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Towards fast detection of tsunamigenic submarine landslides

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/persons/resource/brune

Brune,  Sascha
2.5 Geodynamic Modelling, 2.0 Physics of the Earth, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

/persons/resource/babeyko

Babeyko,  Andrey
2.5 Geodynamic Modelling, 2.0 Physics of the Earth, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

/persons/resource/stephan

Sobolev,  Stephan V.
2.5 Geodynamic Modelling, 2.0 Physics of the Earth, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

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Brune, S., Babeyko, A., Sobolev, S. V. (2008): Towards fast detection of tsunamigenic submarine landslides - International Geological Modelling Conference - GeoMod 2008 (Florence, Italy 2008), International Geological Modelling Conference - GeoMod 2008 (Florence, Italy).


Zitierlink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_237557
Zusammenfassung
Submarine landslides are one of the most dangerous tsunami sources. They can displace huge amounts of sediments from the continental slope into the deep ocean. Due to their long period signal, landslides can not be easily detected and recognized by common seismological methods. Here we present a method of detecting huge submarine landslides by means of tiltmeters, as a possible tool in future tsunami early warning systems. The dislocation of several hundred cube kilometers of sediment produces an elastic response of the earth. We analyze this response with a mathematical model and calculate the theoretical tilt signal. Further we describe an inversion routine providing the slide volume as well as the maximum slide velocity.