Seismology would be a very different science without instruments. The real big advance in seismology happened form around 1900 and onwards and was mainly due to advancement in making better seismograph (more sensitive) and devising timing system so earthquakes could be located.
The purpose of this book is to get a practical understanding of the most common processing techniques in earthquake seismology. The book will deal with manual methods and computer assisted methods. The idea is that each topic will be introduced with the basic theory followed by practical examples and exercises.
The seisan seismic analysis system is a complete set of programs and a simple database for analyzing earthquakes from analog and digital data. With Seisan it is possible using local and global earthquakes to enter phase readings manually or pick them with a cursor, locate events, edit events, determine spectral parameters, seismic moment, azimuth or arrival from 3-componenr stations and plot ep…