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http://hdl.handle.net/2122/1529
Authors: | Amoruso, A.* Crescentini, L.* De Luca, G.* Scarpa, R.* Abril, M.* Cirella, Al.* |
Title: | Underground earth strain and seismic radiation measurements with a laser interferometer and a dense small-aperture seismic array | Issue Date: | Oct-1997 | Series/Report no.: | 5/40 (1997) | URI: | http://hdl.handle.net/2122/1529 | Keywords: | strain seismic array seismometry |
Subject Classification: | 04. Solid Earth::04.06. Seismology::04.06.10. Instruments and techniques | Abstract: | This paper describes two geophysical instruments, installed in the underground physics laboratories of Gran Sasso (LNGS-INFN), located in the seismic zone of the Central Apennines, Italy. These instruments monitor strain and seismic radiation with very high sensitivity: one is a 90 m-long laser interferometer, sensitivity 3 x 10-12, frequency response 10-7-10-2 Hz, and has been operating since 1994. The other is a small-aperture seismic array composed of 21 three-component short period (Mark L4C-3D) and 3 broadband (Guralp CMG-3ESP) seismometers. This dense array will be in operation at the beginning of 1998. |
Appears in Collections: | Annals of Geophysics |
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02 amoruso.pdf | 3.55 MB | Adobe PDF | View/Open |
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