D28 Interferograms over Iceland including SAR acquisitions, second delivery – TOUL

In the second year of RETINA, we have deviated slightly from the above objectives, concentrating on the issue of stress transfer related to the earthquake sequence of June 2000. We have developed a 2-step estimation process. First, we solve a non-linear inverse problem to estimate the following parameters related to fault geometry: strike, dip, rake, easting, northing, depth, length, and width. Next, we solve a linear inverse problem to estimate the distribution of slip (rupture) on the fault plane. The results have been published in the international, peer-reviewed literature:

Pedersen, Rikke., Sigurjon Jónsson, Thora Árnadóttir, Freystein Sigmundsson, and Kurt L. Feigl, Fault slip distribution derived from joint inversion of InSAR and GPS measurements of two June 2000 Mw 6.5 earthquakes in South Iceland, Earth Plan. Sci. Lett. 2003.

In addition, we have used INSAR monitoring to publish the following articles in the international, peer-reviewed literature :

Pagli, C., R. Pedersen, F. Sigmundsson, and K.L. Feigl, Triggered seismicity on June 16, 2000 on the Reykjanes Peninsula, SW Iceland captured by radar interferometry, Geophys. Res. Lett., 30 (6), 1273, doi:10.1029/2002GL015310, 2003.

Jonnsson, S., P. Segall, R. Pedersen, and G. Bjornsson, Post-earthquake ground movements correlated to pore-pressure transients, Nature, 424 (10 July 2003), 179 - 183, 2003.

Pedersen, R., S. Jónsson, T. Árnadóttir, F. Sigmundsson, and K.L. Feigl, Fault slip distribution derived from joint inversion of InSAR and GPS measurements of two June 2000 Mw 6.5 earthquakes in South Iceland, Earth Plan. Sci. Lett., 213, 487-502, 2003.

Pedersen, R., F. Sigmundsson, K.L. Feigl, and T. Árnadóttir, Coseismic interferograms of two MS=6.6 earthquakes in the South Iceland Seismic Zone, June 2000, Geophys. Res. Lett., 28, 3341-3344, 2001.