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...

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

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...

& 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...

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

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

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...

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

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