title: Geophysics. Silent heralds of megathrust earthquakes?
authors.affiliation: Laboratoire de Sismologie Expérimentale, CNRS 7580 Département de Sismologie de l'Institut de Physique du Globe de Paris, 4 pl. Jussieu, 75252 Paris, France. hirn@ipgp.jussieu.fr
authors.forename: Alfred
authors.initials: A
authors.lastname: Hirn
authors.forename: Mireille
authors.initials: M
authors.lastname: Laigle