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Full Moment Tensor Inversion SoftwareSource

The link points to a website at NCEDC to download the full moment tensors inversion software The moment tensor analysis conducted in the current project is based on the full moment tensor model described in Minson and Dreger (2008). The software including source, examples and tutorial can be obtained from ftp://ncedc.org/outgoing/dreger (download file pasi-nov282012.tar.gz). Performance criteria, mathematics and test results are provided by Minson and Dreger (2008), Ford et al. (2008, 2009, 2010, 2012) and Saikia (1994). References: Ford, S., D. Dreger and W. Walter (2008). Source Characterization of the August 6, 2007 Crandall Canyon Mine Seismic Event in Central Utah, Seism. Res. Lett., 79, 637-644. Ford, S. R., D. S. Dreger and W. R. Walter (2009). Identifying isotropic events using a regional moment tensor inversion, J. Geophys. Res., 114, B01306, doi:10.1029/2008JB005743. Ford, S. R., D. S. Dreger and W. R. Walter (2010). Network sensitivity solutions for regional moment tensor inversions, Bull. Seism. Soc. Am., 100, p. 1962-1970. Ford, S. R., W. R. Walter, and D. S. Dreger (2012). Event discrimination using regional moment 665 tensors with teleseismic-P constraints, Bull. Seism. Soc. Am. 102, 867-872. Minson, S. and D. Dreger (2008), Stable Inversions for Complete Moment Tensors, Geophys. J. Int., 174, 585-592. Saikia, C.K. (1994), Modified Frequency-Wavenumber Algorithm for Regional Seismograms using Filons Quadrature: Modeling of Lg Waves in Eastern North America. Geophys. J. Int., 118, 142-158.

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Tags:
EGSanalysisearthquakeenergyexamplefaultfaultingfracturefull moment tensor inversiongenerationgeophysicalgeophysicsgeothermalhydraulicinducedinjectioninversionmicroseismicitymoment tensormonitoringpassiveseismicseismicitysoftwarestimulationtutorial
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National Renewable Energy Laboratory (NREL)about 1 year ago
Pressure-Temperature Simulation at Brady Hot SpringsSource

These files contain the output of a model calculation to simulate the pressure and temperature of fluid at Brady Hot Springs, Nevada, USA. The calculation couples the hydrologic flow (Darcy's Law) with simple thermodynamics. The epoch of validity is 24 March 2015. Coordinates are UTM Easting, Northing, and Elevation in meters. Temperature is specified in degrees Celsius. Pressure is specified in Pascal.

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BradyBrady Hot SpringsInSARInSAR-MEQMEQPoroTomoenergygeothermalinducedmicroearthquakemicroseismicitypressureseismicitysimulationtemperature
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National Renewable Energy Laboratory (NREL)about 1 year ago
Seismic Analysis of Spatio-Temporal Fracture Generation During EGS Resource Development - Deviatoric MT, Fracture Network, and Final ReportSource

This submission contains 167 deviatoric moment tensor (MT) solutions for the seismicity observed two years prior and three years post start of injection activities at The Geysers Prati 32 EGS Demonstration. Also included is a statistical representation of the properties of 751 fractures derived from the analysis of seismicity observed two years prior and three years post start of injection activities at The Geysers Prati 32 EGS Demonstration Project. The locations of the fractures are taken from microseismic hypocenters, the fracture areas are derived from moment magnitudes via scaling relationships, and the azimuths (sigma 1) and dips (sigma 3) are derived from the results of stress analyses.

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CACaliforniaDeviatoric MT SolutionsEGSGeysersHigh Temperature ReservoirThe Geysersanalysiscatalogdeviatoricearthquakeenergyeventfaultfaultingfinal reportfracturefracture networkfracture orientationfracture sizegeophysicalgeophysicsgeothermalhydraulichypocentersinducedinjectioninversionlocationmicroseismicmicroseismicitymomentmonitoringnetworkpassiveseismicseismicityshearstimulationstrainstresstensor
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National Renewable Energy Laboratory (NREL)about 1 year ago
Seismic Analysis of Spatio-Temporal Fracture Generation During EGS Resource Development - Full Moment Tensors and Stress Inversion CatalogsSource

This submission contains 167 full moment tensor (MT) solutions for the seismicity observed two years prior and three years post start of injection activities. Also included are the azimuth and plunge angles for the three main stress directions sigma1, sigma 2 and sigma 3 at the Prati32 EGS demonstration site in the northwest Geysers geothermal reservoir. The data are divided into 15 time periods spanning a range of five years, including two years prior to start of injection until three years post start of injection activities.

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Tags:
EGSHigh Temperature ReservoirPrati 32Spatio-TemporalThe Geysersanalysisarrayazimuthcatalogdemonstrationdevelopmentearthquakeenergyenhanced geothermalfaultfaultingfracturefull MTgenerationgeophysicalgeophysicsgeothermalgeysershydraulicinducedinjectioninversionmicroseismicitymincroseismicitymomentmonitoringpassiveplungereservoirresourceseismicseismic moment tensorseismicitysolutionsstimulationstressstress changesstress orientationtensor
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XLSX
National Renewable Energy Laboratory (NREL)about 1 year ago