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Classification and rating of strong‐motion earthquake records
Author(s) -
Iyengar R. N.,
Prodhan K. C.
Publication year - 1983
Publication title -
earthquake engineering and structural dynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.218
H-Index - 127
eISSN - 1096-9845
pISSN - 0098-8847
DOI - 10.1002/eqe.4290110308
Subject(s) - principal component analysis , seismology , motion (physics) , variance (accounting) , principal (computer security) , geology , scale (ratio) , statistics , forensic engineering , geography , engineering , mathematics , computer science , cartography , artificial intelligence , accounting , business , operating system
Ninety‐two strong‐motion earthquake records from the California region, U.S.A., have been statistically studied using principal component analysis in terms of twelve important standardized strong‐motion characteristics. The first two principal components account for about 57 per cent of the total variance. Based on these two components the earthquake records are classified into nine groups in a two‐dimensional principal component plane. Also a unidimensional engineering rating scale is proposed. The procedure can be used as an objective approach for classifying and rating future earthquakes.