EARTHQUAKES & VOLCANOES!

Trivia

Earthquakes•What do you call a crack or fracture in the Earth’s crust?

Earthquakes•What do you call a crack or fracture in the Earth’s crust?

•A Fault

Earthquakes•Most earthquakes occur along _______ _____________. (2 words)

Earthquakes•Most earthquakes occur along _______ _____________. (2 words)

Plate Boundaries

Earthquakes•These are small earthquakes that occur after a major earthquake

Earthquakes•These are small earthquakes that occur after a major earthquake

Aftershocks

Earthquakes• Vibrations caused by earthquakes are also known as _________ _________.

Earthquakes• Vibrations caused by earthquakes are also known as _________ _________.

Seismic Waves

Earthquakes• List the 3 types of seismic waves caused by earthquakes.

Earthquakes• List the 3 types of seismic waves caused by earthquakes.

Primary waves, secondary waves, surface waves

Earthquakes• Which type of seismic wave causes the most damage?a) Primary wavesb) Secondary wavesc) Surface waves

Earthquakes• Which type of seismic wave causes the most damage?a) Primary wavesb) Secondary wavesc) Surface waves

Earthquakes• Which type of seismic wave travels the fastest?a) Primary wavesb) Secondary wavesc) Surface waves

Earthquakes• Which type of seismic wave travels the fastest?a) Primary wavesb) Secondary wavesc) Surface waves

Earthquakes•What is the point underground called where movement first starts as an earthquake?

Earthquakes•What is the point underground called where movement first starts as an earthquake?

Focus

Earthquakes•A water wave caused by an earthquake, volcanic eruption, or landslide is called ___________.

Earthquakes•A water wave caused by an earthquake, volcanic eruption, or landslide is called tsunami.

Earthquakes•What do scientists locate using seismographs?

a. Liquefactionb. Stressc. Epicentersd. Aftershocks

Earthquakes•What do scientists locate using seismographs?

a. Liquefactionb. Stressc. Epicentersd. Aftershocks

•This is another word for an opening in Earth’s crust through which molten rock, rock fragments, and hot gases erupt

Volcanoes•This is another word for an opening in Earth’s crust through which molten rock, rock fragments, and hot gases erupt

Volcano

Volcanoes•Molten rock beneath earth’s surface is known as _____________. While molten rock that has reached earth’s surface is called _______________.

Volcanoes•Molten rock beneath earth’s surface is known as magma. While molten rock that has reached earth’s surface is called lava.

Volcanoes•The space beneath a volcano where magma collects is called the ________ __________. (2 words)

Volcanoes•The space beneath a volcano where magma collects is called the magma chamber.

Volcanoes•Pieces of rock formed from sticky lava are called ____________.

Volcanoes•Pieces of rock formed from sticky lava are called tephra