a detailed analysis of some local earthquakes at somma-vesuvius

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ID: 128627
1999
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Abstract
In this paper, we analyze local earthquakes which occurred at Somma-Vesuvius during two episodes of intense seismic swarms, in 1989 and 1995 respectively. For the selected earthquakes we have computed accurate hypocentral locations, focal mechanisms and spectral parameters. We have also studied the ground acceleration produced by the largest events of the sequences (ML 3.0), at various digital stations installed in the area during the periods of higher seismic activity. The main result is that seismicity during the two swarm episodes presents similar features in both locations and focal mechanisms. Strong site dependent effects are evidenced in the seismic radiation and strong amplifications in the frequency band 10-15 Hz are evident at stations located on the younger Vesuvius structure, with respect to one located on the ancient Somma structure. Furthermore, seismic stations show peak accelerations for the same events of more than one order of magnitude apart.
Reference Key
troise1999annalsa Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;C. Troise;C. Godano;F. Di Sena;G. De Natale;U. Coppa;P. Capuano
Journal desalination
Year 1999
DOI
10.4401/ag-3730
URL
http://www.annalsofgeophysics.eu/index.php/annals/article/view/3730
Keywords
seismicity cosmic physics

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