GEO Ch 16 Word Scramble

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size Small Size show me how

Question	Answer
Both P waves and S waves can pass through ___	solid rock
Earthquake waves propagate most rapidly through ___	igneous rock
Richter scale values above 7 are not accurate. The ___ scale is a more objective method of measuring the energy of a large earthquake	moment magnitude
The greatest loss of life in the 1964 southern Alaska earthquake was from ____	tsunamis
_____ would be associated with Benioff zones	All the answers are correct
A ___ plots seismic-wave arrival time against the distance	travel-time curve
The point within the earth where seismic waves first originate is the ____	focus
_____ waves tend to be incredibly destructive to buildings because they produce much ground movement and take a long time to pass	Rayleigh
_____ are seismic waves that travel through the Earth's interior, spreading out from the focus in all directions	Body Waves
On the modified Mercalli intensity scale the maximum value is _____	XII
_____-waves are the slowest body waves	S
A _____ is the first wave to arrive at a recording station following an earthquake	P-wave
___ earthquakes probably occur along older faults that are no longer at plate boundaries, for example the New Madrid Missouri earthquakes of 1811-1812	Intraplate
In the elastic rebound theory, earthquakes are caused by the sudden release of progressively stored ___ in rocks	strain
A ____ is a seismic sea wave	tsunami
Perhaps 90 percent of the destruction in the 1906 San Francisco earthquake was caused by ___	fires
Although large earthquakes are rare in the central and eastern United States, when they do occur they tend to be very destructive because	the crust there is cool and brittle
Rupture begins at the ____ and then spreads rapidly along the fault plane	focus
____ are earthquake waves that cause the most property damage	Surface waves
Faulting and earthquakes are examples of ______	brittle behavior
The most important concentration of earthquakes by far is _____	the Circumpacific belt
The paper record of an earthquake is a ___	seismogram
The effects of ground motion caused by an earthquake do not include	volcanism
_____ are the waves of energy produced by an earthquake	Seismic
_____ maps are useful for assessing how different areas respond to seismic waves and provide valuable information for earthquake planning	Intensity
_____ focus earthquakes are the most common	Shallow
Surface Waves _____	produce most of the damage to buildings during earthquakes
_____ can occur when water-saturated soil turns from a solid to a liquid as a result of an earthquake	Liquefaction
Deep rocks behave as ____ material under stress rather than breaking	ductile
___ stations are the minimum needed to determine the location of an earthquake epicenter	Three
The time interval between the first arrival of P-waves and the first arrival of S-waves _____ with distance from the focus of an earthquake	increases
For most of the 20th century earthquake magnitude was reported on the _____ scale, a scale that has never exceeded a magnitude 8.6	Richter
A series of earthquakes that occurred near ____ in 1811-1812 were the most widely felt earthquakes to occur in recorded history	New Madrid, Missouri
____ is a measure of an earthquake's effect on people and buildings	Intensity
Medium and deep focus earthquakes occur along _____	convergent plate boundaries only
The ____ is the most famous example of a right lateral transform fault	San Andreas Fault in California
One suggested cause of deep focus earthquakes is _____	collapse of minerals into denser forms
Tsunami waves may move faster than _____	800 km/hr
Which of the following is not used to aid in earthquake prediction	tsunamis
Deep focus earthquakes occur at a maximum depth of _____	670 km

Created by: tbaum25