Introduction to Earthquakes

Assignments

One assignment will be given at each class. The assignments must be returned the following class period. These assignments are absolutely important since they are an integral part of the lecture since this is a course in Observational Seismology:

Ass01.pdf - P-wave particle motion
Ass02.pdf - Rayleigh wave particle motion
Ass04.pdf - Phase identification
Ass05.pdf - Rotation to Z, R and T from Z, N, E traces. You will also require the data file f001.csv
Ass06.pdf - computation distances and azimuths for local and regional earthquakes
Ass07.pdf - computation of distances and azimuths of a sphere
Ass08.pdf - distances and azimuths on the non-sperical Earth.
Ass09.pdf - graphical techniques for computing distances on a sphere - an introduction to stereonets
Ass10.pdf - Direct and reflected arrivals for a simple crustal model - surface focus
Ass11.pdf - Direct and reflected arrivals for a simple crustal model - crustal source
Ass12.pdf - Inversion of first arrivals for velocity model
Ass13.pdf - Rays in a constant velocity sphere
Ass14.pdf - Ray amplitudes for a constant velocity sphere
Ass15.pdf - Earthquake location - Geiger's method
Ass16.pdf - Stereonets and focal mechanisms
Ass17.pdf - Surfaces waves and structure

Course Objective This is a course in observational earthquake seismology. The course will cover topics as seismic wave identification, earthquake location, focal mechanisms, magnitude, high frequency ground motion, seismic hazard analysis. The course will consist of equal parts of lecture and lab.	Lecture Topics	Lab Exercises
Software Extensive use will be made of Dr. Herrmann's Computer Program in Seismology series: http://www.eas.slu.edu/People/RBHerrmann/ComputerPrograms.html for the analysis of earthquake data. This package will run on UNIX/LINUX/Windows and MacOS-X machines. Several analysis and utility programs will be used extensively, such as gsac, rdseed, evalresp.	Introduction to course Installation of Computer Programs in Seismology Introduction to the bash shell Seismic Waves Basic Wave types P - wave particle motion S wave particle motion Surface waves Earthquake location Graphical techniques Single station Multiple station Computerized techniques Array processing Geiger method Joint relocation Source Properties Focal mechanisms Moment tensors Data inversion Earth structure Affect upon observations Inversion of observations Earthquake size Magnitude and Moment Body wave Surface wave Waveform inversion Seismic Hazard	Getting a data set from the IRIS DMC Identification of seismic phases Free surface particle motion of body waves Particle motion of surface-waves Graphical earthquake location Computer aided location Using network as a beam Using all stations Focal Mechanisms P-waves S-polarization Waveform inversion Earth structure Surface wave dispersion Receiver functions Joint inversion Magnitude

Introduction to Earthquake Seismology

EASA-462, Saint Louis University, Spring 2007

Academic honesty and disability considerations

Assignments: