Active Tectonics and Physics of Earthquakes

Institution:
IUSS Pavia
Specialization:
ES - Engineering Seismology
Term:
Fall 2011
Teacher(s):
JOHN B. BERRILL, JARG PETTINGA
Credits:
6
Date (from - to):
09/01/2012 – 03/02/2012

The first part of this course will introduce you to basic concepts such as the plate tectonic driver; brittle and ductile rock deformation, rock stress, strain, friction and the concept of effective stress in rock masses.  From this we progress onto fault and fold classification, terminology and fault mechanics; active fault systems and structural styles of deformation in a tectonic geomorphologic context.  Following on we study fault growth and the importance of fault segmentation; spatial and temporal displacement variations and slip transfer; the classical versus contemporary models for the earthquake cycle; earthquake fault rupture and the role of asperities and rupture barriers; earthquake source parameters, scaling laws.  We will employ simple source models to illustrate the effect of rupture characteristics on ground motion, and will also examine precursory phenomena and earthquake prediction.
A core course component is the introduction to paleoseismic methodology and quantification of the earthquake hazard using the fault displacement history and estimates of seismic moment and moment magnitude. Selected case studies will include recent research advances from New Zealand and California dealing with both regional as well as fault specific hazard assessment.