Earth Science chapter 19 review
Which state has the most earthquakes?
Alaska
What is the continent with the fewest earthquakes?
Antarctica
Where is the San Andreas Fault Located
California
When and where did the largest earthquake occur?
Chile in 1960
The deadliest earthquake occured in what country in the 1500's?
China
What state has the fewest earthquakes?
Florida
What is the most destructive type of wave?
L wave
What is the surface wave called?
L wave
What type of wave is the slowest?
L wave
a rating scale that rates the types of damage and other effects of an earthquake
Modified Mercalli Scale
What was the largest earthquake in the contiguous U.S.?
New Madrid
What is the fastest type of wave?
P wave
What type of wave moves through solids, liquids, and gases?
P wave
What wave is a compressional wave?
P wave
a numerical rating system that measures the enrgy of the largest seismic waves
Richter scale
What type of wave is a shear wave?
S wave
What wave moves only through solids?
S wave
slower than p waves. usually the second wave to be felt
S wave
The height of the largest seismic wave
amplitude
caused when a material is compressed, beat, or stretched
elastic deformation
the point on the earths survace directly above the focus
epicenter
any fracture or system of fracturesalong which earth moves
fault
What natural disaster happened in San Francisco in 1906?
fire
the point where waves originate in an earthquake
focus
What natural disaster happened in Alaska in 1964?
landslide
What natural disaster happened in Loma Prieta in 1989?
liquefaction
the energy of the largest seismic wave
magnitude
a rating scale that measures the energy released by an earthquake
moment magnitude scale
What is the number of earthquakes per year?
over 1 million
happens when stress builds up past the elastic limit and has permanent effects
plastic deformation
squeeze and push rocks in the direction along which the waves are travelling
primary waves
sections located along faults that re known to be active, but which have not experienced significant earthquakes in a long time
seismic gaps
the vibrations in the ground produced by earthquakes
seismic waves
the record produced by a seismometer
seismogram
instruments that detect seismic waves
seismometer
seismic waves that make the ground act like water
soil liquefaction
the deformation of materials in response to stress
strain
The total force acting on crustal rocks per unit of area
stress
What natural disaster happened in Indonesia in 2004?
tsunami
a large ocean wave generated by vertical motions of the seafloor during an earthquake
tsunami