Underground earth strain and seismic radiation measurements with a laser interferometer and a dense small-aperture seismic array

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A. Amoruso
L. Crescentini
G. De Luca
R. Scarpa
M. Abril
Al. Cirella

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.

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How to Cite
1.
Amoruso A, Crescentini L, De Luca G, Scarpa R, Abril M, Cirella A. Underground earth strain and seismic radiation measurements with a laser interferometer and a dense small-aperture seismic array. Ann. Geophys. [Internet]. 1997Nov.25 [cited 2022Sep.27];40(5). Available from: https://www.annalsofgeophysics.eu/index.php/annals/article/view/3841
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