Offshore-aftershock sequence of the Mw 8.1 2014 Iquique earthquake.

Lange, Dietrich , Grevemeyer, Ingo , Hannemann, Katrin, Kopp, Heidrun , Krabbenhoeft, Anne, Barrientos, Sergio, Contreras-Reyes, Eduardo and Vera, Emilio (2017) Offshore-aftershock sequence of the Mw 8.1 2014 Iquique earthquake. Open Access [Poster] In: EGU General Assembly 2017. , 23.-28.04.2017, Vienna, Austria .

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Abstract

On 1 April 2014, a Mw 8.1 earthquake ruptured a portion of the subduction zone in northern Chile offshore Iquique between 19.5◦S to 21◦S. A large earthquake had been expected in the subduction zone off northern Chile, because it had not ruptured in a megathrust earthquake since a M∼8.8 event in 1877. The 2014 earthquake did only affect the northern region of the 1877 rupture and left an unbroken segment to the South. In December 2014
we deployed an offshore network of 15 ocean-bottom-seismometers (OBS) between 19◦S and 22◦S using the Chilean Navy ship OPV Toro, covering the aftershock zone of the 2014 Iquique event and the un-ruptured offshore
domain in the South. The network was recovered in November 2015 with RV SONNE.

Document Type: Conference or Workshop Item (Poster)
Keywords: Offshore-aftershock sequence, Mw 8.1, 2014, Chile
Research affiliation: OceanRep > GEOMAR > FB4 Dynamics of the Ocean Floor > FB4-GDY Marine Geodynamics
Date Deposited: 07 Dec 2017 14:06
Last Modified: 19 Dec 2017 11:27
URI: https://oceanrep.geomar.de/id/eprint/40438

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