Embed Size (px)
Citation preview
Page 1 Page 1
Sergio Barrientos Director Científico Servicio Sismológico Universidad de Chile [email protected]
Terremotos en Chile
26 Marzo 2012 UNESCO Workshop Santiago - Chile
Page 2 Page 2
World Seismicity 0-70 km 70-300 km 300-700 km
Page 3 Page 3
Page 4
Vigny, 2008
Marco Tectónico
Page 5
Subduction Factory
Page 6
Thrust Prism
Outerise
Intraplate, Intermediate depth
Shallow crustal
Seismogenic Sources in Chile
fosa
cost
a
Page 7 Page 7
Large Earthquakes in Chile
Astroza and Ruiz (2010)
In general, one quake M >7 ¾ every 10 yr
Page 8 Page 8
Acelerógrafos 27 Feb 2010
Ruiz et al. (2012)
Page 9
Réplicas
Lange et al (2012)
Page 10 Page 10
Slip Distributions
Shao et al., UCSB USGS Sladen, Caltech
Page 11 Page 11
Ruptura 2010 Chile
Eric Kiser, Harvard
Page 12 Page 12
Crustal Deformation
CAP
Fault
Page 13 Page 13
Coastal Uplift
Vargas et al. (2010)
Page 14 Page 14
Crustal Deformation
Page 15 Page 15
Vigny et al, 2011
Page 16 Page 16
Vigny et al., 2011 Lorito et. al., 2011
Page 17
Generación de Tsunamis
displaces a large enough volume of water. Plate slips, causing subsidence and releasing energy into water.
Overriding plate bulges under strain, causing uplift
Accumulation of stresses
Tsunami
