International Federation of Digital Seismograph Networks

5C (2015-2016): September 16, 2015 Illapel Earthquake: Seismicity and Segmentation of the Nazca-South America Subudction Zone in Chile

Are you the operator of this network? Update this information.

FDSN Network Information

FDSN code 5C (2015-2016) Operated by University of Florida
Network name September 16, 2015 Illapel Earthquake: Seismicity and Segmentation of the Nazca-South America Subudction Zone in Chile (Illapel Chile RAMP) Deployment region United States
Start date Oct. 28, 2015 End date Oct. 28, 2016
Short description

The Mw 8.3 Illapel earthquake of Spetember 16, 2015, ruptured the Nazca-South America subduction zone for ~200 km along-strike distance. This rupture region is proximal to, but not contiguous with, the rupture regions of the 2010 Maule earthquake, which was extensively studied during the IMAD seismologic and geodetic deployments, and the 1985 Valpariaso, Chile, earthquake. We will deploy 32 seismometers in total to make local and regional recordings of aftershocks of the Illapel earthquake, for at least 5 months, in order to determine details of the main shock rupture extent and aftershock locations and mechanisms, to determine seismic velocity structure of the rupture region and overlying South America crust, and to estimate seismic attenuation and anisotropic structure of this portion of the Nazca-South America plate boundary. We will also attempt to characterize the apparent gap in seismicity between the 2010 M 8.8 and 1985 M>8 earthquake rupture regions (which lie immediately to the south of the gap) and the aftershock activity of the Illapel rupture zone.

Citation Information

Digital Object Identifier (DOI) https://doi.org/10.7914/SN/5C_2015
Citation
Ray Russo, Jay Pulliam (2015): September 16, 2015 Illapel Earthquake: Seismicity and Segmentation of the Nazca-South America Subudction Zone in Chile. International Federation of Digital Seismograph Networks. Other/Seismic Network. 10.7914/SN/5C_2015

Data Access

Data Availability

Data not available from any registered FDSN Web Service provider. For more information, please contact the operator of this network: University of Florida

The irisws-fedcatalog web service provides data discovery and access across multiple data centers.
Full fedcatalog information for this network