Routine Data Processing in Earthquake Seismology: With Sample Data, Exercises and Software

ISBN-13: 9789048186969 / Angielski / Twarda / 2010 / 360 str.

Jens Havskov; Lars Ottemoller

Opis

The purpose of this book is to get a practical understanding of the most common processing techniques in earthquake seismology. The book deals with manual methods and computer assisted methods. Each topic will be introduced with the basic theory followed by practical examples and exercises. There are manual exercises entirely based on the printed material of the book, as well as computer exercises based on public domain software. Most exercises are computer based. The software used, as well as all test data are available from http: //extras.springer.com. This book is intended for everyone processing earthquake data, both in the observatory routine and in connection with research. Using the exercises, the book can also be used as a basis for university courses in earthquake processing. Since the main emphasis is on processing, the theory will only be dealt with to the extent needed to understand the processing steps, however references will be given to where more extensive explanations can be found. Includes
Exercises
Test data
Public domain software (SEISAN)
available from http: //extras.springer.com"

Recenzje

From the reviews:

"A book useful for training students in basic analysis skills ... . The book has a clear target audience: the routine analysts who manually process seismic network data. ... The approach could be characterized as suitably utilitarian. A strength of the book is the assumption that operators will use one of the existing seismic data analysis systems. The authors have a fairly wide knowledge of present systems and data recording formats and present some useful critiques of them." (George Helffrich, Geological Magazine, February, 2011)

"The book presents a very good overview of the routine data processing in earthquake seismology. It should find its place at every seismological data center, serving as a general guide, a reminder of the issues that are not part of the data center's everyday routine and an overview for the data center's beginners or for visitors." (Pawel Wiejacz, Pure and Applied Geophysics, Vol. 168, 2011)

Spis treści

Preface. 1. Introduction. 1.1. Earthquakes. 1.2. Recording seismic events and picking phases. 1.3. Locating earthquakes. 1.4. Magnitude. 1.5. Fault plane solution. 1.6. Further data analysis. 1.7. Software. 2. Earth structure and seismic phases. 2.1. Earth structure. 2.2. Seismic rays. 2.3. Seismic phases. 2.4. Travel times. 2.5. Seismic phases at different distances. 2.6. Determination of structure. 2.7. Exercises. 3. Instruments and waveform data. 3.1. Seismic sensors. 3.2. Seismic recorders. 3.3. Correction for instrument response. 3.4. Waveform formats. 3.5. Seismic noise. 3.6. Exercises. 4. Signal processing. 4.1. Filtering. 4.2. Spectral analysis and instrument correction. 4.3. Reading seismic phases. 4.4. Correlation. 4.5. Particle motion and component rotation. 4.6. Resampling. 4.7. Software. 4.8. Exercises. 5. Location. 5.1. Single station location. 5.2. Multiple station location. 5.3. Computer implementation. 5.4. Error quantification and statistics. 5.5 Relative lovation methods. 5.6. Practical considerations in earthquake locations. 5.7. Software. 5.8. Exercises. 6. Magnitude. 6.1. Amplitude and period measurements. 6.2. Local magnitude ML . 6.3. Coda magnitude Mc. 6.4. Body wave magnitude mb. 6.5. Broad band body wave magnitude mB. 6.6. Surface wave magnitude Ms. 6.7. Broad band surface wave magnitude MS. 6.8. Lg – wave magnitude. 6.9. Moment magnitude MW. 6.10. Energy magnitude Me. 6.11. Comparison of magnitude scales. 6.12. Summary. 6.13. Average magnitude and station corrections. 6.14. Adjusting magnitude scales to local or regional conditions. 6.15. Exercises. 7. Focal mechanism and seismogram modeling. 7.1. Fault geometry. 7.2. Source radiation. 7.3. Fault plane solution in practice. 7.4. Obtaining polarity. 7.5. Fault plane solutionusing local data and polarity. 7.6. Composite fault plane solution. 7.7. Fault plane solution using global data. 7.8. Fault plane solution using amplitudes. 7.9 Moment tensor. 7.10. Moment tensor inversion. 7.11. Seismogram modeling. 7.12. Software. 7.13. Exercises. 8. Spectral analysis. 8.1. Attenuation. 8.2. Seismic source model. 8.3. Geometrical spreading. 8.4. Self similarity and seismic source spectra. 8.5. Determination of Q. 8.6. Soil amplification. 8.7. Exercises. 9. Array processing. 9.1. Basic array parameters. 9.2. Beam forming. 9.3. Frequency – wavenumber analysis (fk). 9.4. Array response. 9.5. Processing software. 9.6. Using array measurements for identifying phases. 9.7. Exercises. 10. Operation. 10.1. Data and data storage. 10.2. Routine processing. 10.3. Data exchange. 10.4. Earthquake statistics. 10.5. Software. 10.6. Exercises. References. Software references. Index.