CHAPTER 1

SEISMICITY PRECURSORS FOR ACTIVE MONITORING OF EARTHQUAKES

Valeri A. Korneeva

Contents

1. Introduction

2. Seismicity Precursors

2.1. Parkfield M6, 2004

2.2. Loma Prieta M7.0 1989

2.3. Seismic noise

3. Discussion

3.1. Similarity of precursor patterns

3.2. Precursor mechanism

3.3. Probability and earthquakes

3.4. Active monitoring and earthquake prediction

3.5. Short-term predictions and earthquake triggering

4. Conclusions

Acknowledgments

References

1. INTRODUCTION

The town of Parkfield, located on the San Andreas Fault (SAF) in central California, has been the site of intensive, multidisciplinary earthquake studies since the 1970s. Moderate-sized earthquakes of about magnitude 6 (M6.0) have occurred on the Parkfield section of the SAF ...

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