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Seismic Experiment in Patagonia and Antarctica (SEPA)

The SEPA project was a deployment of broadband PASSCAL instruments in Chilean Patagonia, the South Shetland Islands, and the Antarctic Peninsula. The initial ten broadband seismographs were deployed during January and February, 1997. Additional sites were added in 1998 and 1999. A complementary 6 month deployment of ocean bottom seismographs in the Bransfield Strait and South Shetland Islands (BSOBS) took place in early 1999. Most of the seismometers were removed in December 1999, but one Patagonia station and three Antarctic stations continued to operate until November 2001. The purpose of SEPA is to study the tectonics and structure of the region.

Maps and Station Locations

Project Summary

Project Stages

Equipment Diagrams

Photo Gallery

Principal Investigators


This project was funded by the NSF Office of Polar Programs and the Instituto Antártico Chileno

Revised: October 22, 2003