Earthquake Glossary
A
- acceleration
- accelerogram
- accelerograph
- accretionary wedge
- active fault
- aftershocks
- alluvium
- amplification
- amplitude
- arc
- aseismic
- asperity
- asthenosphere
- attenuation
B
C
D
E
F
- fault
- fault creep
- fault gouge
- fault plane
- fault scarp
- fault trace
- fault-plane solution
- first motion
- focal depth
- focal-mechanism solution
- focus
- forearc
- foreshocks
- frequency
G
- G or g
- geodesy
- geodetic
- geologic time scale
- geology
- geomorphology
- geophysics
- geotechnical
- graben
- gravity
- great circle
- ground failure
- ground motion
H
I
K
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
- Modified Mercalli Intensity Scale
- Moho
- moment magnitude
- moment tensor
N
O
P
- P wave
- paleoseismicity
- peak acceleration
- pedogenic
- percent
- period
- plate tectonics
- Pleistocene
- Poisson distribution
Q
R
- radiometric
- Rayleigh wave
- recurrence interval
- reflection
- refraction
- regression analysis
- residual
- return period
- Richter scale
- right-lateral
- Ring of Fire
- rupture front
- rupture velocity
S
- S wave
- sand boil
- sea-floor spreading
- secular
- segmentation
- seiche
- seismic gap
- seismic hazard
- seismic moment
- seismic reflection or refraction line
- seismic wave
- seismic zone
- seismicity
- 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
T
- tectonic
- tectonic plates
- teleseismic
- tensional stress
- thrust fault
- time history
- transform fault
- traveltime curve
- tsunami
- tsunami magnitude (Mt)
- tsunamigenic
- turbidites