An earthquake with a magnitude <2.5 is a ___________

Back

microquake

Front

Magnitude of an earthquake scale.

Back

richter

Front

Zones of immobile rock are called...

Back

Seismic gaps.