Please find enclosed the information on the IASPEI – REGIONAL ASSEMBLY of the Latin American and Caribbean Seismological Commission – LACSC, BOGOTA, COLOMBIA: JULY 23 – 25, 2014. The session ANST – ANTHROPOGENIC SEISMICITY is conveyed by Stanislaw Lasocki (Institute of Geophysics Polish Academy of Sciences, Warsaw, Poland), Aderson Farias do Nascimento (Departamento de Fisica – UFRN – Natal RN, Brasil) and Carlos Alberto Vargas Jimenez (Departamento de de Geociencias – Universidad Nacional de Colombia).
The phenomenon of anthropogenic seismic activity is an unwanted rockmass response to human technological processes. With rising demands for energy and minerals this type seismicity appears in areas previously known as aseismic and in association with quite diverse technological processes. The induced earthquakes accompany underground and open-pit mining, conventional and unconventional hydrocarbon production, reservoir impoundment, geothermal energy production, underground fluid and gas storage including carbon sequestration and many other technological processes that perturb the boundary conditions in the affected rockmass. The socio-economic impact of the induced seismicity is very significant. On the one hand, these events, though being small compared to tectonic earthquakes, because of their shallowness are often damaging and occasionally devastating. On the other hand, the hazards associated with triggered earthquakes can be and are often overrated. It is clear that vital technological activities can lose public confidence unless the accompanying seismic risks are accurately assessed and properly presented to public. Finally, earthquakes whose origin, whether natural or anthropogenic, is under debate, pose questions that need to be answered with high certainty.
The goal of this session is to recognize the severity of the induced and triggered seismicity world-widely, and to summarize the present state of knowledge about these seismic processes. We welcome both cross-sectional multi-aspect theoretical, methodical and experimental studies as well as interesting case histories linked to particular inducing technologies. The session is meant, among others, to help in identifying common areas of seismic processes induced by different technologies. Consideration on the predictability and controllability of anthropogenic earthquakes are especially invited.
The deadline for submission of abstracts is May 23, 2014.
For details and to submit an abstract please contact the web page: http://geoslac.org/english/
As the deadline for submitting an abstract for EGU 2014 general assembly in Vienna is approaching (16 January!), I would like to draw your attention on three sessions that are induced-seismicity related:
Induced and Triggered Seismicity: Theory and Observations (co-organized)
Convener: Philippe Jousset | Co-Conveners: Roland Gritto , Matteo Lupi
Link: Abstract submission
Earthquake source processes – Imaging methods, physical rupture models and scaling (co-organized)
Convener: P. Martin Mai | Co-Conveners: Grzegorz Kwiatek, Rebecca M. Harrington, Henriette Sudhaus, Alice Gabriel
Link: Abstract submission
Induced seismicity and geomechanics in mining and reservoir production: Laboratory and field perspective.
Convener: Grzegorz Kwiatek | Co-Conveners: Hiroki Sone, Beata Orlecka-Sikora, Katrin Plenkers, Philip Benson, D. Kuehn
Link: Abstract submission
On behalf of Conveners, I would like to draw your attention to the Induced Seismicity session organized by Ivan Wong, Justin Rubinstein and Thomas Braun during SSA2014 meeting in Anchorage, Alaska. The meeting will take place between 30 April – 2 May, 2014, and the abstract submission deadline is January 10th, 2014. Below we attach the abstract of the Induced Seismicity session; the detailed information on the conference can be found here together with SSA2014 programme webpage.
Recent damaging earthquakes in Oklahoma, Colorado, and Arkansas have renewed interest in induced seismicity. Across the central and eastern United States, the seismicity rate has doubled over the past 11 years. This rate change can largely be attributed to earthquakes induced by fluid injection associated with oil and gas production. Given the occurrence of damaging earthquakes and the large increase in seismicity rate observed in the United States, it is of critical importance that induced earthquakes are better understood such that their hazards may be mitigated. Topics of interest to address these issues include: the causes of fluid-injection induced earthquakes; methods to distinguish natural and induced earthquakes; why some wells trigger earthquakes, but the vast majority of wells do not; how fluid-injection induced earthquakes may be controlled; and how to estimate the hazard associated with already developed and new fluid injection fields. We invite papers on all forms of induced seismicity but particularly those associated with waste water-injection, geothermal production, carbon sequestration, and hydraulic fracturing. Papers from industry are particularly welcome to better inform the research community on the state of knowledge and practices within the community. As part of this session, a roundtable discussion will be held to discuss (1) the factors influencing induced seismicity, (2) the uncertainties in characterizing induced seismicity, (3) strategies to control induced seismicity, and (4) methods to characterize the earthquake hazards associated with fluid injection.
Thanks to Thomas Braun for information regarding the session.
I would like to draw your attention to another session related to induced seismicity that will take place during EGU European Geoscience Union General Assembly in Vienna between 27 April – 02 May 2014. The session “Induced seismicity and geomechanics in mining and reservoir production: Laboratory and field perspective” will be conveyed by Grzegor Kwiatek (GFZ Potsdam), Hiroki Sone (GFZ Potsdam), Beata Orlecka-Sikora (IGF PAS), Katrin Plenkers (GMuG), Philip Benson (University of Portsmouth) and Daniela Kuehn (NORSAR). We encourage you to submit the abstract to the session.
The need to refine and further develop exploitation techniques of georesources pose many fundamental problems to be addressed including mitigation of seismic hazard caused by human mining activity while preserving efficient and safe exploitation at the same time. The key point in mitigation of seismic hazard is to understand the interactions and coupling between rock mass properties, exploitation techniques applied, and exploitation-induced stress build up and transfer leading to the occurrence of dangerous seismic activity. Various studies are performed nowadays to address these interactions, either by analyzing the outcome of laboratory experiments on rock samples or by direct investigation of induced seismicity that occurred in-situ. This session aims on bringing together and integrate studies related to geomechanical understanding of processes occurring during exploitation of georesources leading to the occurrence of induced seismicity. We welcome contributions from laboratory studies, numerical modeling, as well as analysis of induced seismicity related to exploitation of georesources (mining, geothermal, oil-gas).
Looking forward seeing you in Vienna!
Final programme of the 24th IMS Institute of Mining Seismology seminar and courses on “Monitoring and modelling seismic rock mass response to mining” is available for download. The seminar will take place on 5th and 6th of May, 2014 in Asara Wine Estate, Stellenbosch, South Africa. The seminar will be followed by courses on 7th and 8th of May. See the attached programme for details.
Download: 2014 IMS Seminar and Courses – Final Programme