Tsunami Records on Seismometers

Monday, 14 December 2015: 17:45
309 (Moscone South)
Sebastien Allgeyer, Australian National University, Canberra, ACT, Australia and Phil R Cummins, Australian National University, Research School of Earth Sciences, Canberra, Australia
Since the 2004 Sumatra event, observations of tsunamis have been recorded on a variety of geophysical sensors like tide gages, tilt meters and seismometers. Recent advances in tsunami simulations, that include mainly elastic loading, have quantified the interaction between the ocean and the surrounding seafloor, resulting in a better agreement between tsunami observations and simulation. This improvement in the modelling allows us to use tilt observations in the study of tsunami events.

In this study, we will use seismic tilt derived observations for well-recorded events in order to provide a new approach to the study of past events.