Induced Seismic Events

Induced seismic events are of high scientific and economic significance. They are the result of human activities interacting with regional and local tectonics, changing the local crustal stress state by mining, extraction of rock masses, injection of fluids into the rock massif, and by changing the surface loading and pore pressure state near large reservoirs. Within Europe the study of induced seismic events has a long tradition and international scientific organizations have actively stimulated the co-operation in this field. During its General Assembly in September 1994, the European Seismological Society organized the symposium "Induced Seismic Events". The focus of this symposium was concentrated on induced events in central and eastern Europe, as well as in the former Soviet Union. The major contributions to the symposium, and also some Chinese, Canadian, and South African results are presented here. Case studies as well as data analyses and methodological studies are included. Seismologists and specialists working in the field of geohazard prevention will find much information in this volume that is pertinent to their work.

Inhalt
The Mechanism of Mine-collapse Deduced from Seismic Observations.- Tectonic Analysis of Mine Tremor Mechanisms from the Upper Silesian Coal Basin.- Fractal Dimension of Faults Network in the Upper Silesian Coal Basin (Poland): Preliminary Studies.- Characteristics of Mining Tremors within the Near-wave Field Zone.- Induced Seismicity in Large-scale Mining in the Kola Peninsula and Monitoring to Reveal Informative Precursors.- Space-time Interaction Amongst Clusters of Mining Induced Seismicity.- Rock-mass Characterization Using Intrinsic and Scattering Attenuation Estimates at Frequencies from 400 to 1600 Hz.- Variation of Certain Parameters of Regional Stress Tensor under Condition of Rockburst Hazard.- Effects of Rupture Complexity and Stress Regime on Scaling Relations of Induced Microseismic Events.- Simulation of Triggered Earthquakes in the Laboratory.- Decomposition of Seismic Moment Tensors for Underground Nuclear Explosions.- Invariant Kinetic Approach to the Description of a Rock Fracture Process and Induced Seismic Events.- The Character and Extent of Seismic Deformation in the Focal Zone of Gazli Earthquakes of 1976 and 1984, M > 7.0.- Analysis of Microtremors within the Provadia Region near a Salt Leaching Mine.- Induced Seismicity at Wujiangdu Reservoir, China: A Case Induced in the Karst Area.- Seismotectonic Deformation During the Filling of Toktogul Reservoir, Kirghizia.