A Network of Superconducting Gravimeters Detects Submicrogal Coseismic Gravity Changes
- 15 October 2004
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 306 (5695) , 476-478
- https://doi.org/10.1126/science.1101875
Abstract
With high-resolution continuous gravity recordings from a regional network of superconducting gravimeters, we have detected permanent changes in gravity acceleration associated with a recent large earthquake. Detected changes in gravity acceleration are smaller than 10–8 meters seconds–2 (1 micro-Galileo, about 10–9 times the surface gravity acceleration) and agree with theoretical values calculated from a dislocation model. Superconducting gravimetry can contribute to the studies of secular gravity changes associated with tectonic processes.Keywords
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