<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "From Induced Seismicity to Direct Time-Dependent Seismic Hazard"^^ . "The growing installation of industrial facilities for subsurface exploration worldwide requires continuous refinements in understanding both the mechanisms by which seismicity\r\nis induced by field operations and the related seismic hazard. Particularly in proximity of\r\ndensely populated areas, induced low-to-moderate magnitude seismicity characterized by high-frequency content can be clearly felt by the surrounding inhabitants and, in some cases, may\r\nproduce damage. In this respect we propose a technique for time-dependent probabilistic\r\nseismic-hazard analysis to be used in geothermal fields as a monitoring tool for the effects\r\nof on-going field operations. The technique integrates the observed features of the seismic-\r\nity induced by fluid injection and extraction with a local ground-motion-prediction equation.\r\nThe result of the analysis is the time-evolving probability of exceedance of peak ground acceleration, which can be compared with selected critical values to manage field operations.\r\nTo evaluate the reliability of the proposed technique, we applied it to data collected in The\r\nGeysers geothermal field in Northern California between 1 September 2007 and 15 November\r\n2010. We show that in the period considered the seismic hazard at The Geysers was variable\r\nin time and space, which is a consequence of the field operations and the variation of both\r\nseismicity rate and b-value. We conclude that, for the exposure period taken into account\r\n(i.e., 2 months), as a conservative limit, peak ground acceleration values corresponding to the\r\nlowest probability of exceedance (e.g., 30%) must not be exceeded to ensure safe field operations. We suggest testing the proposed technique at other geothermal areas or in regions where\r\nseismicity is induced, for example, by hydrocarbon exploitation or carbon-dioxide storage."^^ . "2012-12" . . "102" . "6" . . "Seismological Society of America"^^ . . . "Bulletin of the Seismological Society of America"^^ . . . "00371106" . . . . . . . . . . . . . . . . "N."^^ . "Maercklin"^^ . "N. Maercklin"^^ . . "Vincenzo"^^ . "Convertito"^^ . "Vincenzo Convertito"^^ . . "Aldo"^^ . "Zollo"^^ . "Aldo Zollo"^^ . . "N."^^ . "Sharma"^^ . "N. Sharma"^^ . . "INGV, Osservatorio Vesuviano, Naples, Italy"^^ . . . "AMRA Scarl, Naples, Italy"^^ . . . "Universita di Napoli Federico II, Naples, Italy"^^ . . . . . . "HTML Summary of #1268 \n\nFrom Induced Seismicity to Direct Time-Dependent Seismic Hazard\n\n" . "text/html" . . . "Geysers" . . . "Geothermal energy production" . . . "Method and procesing" . .