seismometer
Ground vibration sensor
A seismometer is an instrument that detects and records ground vibrations, especially those caused by earthquakes.
The device measures the direction, intensity, and duration of seismic waves traveling through the earth.
Networks of seismometers allow scientists to locate earthquake epicenters and estimate magnitude.
The seismometer registered a 4.2 tremor overnight.
Repeated back-and-forth movement
- resonanceAmplified oscillation at natural frequency
- harmonicOf musical overtones
- periodicOccurring at intervals
- tremorInvoluntary rhythmic shaking
shockwave · undulation · pulsation · displacement · velocity · acceleration · damping · microseism
Seismic ground movement
- tectonicsStudy of crustal deformation
- faultImperfection or blame
- subductionPlate descending beneath another
- epicenterPoint above seismic origin
lithosphere · mantle · crust · rift · volcano · geophysics · aftershock · foreshock
Size or scale
- amplitudeMaximum oscillation displacement
- frequencyRate of recurrence
- waveformGraphed oscillation pattern
- intensityStrength or force level
calibration · precision · spectrogram · P-wave · S-wave · logarithmic · hypocenter · depth
Ground vibration detector
- gravimeterGravity-measuring instrument
- magnetometerInstrument measuring field strength
- inclinometerDevice measuring slope angles
- hydrophoneSubmersible sound sensor
transducer · datalogger · pendulum · piezoelectric · galvanometer
Seismic sea surge
- liquefactionConversion to liquid state
- collapseSudden structural failure
- disasterSudden ruinous event
- rescueSave from harm
early-warning · alert · monitoring · preparedness · evacuation
oscillation
Repeated back-and-forth movement
- resonanceAmplified oscillation at natural frequency
- harmonicOf musical overtones
- periodicOccurring at intervals
tremor · shockwave · undulation · pulsation · displacement · velocity · acceleration · damping · microseism · signal
earthquake
Seismic ground movement
- tectonicsStudy of crustal deformation
- faultImperfection or blame
- subductionPlate descending beneath another
epicenter · lithosphere · mantle · crust · rift · volcano · geophysics · aftershock · foreshock · magma
magnitude
Size or scale
- amplitudeMaximum oscillation displacement
- frequencyRate of recurrence
- waveformGraphed oscillation pattern
intensity · calibration · precision · spectrogram · P-wave · S-wave · logarithmic · hypocenter · depth
geophone
Ground vibration detector
- gravimeterGravity-measuring instrument
- magnetometerInstrument measuring field strength
- inclinometerDevice measuring slope angles
hydrophone · transducer · datalogger · pendulum · piezoelectric · galvanometer
tsunami
Seismic sea surge
- liquefactionConversion to liquid state
- collapseSudden structural failure
- disasterSudden ruinous event
rescue · early-warning · alert · monitoring · preparedness · evacuation
- seismologyearthquake, earthquakes, epicenter, fault zones, hypocenter
- measuring instrumentsruler, tape measure, measuring tape, caliper, calipers
- metersthermometer, speedometer, odometer, barometer, pedometer
- sensorsbiosensors, temperature sensor, pressure sensors, heat sensor, ammeter
- field instrumentsrock hammer, inclinometer, hand lens, clinometer, core drill
- geophysical sensorsgeophone, accelerometer, inclinometer, gravimeter, magnetometer
seismometerbarometer
Instrument gauging atmospheric pressure
thermometer · hygrometer · altimeter · anemometer · magnetometer
seismometerstabilizer
Thing ensuring steadiness
level · plumb line · gyroscope · dampener · shock absorber