Earthquakes and Volcanoes

A break in the crust where slabs of rock slip past each other is a ____________.

• epicenter

• caldera

• stress

• fault

Mt. Etna is a volcano that shows signs of erupting. As it may erupt in the future, it is considered an __________ volcano.

• dormant

• active

• hotspot

Tags

NGSS.MS-ESS3-2

A geologist can locate the ____________ of an earthquake by drawing circles to show distances from three different seismograph stations.

• epicenter

• plate size

• stress

• magnitude

The point beneath the Earth's surface where the crust breaks and triggers an earthquake is called the (a)   .

Tags

NGSS.MS-ESS3-2

What factors affect how thick or thin magma is? There is more than one factor.

• gas content

• lava content

• water content

• silica content

P-Waves during an earthquake arrive ________ at a seismic station.

• First

• Second

• Third

• Fourth

S waves during an earthquake arrive ____________ at a seismograph station.

• First

• Second

• Third

• Fourth

When S & P waves reach the surface during an earthquake they sometimes turn into ______________.

• aftershocks

• tsunami's

• surface waves

• focuses

Tags

NGSS.MS-PS4-2

The three types of faults are the following:

• reverse

• surface

• normal

• strike-slip

A Shield volcano erupts quietly and expels _________ lava.

• thin and thick.

• thick

• thin

• explosive