Abstract This paper presents a novel method for rapidly addressing the earthquake-induced damage identification task in historic masonry towers. The proposed method, termed DORI, combines operational modal analysis (OMA), FE modeling, rapid surrogate modeling (SM) and non-linear Incremental dynamic (IDA). While OMA-based Structural Health Monitoring methods using statistical pattern recognition...

The Parkfield earthquake of June 28, 1966 (04:26:12.4 GMT)is studied using short-period and long-period teleseismic records. It is found that (1) Mb = 5.8 and M~ = 6.4 as compared to Mb = 5.4 and Ms = 5.4 for the foreshock (04:08:54) , (2) both the Rayleigh and Love wave radiation patterns conform to those of a double couple at a depth of about 8.6 km, (3) the main shock can be represented by a...

Source characteristics of the Sept. 19, 1985 Michoacan, Mexico earthquake and its aftershock on Sept. 21 were inferred from broadband and short-period teleseismic GDSN records. We Fourier-transformed the P waves, corrected for instrument response, attenuation, geometrical spreading, and radiation pattern (including the depth phases), and then averaged to obtain the teleseismic source spectrum f...