Open AccessMexico 1985: the case for gravity waves
Author(s) -
Lomnitz C.
Publication year - 1990
Publication title -
geophysical journal international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0956-540X
DOI - 10.1111/j.1365-246x.1990.tb04583.x
Subject(s) - geology , seismology , discontinuity (linguistics) , surface wave , wavelength , gravitational wave , seismic wave , wave propagation , geophysics , physics , optics , mathematics , astrophysics , mathematical analysis
SUMMARY The argument for the existence of gravity waves in sedimentary layers during strong earthquakes, such as the 1985 Mexico earthquake, is based on (a) theory, which predicts a discontinuity in surface wave propagation at a finite strain value; (b) effects of stress‐strain non‐linearity in sediments: and (c) observations suggesting the presence of ultra‐short wavelengths in soils during the 1985 Mexico earthquake.