GRACE detects coseismic and postseismic deformation from the Sumatra-Andaman earthquake

Details GRACE detects coseismic and postseismic deformation from the Sumatra-Andaman earthquake GRACE detects coseismic and postseismic deformation from the Sumatra-Andaman earthquake

Jul 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007georl..3413302c&link_type=abstract

Geophysical Research Letters, Volume 34, Issue 13, CiteID L13302

Other

24

Geodesy And Gravity: Time Variable Gravity (7223, 7230), Geodesy And Gravity: Satellite Geodesy: Results (6929, 7215, 7230, 7240), Geodesy And Gravity: Seismic Cycle Related Deformations (6924, 7209, 7223, 7230), Seismology: Oceanic Crust, Seismology: Subduction Zones (1207, 1219, 1240)

Scientific paper

We show that spherical harmonic (SH) solutions of the Gravity Recovery and Climate Experiment (GRACE) are now of sufficient quality to observe effects of co-seismic and post-seismic deformation due to the rupture from the Mw = 9.3 Sumatra-Andaman earthquake on December 26, 2004, and its companion Nias earthquake (Mw = 8.7) on March 28, 2005. The improved GGM 03 SH (Level 2) solutions, and improved filtering methods provide estimates with spatial resolution comparable to earlier estimates from range-rate (Level 1) GRACE data. The gravity field disturbance extends over 1800 km along Andaman and Sunda subduction zones, and changes with time following events. Gravity changes may be due to afterslip, viscoelastic relaxation, or other processes associated with dilatation. Satellite gravity measurements from GRACE provide a unique new measure of deformation and post-seismic processes associated with major earthquakes, especially in areas which are primarily oceanic.

Affiliated with

Also associated with

No associations

Rating

GRACE detects coseismic and postseismic deformation from the Sumatra-Andaman earthquake does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with GRACE detects coseismic and postseismic deformation from the Sumatra-Andaman earthquake, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and GRACE detects coseismic and postseismic deformation from the Sumatra-Andaman earthquake will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-779347