Mathematics – Logic
Scientific paper
May 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993georl..20..911p&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 20, no. 10, p. 911-914.
Mathematics
Logic
12
Earthquakes, Geological Faults, Probability Density Functions, Mathematical Models, Seismology
Scientific paper
A model for the 40 s subevent of the 1980 Irpinia earthquake is obtained from levelling data. An inverse method has been used to compute fault parameters, based on the computation of the probability density on strike and dip angles and midpoint fault location. The highest probability model consists of a fault almost parallel to the one associated to the first subevent. This fault dips about 80 deg SW, forming a small grabenlike structure with the main fault. Fault strike and dip parameters appear well constrained by levelling data, to within 10 deg (at 95 percent confidence level). It is noteworthy that seismological and accelerometric data were not able to well constrain the fracture mechanism of this subevent, which was the most controversial one in literature.
de Natale Giuseppe
Pingue Folco
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