1. With increasing travel time the difference in anival times between the P and the
Swaves
A. Increuses
C. decreases
B stays constant D. none of the above
3. Which of the following descnbes the epicenter of an earthquake?
A The location where the plate boundary rupture frat happene
B. The place where there is the most damage.
C. The location on the surface of the Earth above where the plate boundary
rupture first happens.
D. The opposite side of the Earth to the earthquake.
3. How many seismograph stations are needed to find the location of an epicenter?
A 1
BS
D. NONE
4. Seismic waves are waves of energy that:
A plastically distort the matenal that they pass through,
B. permanently distort the material that they pass through,
C. break the material that they pass through
D. elastically distort the material that they pass through
5. A seismograph is a device used to:
A. sound an alarm,
B. prevent earthquakes from occurring,
C. record the vibrations produced during an earthquake
D. calm the seismologist during an earthquake
6. What do earthquakes, volcanoes, and mountain building have in common?
A. They occur suddenly.
C. They cause major disasters.
B. They result from plate motion.
D. They are measured by
seismographs.
7. Where are volcanoes located?
A. Where epicenters are found.
C. Where magma reaches the surface.
B. Where fault-block mountains form. D. Where plates slide by one another.
8. What factor does NOT affect how much damage results from an earthquake?
A. The distance from the epicenter.
B. The strength of an earthquake.
C. The makeup of the Earth's surface in the quake zone.
D. The distance from a hot spot.
9. The phrase "Ring of Fire" refers to what phenomenon?
A. Ash falls
C. Typical caldera shape
B. Circum-pacific chain of volcanoes D. Pattern of lava flow
10. An instrument that detects and measures earthquakes is a
A. Seismogram
C. seismic map focus
B. focus
D. seismograph​