Ch 7.2 Nature of Earthquakes Lecture Quiz

Why do about 80% of earthquakes occur around the Pacific Ocean basin?

• It is lined with divergent boundaries.

• It is lined with convergent and transform boundaries.

• It is lined with intraplate boundaries.

• It is lined with subduction zones only.

What percentage of earthquakes occur in the Mediterranean-Asiatic Belt?

• 80%

• 15%

• 5%

• 10%

What percentage of earthquakes are scattered around other plate boundaries or are intraplate earthquakes?

• 80%

• 15%

• 5%

• 20%

What happens to the plate as it plunges through the mantle at convergent boundaries?

• It cools down

• It remains unchanged

• It heats up and deforms plastically

• It breaks apart

When did a 9.0 earthquake strike off of Sendai in northeastern Japan?

• March 2010

• March 2011

• March 2012

• March 2013

What happens to earthquakes on land where continents split apart?

• They become smaller and weaker

• They become larger and stronger

• They remain the same

• They disappear

What type of geological feature is associated with divergent plate boundaries?

• Mountain ranges

• Mid-ocean ridges

• Deep ocean trenches

• Volcanic arcs

Approximately how many square miles was the 1812 earthquake felt over?

• 10,000

• 50,000

• 100,000

• 5,000

What is the low point of a wave called?

• Crest

• Trough

• Amplitude

• Wavelength

Which part of the wave is associated with its height?

• Wavelength

• Amplitude

• Crest

• Trough