University:
Boston University
Course:
CAS EE 144 | Introduction to Oceanography
Academic year:

2022
Views:

114

Pages:

16
Author:

Triston Franco

Sergio Barrientos Director Científico Servicio Sismológico Universidad de Chile sbarrien@dgf.uchile.cl Crustal Deformations Associated with Earthquakes Example of Active Faults Triangulation, Leveling and Trilateration Col. Sir George Everest 1829 to 1843 A detail of the triangulation of Hanover carried out under Gauss. 1821 - 1825 GPS Systems 24 sat 6 orbits 20.200 km GPS Navstar GLONASS Galileo COMPASS Interferometric Synthetic Aperture Radar Loveless et al., 2010 Loveless et al, 2010 Borah Peak 1983 Earthquake W. Arabasz ELASTIC ! Largest Earthquakes in the World Since 1900 1. Chile 1960 05 22 9.5 -38.29 -73.05 2. Prince William Sound, Alaska 1964 03 28 9.2 61.02 -147.65 3. Off the West 2004 12 26 Coast of Northern Sumatra 9.1 3.30 95.78 4. Near the 2011 03 11 East Coast of Honshu, Japan 9.0 38.322 142.369 5. Kamchatka 1952 11 04 9.0 52.76 160.06 6. Offshore Maule, Chile 2010 02 27 8.8 -35.846 -72.719 7. Off the Coast of Ecuador 1906 01 31 8.8 1.0 -81.5 8. Rat Islands, Alaska 1965 02 04 8.7 51.21 178.50 9. Northern Sumatra, Indonesia 2005 03 28 8.6 2.08 97.01 1950 08 15 8.6 28.5 96.5 10. Assam Tibet World Seismicity 0-70 km 70-300 km 300-700 km Tectonic Framework Vigny, 2008 Page 9 Vigny, 2010 Rupture propagation of 2010 Chile Earthquake E. Kiser, 2010 Crustal Deformation Ando, 2010 Page 11 Interferometric Syntetic Aperture Radar (InSAR) 1.9 ± 0.1 m 1.32 ± 0.05 m Page 12 Coastal Uplift Vargas et al. (2010) Page 13 1 Coseismic static displacement field derived from cGPS sites. C Vigny et al. Science 2011;332:1417-1421 Coseismic static displacement field for survey sites (red arrows) and cGPS sites (green arrows) in the epicentral area (A) horizontal component and (B) vertical component . C Vigny et al. Science 2011;332:1417-1421 GPS Displacements GPS M. Moreno