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EGU 2015. session "Induced and Triggered Seismic Activity: Observation, Theory, and Hazard Analysis"
From: Philippe Jousset <pjousset@xxxxxxxxxxxxxx>EGU 2015. session "Induced and Triggered Seismic Activity: Observation, Theory, and Hazard Analysis"
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Dear Colleagues,
We would like to draw your attention on the SM3.2/EMRP4.1/ERE2.5/NH4.4 session at the next EGU meeting in Vienna (12-17 April, 2015; http://www.egu2015.eu), on:
Induced and Triggered Seismic Activity: Observation, Theory, and Hazard Analysis
Deadline for support applications: November 28, 2014
Deadline for receipt of abstracts: January 7, 2015
Induced and triggered seismicity are common phenomena associated with sub-surface exploration and remote seismic events, respectively, and have been related to hydrocarbon exploration, geothermal exploitation, open-pit and underground mining operations, CO2 sequestration, and filling of new water reservoirs. Public awareness and concern of induced seismicity has become ubiquitous in locations where subsurface exploration and storage is carried out in close proximity to communities. Of particular concerns are massive fluid injections for hydro-fracturing to increase subsurface permeability as well as long-term injection for the purpose of long-term storage. These concerns have led to regulations to passively monitor induced seismicity and consequently to a wealth of continuous seismic data. In contrast to the increase in data volume, our understanding of the relationship between exploration techniques and induced seismicity as well as earthquake-earthquake interactions is still limited. New processing methods to analyze data and quantitative models to improve our understanding of the causal relationship between exploration and seismicity are needed. The current session is intended to provide a platform to present the latest research and field studies and theoretical aspects related to induced and triggered seismicity. Topics to be presented include temporal variations of physical parameters in reservoirs and natural environments including stress and pressure changes, spatial-temporal patterns of seismicity, source mechanisms of micro- or larger scale seismicity, mechanisms for induced events and seismic interaction, as well as, fracture-induced anisotropy. Contributions are sought from fundamental and applied research covering the fields of oil and gas exploration including hydro-fracturing, geothermal exploitation particularly related to enhanced geothermal systems, open pit and underground mining, CO2 storage, and other fields such as volcano-seismology where induced and triggered seismicity is observed.
Philippe Jousset, Roland Gritto, Ulrich Wegler
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