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Title: Landslides cause tsunami waves : insights from Aysen Fjord, Chile
Authors: Lastras, Galderic
Amblas, David
Calafat, Antoni M.
Canals, Miquel
Frigola, Jaime
Hermanns, Reginald L.
Longva, Oddvar
Micallef, Aaron
Sepulveda, Sergio A.
Vargas, Gabriel
Batist, Marc De
Daele, Maarten Van
Azpiroz, Maria
Bascunan, Ignacio
Duhart, Paul
Iglesias, Olaia
Kempf, Philipp
Rayo, Xavier
Keywords: Tsunamis -- Research
Tsunamis -- Chile -- Aysen Fjord
Landslides -- Chile -- Aysen Fjord
Earthquakes -- Chile
Tsunamis -- Environmental aspects
Issue Date: 2013
Publisher: Transactions American Geophysical Union
Citation: Lastras, G., Amblas, D., Calafat, A. M., Canals, M., Frigola, J., Hermanns, R. L., ... & Vargas, G. (2013). Landslides cause tsunami waves: insights from Aysén Fjord, Chile. Eos, 94(34), 297-298.
Abstract: On 21 April 2007, an Mw 6.2 earthquake produced an unforeseen chain of events in the Aysén fjord (Chilean Patagonia, 45.5°S). The earthquake triggered hundreds of subaerial landslides along the fjord flanks. Some of the landslides eventually involved a subaqueous component that, in turn, generated a series of displacement waves—tsunami-like waves produced by the fast entry of a subaerial landmass into a water body—within the fjord [Naranjo et al., 2009; Sepúlveda and Serey, 2009; Hermanns et al., 2013]. These waves, with run-ups several meters high along the shoreline, caused 10 fatalities. In addition, they severely damaged salmon farms, which constitute the main economic activity in the region, setting free millions of cultivated salmon with still unknown ecological consequences.
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