Earthquakes and Volcanoes

Front

What instrument measures seismic waves?

Back

Seismograph

Front

What is the movement of magma powered by heat called?

Back

Convection currents

Front

What type of volcano ejects tephra from the top and often leaves a crater?

Back

Cinder Cone

Front

What type of boundary occurs when tectonic plates slide past one another?

Back

Transform boundary

Front

What are seismic waves that are like a rope wave, not the fastest but not the slowest?

Back

Secondary waves

Front

What is the scale used to measure the magnitude of earthquakes?

Back

Richter Scale

Front

What type of volcano is characterized by broad, gentle slopes and is formed by the eruption of low-viscosity lava?

Back

Shield volcano

Front

What is the term for the point on the Earth's surface directly above the focus of an earthquake?

Back

Epicenter

Front

What are the two main types of seismic waves?

Back

Body waves and surface waves

Front

What is the process called when one tectonic plate is forced under another?

Back

Subduction