Flashcards in Quiz 2 Deck (23)
Geologists who specifically study earthquakes are called _____
earthquakes are often results of ________
a primary force opposing on all faults is _______
aftershock following major earthquake ______
may continue for days
are mostly smaller than the original earthquake
may occur on the same or a different fault
the stress (applied force) that builds on a preexisting fault that has previously ruptured _____
must overcome the force of friction to cause an earthquake
in order for an earthquake to occur where you live, which of the following must be true?
energy must be released in the earths crust
the image below of a coiled spring is illustrating a ____ wave
which type of seismic wave has the highest velocity?
earthquake waves that pass through the interior of earth are termed ____
as a seismologist examining a seismogram, you would know that the third set of waves displayed _____
would cause the most damage
seismometers, being able to detect ground movements of a millionth of a millimeter, are useful to governments worldwide for detecting not only earthquakes, but______
nuclear bomb test
all else being equal, an earthquake that strikes in the eastern United States would produce shaking that would be felt ______ than one that occurred in the western United States.
over a greater distance
the key to finding the location of an earthquake's epicenter is measuring ______
difference between the time that the p wave and then the S wave to arrive at the seismometer station
the point within earth where an earthquake takes place is termed the ______-
the point on earths surface surface directly above the point where an earthquake occurs is termed the ____
how many seismic stations are necessary to find the epicenetr of aan earthquake?
which earthquake severity scale takes vibration caused by the S wave into account when estimating the size of an earthquake?
which earthquake intensity scale assess the effects of an earthquake on humans and human made structures?
an earthquake occurs with an epicenter in the town of new madrid, missouri, in the interior of the North American plate. which might the hypocenter of this earthquake plausibly be found?
20 km beneath new madrid
which earthquake severity scale varies from locality for a single earthquake?
earthquakes are likely to occur along _____
all of the plate boundary types
medium-and deep-focus earthquakes occur along _____
convergent plate boundaries