Source Mechanism

Course Description

The purpose of this lecture is to provide you with necessary basic knowledge for determination of focal mechanism by seismic wave analysis. It includes a manual P-wave first motion method and moment tensor inversion.




2 day(s)


1. Terms and parameters of seismic fault

2. Double couple model for seismic source

3. Focal mechanism diagram

   3.1 Basic concept of focal mechanism diagram

   3.2 How to see and interpret focal mechanism diagram

4. Determination of focal mechanism by P-wave first motion method

   4.1 Manual method

   4.2 P-first motion method using PC software

5. Determination of focal mechanism by moment tensor inversion

  5.1 Moment tensor

  5.2 Moment tensor inversion of waveform data

Lecture note files of this course can be downloaded.