Tsunami

Most major tsunamis are produced by earthquakes with magnitudes greater than

• 6

• 7

• 8

• 9

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS2-1

NGSS.HS-ESS3-1

Most major tsunamis are produced by earthquakes with hypocenters less than

• 5 km

• 10km

• 20km

• 30km

Tags

NGSS.HS-ESS3-1

Most major tsunamis are generated by earthquakes along

• Divergent margins

• Convergent margins

• Transform margins

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS2-1

When the stress exceeds the resistance to shearing along the locked interface between two converging plates, what will happen?

• The seafloor will suddenly subside

• The seafloor will suddenly be driven upward

• The seafloor will slide passively in a lateral direction parallel to the strike of the interface

• Nothing will happen

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS2-1

If the seafloor is suddenly displaced upward, then what happens to the sea surface?

• It will subside

• It will remain unchanged

• It will momentarily rise

Tags

NGSS.HS-ESS2-1

If the sea surface is displaced upward, then how does it respond to gravity?

• It resists gravity and remains elevated

• It responds to gravity and flows outward from the central area of disturbance as it attempts to regain its original flat undisturbed form.

Tags

NGSS.HS-PS2-1

During a tsunami a series of waves radiating outward from a central disturbance of the sea floor is called a

• Ocean storm

• Wind-generated disturbance

• Wave train

• Wavelets

Tags

NGSS.MS-PS4-2

Just prior to a tsunami coming ashore, sea level appears to fall quickly. This phenomenon is called

• Sea level drop

• Draw fall

• Drawdown

• Dip in sea level

In the open ocean a tsunami can travel at speeds of

• 183 km/hour

• 244 km/hour

• 966 km/hour

• 732 km/hour

Tags

NGSS.HS-PS4-1

As a tsunami approaches shallow water which of the following set of transformations occur?

• Wavelength increases, wave period decreases, and wave height stays the same

• Wavelength decreases, wave period decreases, and wave height increases

• Wavelength decreases, wave period increases, and wave height increases

• Wavelength decreases, waver period stays the same, and wave height increases

Tags

NGSS.HS-PS4-1