@article{ref1,
title="A subaqueous hazard map for earthquake-triggered landslides in Lake Zurich, Switzerland",
journal="Natural hazards",
year="2018",
author="Strupler, M. and Danciu, L. and Hilbe, M. and Kremer, K. and Anselmetti, F. S. and Strasser, M. and Wiemer, S.",
volume="90",
number="1",
pages="51-78",
abstract="The awareness of geohazards in the subaqueous environment has steadily increased in the past years and there is an increased need to assess these hazards in a quantitative sense. Prime examples are subaqueous landslides, which can be triggered by a number of processes including earthquakes or human activities, and which may impact offshore and onshore infrastructure and communities. In the literature, a plenitude of subaqueous landslide events are related to historical earthquakes, including cases from lakes in Switzerland. Here, we present an approach for a basin-wide earthquake-triggered subaquatic landslide hazard assessment for Lake Zurich, which is surrounded by a densely populated shoreline. Our analysis is based on high-resolution sediment-mechanical and geophysical input data. Slope stabilities are calculated with a grid-based limit equilibrium model on an infinite slope, which uses Monte Carlo sampled input data from a sediment-mechanical stratigraphy of the lateral slopes. Combined with probabilistic ground-shaking forecasts from a recent national seismic hazard analysis, subaquatic earthquake-triggered landslide hazard maps are constructed for different mean return periods, ranging from 475 to 9975 years. Our results provide a first quantitative landslide hazard estimation for the lateral slopes in Lake Zurich. Furthermore, a back-analysis of a case-study site indicates that pseudostatic accelerations in the range between 0.04 and 0.08 g were needed to trigger a well-investigated subaqueous landslide, dated to ~2210 cal. years B.P.<p /> <p>Language: en</p>",
language="en",
issn="0921-030X",
doi="10.1007/s11069-017-3032-y",
url="http://dx.doi.org/10.1007/s11069-017-3032-y"
}