Earthquakes Flashcards
The seismic gap hypothesis is one way researchers can forecast the ____________ of the next quake.
location
A type of earthquake that can not be assessed accurately by the Richter Scale is……
A large magnitude 9
When examining a seismogram record of an earthquake we can look at the time difference between the arrival of the P-wave and S-wave and determine the _____________
distance to the earthquake focus
Which of the following earthquake assessment scales is best for determining the “energy released” by the quake?
Moment Magnitude Scale
What kind of seismic wave propogates all the way through the Earth?
P-waves
Which of the following is a true statement about earthquakes.
shallow earthquakes have the potential to be the most damaging
Which segment of the San Andreas Fault is given the highest chance of rupturing?
The southern segment from Palm Springs to the Imperial Valley
The San Andreas Fault is this type of fault?
right lateral fault
Which of the following earthquakes would likely kill the most people due to seismic shaking?
Shallow rupture magnitude 7 in an old city
Los Angeles is situated in a seismically vulnerable place because…….
The city sits on a sedimentary basin that amplifies seismic waves
Which of the following quakes did not generate a tsunami?
Northridge 1994
Paleoseismology studies the history of earthquakes on a given fault segment and this allows researchers to determine an approximate………
recurrence interval
Which of the following types of materials would shake the most as seismic waves propagate through?
Mud
The length of a “fault rupture” would correlate with which of the following measures?
duration
Which of the following would have the least effect on earthquake damage?
Magnitude of the earthquake
