Volcano/Earthquake

A force that acts on rock to change its shape or volume is called______.

• an aftershock

• friction

• liquefaction

• stress

Which type of fault is pictured?

• reverse

• strike-slip

• shearing

• normal

The ____ is the point beneath Earth's surface where rock breaks under stress and triggers an earthquake.

• syncline

• footwall

• epicenter

• focus

Tags

NGSS.MS-ESS3-2

The type of seismic waves that arrive at the surface first and move by compressing and expanding the ground like an accordion are called

• S waves

• P waves

• Surface waves

• Mercalli Waves

S waves are also know as____.

• primary waves

• secondary waves

• surface waves

• focus waves

Tags

NGSS.MS-PS4-2

Compared to P waves and S waves, surface waves move _____

• faster

• slower

• at the same rate

• farther from the epicenter

What does a seismograph record?

• the speed of seismic waves

• the ground movements caused by seismic waves

• the location of the epicenter

• Post Malones greatest hits.

Tags

NGSS.MS-PS2-5

What is the minimum number of seismograph stations required in order to determine the exact location of an earthquake's epicenter?

• 1

• 2

• 3

• 4

Reorder the following in terms of what waves will reach the seismograph first.

• surface waves

• P Waves

• S Waves

Before lava reaches the surface, the molten material is called ____.

• rock

• magma

• volcanic ash

• Bridgette fire