Geology & Geophysics

Dr. Thomas Wagner Program Manager

G-135-E	NSF/OPP Award 02-30094
Station: Special Project
RPSC POC: John Evans
Research Site(s): Deception Island onboard the Spanish Vessels, R/V Hesperides and R/V Las Palmas
Dates in Antarctica: Mid November to late January

High-resolution seismic tomography and earthquake monitoring at Deception Island volcano

Dr. William Sam Douglas Wilcock University of Washington School of Oceanography wilcock@ocean.washington.edu [No website]

Photo not available.

Deploying Team Members:

Andrew Barclay . Patrick John Jonke . Bernard Kevin Mckiernan . Eric Shaun Phillips . Spahr Chapman Webb . William Sam Douglas Wilcock

Research Objectives: This is a collaborative experiment at Deception Island with a Spanish group led by Jesus Ibanez at the University of Granada. The objectives are to deploy ocean bottom seismometers provided by the US Ocean Bottom Seismometer Instrument Pool and land seismometers provided by the Spanish on and around Deception Island. These will record the natural seismicity of the volcano and airgun shots that will be generated by the Spanish from the ship the R/V Hesperides. The science objective is to obtain a P-wave tomographic image of the volcano and understand the relationships between the seismic structure, the distribution and nature of earthquakes and volcanic processes at Deception Island volcano. The first cruise will be onboard the R/V Las Palmas using the Argentine port of Ushuaia. During this cruise project team members will deploy 14 ocean bottom seismometers (OBSs) from the US Ocean Bottom Seismometer Instrument Pool (OBSIP) in the vicinity of Deception Island. The second cruise will be onboard the R/V Hesperides sailing from King George Island and returning to Ushuaia. During this cruise project team members will recover, redeploy and recover again the 14 OBSIP OBSs.