summary of seismology component of the course
DESCRIPTION
Summary of seismology component of the course. Sources Waves Location Magnitude/Intensity Focal mechanisms Other topics. Sources. source models Double couple forces Moment tensors. Waves. Notation (teleseisms) P, S = mantle phases K = outer core P wave - PowerPoint PPT PresentationTRANSCRIPT
Summary of seismology component of the course
• Sources• Waves• Location• Magnitude/Intensity• Focal mechanisms• Other topics
Sources
• source models• Double couple forces• Moment tensors
Waves• Notation (teleseisms)
P, S = mantle phasesK = outer core P waveI,(J) = inner core P and S
c = reflection from the outer corepP, sP = reflections from the earth surface near the
source(Lower case = reflection)
PKP = P wave in mantle, outer core, mantlePcP = Mantle phase reflected from the outer core
Waves• Notation (local)
– Pg– Pn– P*
• Near field / Far field
Location
• General principles
• Station corrections
• depth control
Magnitude and Intensity
• Mw, Mwp, ML, Mb, etc.
• Intensity scales
Focal Mechanisms
Fault Plane Solutions of Earthquakes, Northeast India
Kayal et al., 2006
Other topics
• Hazards and damaging effects,
• prediction and forecasting,
• instruments, networks, arrays, etc.