Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/51

Click to flip

51 Cards in this Set

  • Front
  • Back
the study of earthquakes
siesmology
a break in the earths crust along which blocks of the crust slide relative to one another
fault
the change in the shape of rock in response to stress
deformation
rocks of the crust bend and change shape without breaking
plastic deformation
occurs when rock is streched beyond its breaking point
elastic deformation
the sudden return of elastistically deformed rock to its original shape
elastic rebound
differ in strength and in depth at which they begin
earthquakes
energy released by earthquakes that travel in waves
seismic waves
seismic waves tha travel through the earths interior
body waves
what are the two types of body waves
s and p
siesmic waves that travel along the earths surface
surface waves
primary waves "pressure waves" fastest seismic wave can travel through solids, liguids, and gases
p waves
secondaary waves "shear waves" 2nd fastest seismic wave CANT travel though liquids
s waves
move the ground up and down
surface waves
a device used to detect seismic waves
seismograph
a tracing of earthquake motion created by a seismograph used to determine the epicenter of waves
seismogram
the point on the earths surface directly ABOVE the earthquakes starting point
epicenter
the point INSIDE the earth where an earthquake begins
focus
seismomologist collect and compare seismograms from 3 seperate seismographs
s p time method
what is another name for the s p time method
triangulation
american seismologist who in the 1930s developed a scale used to measure earthquake intensity
Charles Richter
measures how prone an area is to experience earthquakes in the future
earthquake hazard
states that sections of active faults that have had relativly few earthquakes are likely to be sites of strong earthquakes in the future
gap hypothesis
the areas along a fault where relativly few earthquakes have occured
seismic gap
technologyu is used to design and construct buildings and bridges capable of withstanding earthquakes
earthquake resistant buildings
a weight placed in the roof of the building
mass damper
placed between floors to counteract pressures that push and pull the side of a building during an earthquake
cross braces
found in the basement and works like the mass damper
active tendon system
help prevent water and gas lines from breaking
flexible pipes
found in the foundation and act as shock absorbers
base isolators
the boundary between the earths crust and mantle
moho
part of the core discovered in 1936
inner core
the area on the earths surface where no direct seismic waves from an earthquake can be detected
shadow zone
seismoraph place there in 1969
(other cosmic bodies)
the moon
Viking1 boght a seismograph here in 1976 (other cosmic bodies)
mars
how many mars quakes have been detected?
1
the information satellite SOHO seismic activity following soloar flares
sun
found in the basement and works like the mass damper
active tendon system
help prevent water and gas lines from breaking
flexible pipes
found in the foundation and act as shock absorbers
base isolators
the boundary between the earths crust and mantle
moho
part of the core discovered in 1936
inner core
the area on the earths surface where no direct seismic waves from an earthquake can be detected
shadow zone
seismoraph place there in 1969
(other cosmic bodies)
the moon
Viking1 boght a seismograph here in 1976 (other cosmic bodies)
mars
how many mars quakes have been detected?
1
the information satellite SOHO seismic activity following soloar flares
sun
what is an earthquake on the sun called
sunquake
what is an earthguake on the moon called
moon quakes
what is an earthquake on mars called
mars quake
what is much more powerful and earthquake or sunquake
sunquake