seismography
Measuring ground tremors
Seismography is the science and practice of detecting and recording earthquakes and other ground vibrations.
The term covers both the methods and the instruments—seismographs—used to measure seismic waves.
Advances in seismography have improved our ability to predict volcanic eruptions.
Assigned meaning
- magnitudeSize or scale
- epicenterPoint above seismic origin
- intensityStrength or force level
- seismicityEarthquake frequency measure
hypocenter · attenuation · amplitude · tomography · inversion · modeling
Graph of ground vibrations
- geophoneGround vibration detector
- accelerometerDevice measuring motion forces
- dataloggerAutomated recording instrument
- transducerEnergy form converter
gravimeter · inclinometer · magnetometer · hydrophone · pendulum · interferometer · stylus · calibration
Imperfection or blame
- subductionPlate descending beneath another
- tectonicOf crustal forces
- lithosphereCrust plus upper mantle
- crustHard outer layer
mantle · earthquake · aftershock · foreshock · rupture · slip · stress · strain
Act of spreading widely
- refractionWave bending between media
- reflectionReturned light or thought
- velocityDirected rate of motion
- amplitudeMaximum oscillation displacement
frequency · wavelength · oscillation · attenuation · dispersion · phase · vibration · pulse
Interconnected system
- stationFixed stopping point
- arrayOrdered collection or display
- detectionAct of finding something
- alertWarning or watchfulness
telemetry · observatory · surveillance · threshold · trigger
Conversion to liquid state
- tsunamiSeismic sea surge
- landslideMass of earth falling
- damageHarm or impairment
- vulnerabilityOpenness to harm
mitigation · preparedness · zonation · probabilistic · deterministic · scenario · exposure · resilience
interpretation
Assigned meaning
seismicity · hypocenter · attenuation · amplitude · tomography · inversion · modeling
seismogram
Graph of ground vibrations
- geophoneGround vibration detector
- accelerometerDevice measuring motion forces
- dataloggerAutomated recording instrument
transducer · gravimeter · inclinometer · magnetometer · hydrophone · pendulum · interferometer · stylus · calibration · sensitivity
fault
Imperfection or blame
- subductionPlate descending beneath another
- tectonicOf crustal forces
- lithosphereCrust plus upper mantle
crust · mantle · earthquake · aftershock · foreshock · rupture · slip · stress · strain · deformation
propagation
Act of spreading widely
- refractionWave bending between media
- reflectionReturned light or thought
- velocityDirected rate of motion
amplitude · frequency · wavelength · oscillation · attenuation · dispersion · phase · vibration · pulse · transverse
network
Interconnected system
alert · telemetry · observatory · surveillance · threshold · trigger
liquefaction
Conversion to liquid state
vulnerability · mitigation · preparedness · zonation · probabilistic · deterministic · scenario · exposure · resilience · insurance
- -graphiesbiography, geography, photography, typography, cartography
- imagingdigital imaging, medical imaging, camera, digital camera, MRI
- measurementscales, gauging, balance, metering, gram
- imaging devicescamera, cameras, digital camera, digital cameras, video camera
seismographymeteorology
Study of atmospheric phenomena
oceanography · astronomy · magnetometry · gravimetry · barometry