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SUMMARY:When the Monsoon rocks the Himalaya - Professor Jean-Philippe Avou
 ac from the Division of Geological and Planetary Sciences at Caltech.
DTSTART:20130606T130000Z
DTEND:20130606T140000Z
UID:TALK45693@talks.cam.ac.uk
CONTACT:Andy Buckley
DESCRIPTION:The Himalaya is exceptional example of an active mountain rang
 e where the processes which have shaped the range over tens of millions of
  years can be observed at work.  In this presentation\, I will give an ove
 rview of what we have been learned from using a variety of different techn
 iques to investigate its structure and current activity. I’ll describe a
 nd how the various observations and data (seismicity\, geodesy\, morphotec
 tonics) can be reconciled from a simple model which involves recurring lar
 ge earthquakes\, aseismic deformation and some coupling between crustal de
 formation and erosion.   A most intriguing observation is that strain and 
 seismic activity in the Himalaya varies seasonally:  as the Himalaya rises
  in response to the huge forces generated by Earth internal dynamics\, it 
 also shows a surprising sensitivity to very small climate-driven stress ch
 anges. I will discuss what can be learned from these observations with reg
 ard to earthquake nucleation process and how our understanding of earthqua
 ke physics combined with improved numerical simulation capabilities can he
 lp evaluate the probability and characteristics of future large earthquake
 s in the Himalaya.
LOCATION:Marine/Wolfson Building lecture hall\, Bullard Labs.
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