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on constant tectonic loading are as good as or better Other geophysical measurements may also bere- than time-varying earthquake likelihood models ted to earthquake occurrence, and such relationships determinedfrom the evolving stress ?eld. are examinedin some of the papers herein. ITABA et al. One approach to understanding earthquakes isto compare groundwater and crustal deformation to create synthetic earthquake catalogues using certain seismicity recorded on newly installed stations to test assumptions regarding the physics of the process to previouslyobserved preseismicchanges inShikoku see what features of real catalogues can be explained and theKii Peninsula prior to earthquakes in Tonankai by variations in physical properties. SMITH and and Nankai, Japan. They ?nd strainchanges due to DIETERICH takethis approach and model aftershock slow slip events on the plate boundary, but do not ?nd sequences using 3-D stress heterogeneity in the form signi?cant changes in groundwater at that time. of Coulomb static stress change analysisand rate- We conclude the volume with another comparison state seismicity equations calculatedin regions of of seismicity and GPS.
OGATA compares anomalies of geometrically complex faults. Their syntheticmodels seismic activity with transient crustaldeformations match severalfeatures of real catalogues such as preceding the 2005 M 7.0 earthquake west of - earthquakeclustering and Omoridecay,and the kuoka, Japan, concluding that aseismicsliptriggered presence of earthquakes in regions where simpler changes in seismicity rates as well as in GPS record- Coulomb stress modelling predicts "stress shadows" ings during the ten years leading up to the earthquake.
Contents
First Results of the Regional Earthquake Likelihood Models Experiment.- New Zealand Earthquake Forecast Testing Centre.- The Area Skill Score Statistic for Evaluating Earthquake Predictability Experiments.- Space—Time Earthquake Prediction: The Error Diagrams.- Identifying Seismicity Levels via Poisson Hidden Markov Models.- Distribution of Seismicity Before the Larger Earthquakes in Italy in the Time Interval 1994-2004.- Predicting the Human Losses Implied by Predictions of Earthquakes: Southern Sumatra and Central Chile.- Space- and Time-Dependent Probabilities for Earthquake Fault Systems from Numerical Simulations: Feasibility Study and First Results.- Spatial Separation of Large Earthquakes, Aftershocks, and Background Seismicity: Analysis of Interseismic and Coseismic Seismicity Patterns in Southern California.- Earthquake Source Zones in Northeast India: Seismic Tomography, Fractal Dimension and b Value Mapping.- Seismic Hazard Evaluation in Western Turkey as Revealed by Stress Transfer and Time-dependent Probability Calculations.- Correlation of Static Stress Changes and Earthquake Occurrence in the North Aegean Region.- Aftershock Sequences Modeled with 3-D Stress Heterogeneity and Rate-State Seismicity Equations: Implications for Crustal Stress Estimation.- Earthquake Recurrence in Simulated Fault Systems.- Continuous Observation of Groundwater and Crustal Deformation for Forecasting Tonankai and Nankai Earthquakes in Japan.- Anomalies of Seismic Activity and Transient Crustal Deformations Preceding the 2005 M 7.0 Earthquake West of Fukuoka.
