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Earthquake Image Glossary


 

Earthquake Image Glossary
See also EarthquakeABC

Printable Version


A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

A

acceleration
accelerogram
accelerograph
accretionary wedge
active fault
aftershocks
alluvium
amplification
amplitude
arc
aseismic
asperity
asthenosphere
attenuation


B

backarc
basement
bedrock
Benioff zone
blind thrust fault
body wave
brittle-ductile boundary

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C

14 C age
compressional stress
compressional wave
core
creep

crust


D

dip
dip slip (see fault)
directivity
displacement
deformation


E

earthquake
earthquake hazard
earthquake risk
epicenter

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F

fault
fault creep
fault gouge
fault plane
fault-plane solution
fault scarp
fault trace
first motion
focal depth
focal-mechanism solution
focus
forearc
foreshocks
frequency


G

G or g
geodesy
geodetic

geology
geomorphology
geophysics
geotechnical
gravity
graben
ground failure
ground motion

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H

halfspace
harmonic tremor
hazard
hertz (Hz)
Holocene
horst
hypocenter


I

intensity
interplate
interplate coupling
intraplate

isoseismal (line)


K

kinematic

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L

landslide
Late Quaternary
lateral spread or flow
least-squares fit
left-lateral
lifelines
liquefaction
lithology
lithosphere
locked fault
Love wave


M

Ma
magnetic polarity reversal
magnitude
mainshock
mantle
microzonation
Moho
moment magnitude


N

natural frequency
normal stress
normal fault

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O

oceanic spreading ridge
ocean trench


P

P wave
paleoseismicity
peak acceleration
pedogenic
percent "g"
period
plate tectonics
Pleistocene
Poisson distribution


Q

Q
Quaternary

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R

radiometric
Rayleigh wave
recurrence interval
reflection
refraction
regression analysis
residual
return period
right-lateral
Richter scale
Ring of Fire
rupture front
rupture velocity

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S

S wave
sand boil
sea-floor spreading
secular
segmentation
seiche
seismic gap
seismic hazard
seismicity
seismic moment
seismic reflection or refraction line
seismic wave
seismic zone
seismogenic
seismogram
seismograph
seismology
seismometer
shadow zone
shear stress
shear wave
slab
slickensides
slip
slip model
slip rate
soil
soil profile
source
spectral acceleration (SA)
spectrum
standard deviation
station
stick-slip
stochastic
strain
strain rate
stress
stress drop
strike
strike-slip
strong motion
subduction
subduction zone
surface faulting
surface wave
surface wave magnitude

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T

tectonic
tectonic plates
teleseismic
tensional stress
thrust fault
time history
transform fault
traveltime curve
tsunami
tsunamigenic
tsunami magnitude (Mt)
turbidites


V

velocity
velocity structure


W

wave front
wavelength


Y

YBP

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For more technical definitions of these terms, see:
Montana Bureau of Mines & Geology

See also:
USGS Volcano Hazards Program Photo Glossary
Volcano World's Volcanic Glossary

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URL: http://earthquake.usgs.gov/image_glossary/
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Last modification: Friday, 04-Jun-2004 10:18
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