Thread: AGU Session: Pedernales earthquake, asperities and earthquake rupture

Started: 2016-07-19 17:21:05
Last activity: 2016-07-19 17:21:05
Topics: AGU Meetings
Forwarded on behalf of:
Anne Meltzer
Lehigh University
ameltzer<at>lehigh.edu
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Dear Colleagues,

We encourage abstract submissions to the Fall AGU session: Subduction Zone Earthquakes and the Role of Asperities in Rupture Propagation and Aftershock Sequences: Insights from the April 16 2016 Pedernales Ecuador.

We welcome abstracts from a range of disciplines on the Pedernales earthquake, the subduction system in Ecuador and adjacent regions in Central and South America, and more broadly on the role of asperities in subduction zone earthquakes. Please see the session description below.

Regards,
Anne Meltzer, Lehigh University
Hugo Yepes, Instituto Geofisico, EPN Quito
Jean Mathieu Nocquet, IRD, Geoazure Nice
Hiroyuki Kumagai, Nagoya University

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Session Description: On April 16, 2016 the subduction zone offshore Ecuador ruptured in a Mw 7.8 earthquake just north of the intersection of the Carnegie Ridge with the trench, a region of increased interseismic coupling as measured by GPS. The event is the largest earthquake in Ecuador since a similar portion of the subduction zone ruptured in 1942. The subduction zone adjacent to and north of the Carnegie Ridge has ruptured on decadal time scales in Mw 7.7-7.8 events, and a Mw 8.8 event in 1906. Increases in observational capabilities provide new opportunities to study the role of asperities in focusing stress, promoting and/or inhibiting rupture propagation, and the role of slow slip events in the earthquake cycle. We invite submissions from a range of disciplines on the Pedernales earthquake, seismicity and deformation along the subduction system in Ecuador and adjacent regions, and the role of asperities in subduction zone earthquakes.


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