Earthquake and Volcano Assessment

Front

What are S-waves and what can they move through?

Back

S-waves (secondary waves) are seismic waves that can only move through solids.

Front

What is the mineral composition of mafic igneous rocks?

Back

Mafic igneous rocks are rich in magnesium and iron, typically darker in color.

Front

What is the Moho?

Back

The Moho, or Mohorovičić discontinuity, is the boundary between the Earth's crust and the underlying asthenosphere.

Front

What is a magma chamber?

Back

A magma chamber is a large underground pool of molten rock found beneath the surface of the Earth.

Front

What is a volcanic pipe?

Back

A volcanic pipe is a vertical conduit through which magma travels to the surface.

Front

What are tsunamis and how are they formed?

Back

Tsunamis are large ocean waves caused by underwater earthquakes or volcanic eruptions.

Front

What is the lithosphere?

Back

The lithosphere is the rigid outer layer of the Earth, consisting of the crust and the upper mantle.

Front

What is the difference between felsic and mafic rocks?

Back

Felsic rocks are rich in silica and light-colored, while mafic rocks are rich in iron and magnesium and darker.

Front

What is the role of the asthenosphere in plate tectonics?

Back

The asthenosphere is a semi-fluid layer that allows tectonic plates to move over it.

Front

What is a crater?

Back

A crater is a bowl-shaped depression at the top of a volcano formed by explosive eruptions.