A seismometer is an instrument that responds to ground displacement and shaking such as caused by quakes, volcanic eruptions, and explosions. They are...

The Wood–Anderson seismometer (also known as the Wood–Anderson seismograph) is a torsion seismometer developed in the United States by Harry O. Wood and...

An ocean-bottom seismometer (OBS) is a seismometer that is designed to record the earth's motion under oceans and lakes from man-made sources and natural...

(1480 days; 4 years, 19 days). InSight's objectives were to place a seismometer, called Seismic Experiment for Interior Structure (SEIS), on the surface...

Package). The existence of moonquakes was an unexpected discovery from seismometers placed on the Moon by Apollo astronauts from 1969 through 1972. The Apollo...

and uppermost mantle. They range from weak events detectable only by seismometers, to sudden and violent events lasting many minutes which have caused...

earthquake or an underground explosion originates. The primary purpose of a seismometer is to locate the initiating points of earthquake epicenters. The secondary...

were clear differences between geophones and seismometers. Compared to conventional geophones, seismometers are more suitable for detecting extremely small...

& 2 in 1976, with seismometers mounted on top of the lander. The seismometer on the Viking 1 lander failed. The Viking 2 seismometer collected data for...

magnitude 3 quake factors 10³ while a magnitude 5 quake factors 105 and has seismometer readings 100 times larger). The Richter magnitude of an earthquake is...

of the first modern seismometers by James David Forbes, first presented in a report by David Milne-Home in 1842. This seismometer was an inverted pendulum...

motion is measured using a seismometer, a device that detects and records the movement of the Earth's surface. Seismometers are used by seismologists to...

Sokuhō) is a warning issued when an earthquake is detected by multiple seismometers. These warnings are primarily issued by the Japan Meteorological Agency...

the U.S. to perform a successful hard Moon landing with a ruggedized seismometer package in 1962 all failed. The Soviets first achieved the milestone...

caused by the earthquake is gradually reduced. Due to the limitation of seismometers designed in the early years, some seismic magnitude scales began to show...

The Seismic Experiment for Interior Structure (SEIS) is a seismometer and the primary scientific instrument on board the InSight Mars lander launched...

China, Zhang Heng (78–139 AD) improved a water clock and invented a seismometer, and Ma Jun (200–265 AD) invented a chariot with differential gears....

and quakes than anywhere else in the United Kingdom. The first modern seismometer was invented in Comrie in 1840 and the building put up 32 years later...

instruments to be included on the mission were a compact, autonomous seismometer suite called the Lunar Environment Monitoring Station, or LEMS. LEMS...

distance Hypocenter Shadow zone Seismic waves P wave S wave Measurement Seismometer Seismic magnitude scales Seismic intensity scales Prediction Coordinating...

Pendulums are also used in scientific instruments such as accelerometers and seismometers. Historically they were used as gravimeters to measure the acceleration...

10 minutes of flight prior to crashing upon the Moon, to rough-land a seismometer capsule on the Moon, to collect gamma-ray data in flight, to study radar...

believed to have drilled deep into the lunar regolith. Apollo 11 had left a seismometer on the Moon, but the solar-powered unit did not survive its first two-week-long...

earthquake (M9.5), which as of 2024 was the strongest ever recorded on seismometers. The amount, magnitude, and type of seismic activity varies greatly along...

measurement site. Small teleseismic events register only on sensitive seismometers in low background noise locations. In general, seismic waves from earthquakes...

Foundation International Award winner R. John Ellis; inventor of the seismometer John Milne, and at least 111 Fellows of the Royal Society. Notable King's...

to damp seismic vibrations. Information about moonquakes comes from seismometers placed on the Moon from 1969 through 1972. The instruments placed by...

a staff of nearly 500 persons. The lead investigator (P.I.) for the seismometer instrument on the international space mission to Mars, InSight (launched...

into the field of seismology. In the 1920s he co-developed the torsion seismometer, a device tuned to detect short-period seismic waves that are associated...

Personal seismometer...