This submission includes focal-mechanism solutions derived from the Utah FORGE April 2022 Stage-3 stimulation. Waveforms were extracted around each event (short windows bracketing origin times) from the downhole three-component arrays in wells 58-32, 78-32, and 56-32 and the surface station UU.FORK; an initial Stage-3 catalog of several thousand located events was narrowed to ~1,200 preselected events and processed to produce a final high-quality set of 717 focal mechanisms. Methods combined automated phase picking with a noise-resistant deep-learning polarity classifier, simple amplitude-ratio measurements around arrivals, and Bayesian moment-tensor inversion using MTfit. Polarities and amplitude ratios were weighted by per-measurement confidence, posterior ensembles were sampled to quantify uncertainty, and solutions with low angular uncertainty (Kagan angle < 20 degrees) form the distributed high-quality catalog.
L o a d i n g
Organization
National Renewable Energy Laboratory (NREL) - view all
Update frequencyunknown
Last updated4 days ago
Format
OverviewBayesian inversionEGSFORGEKagan angleMTfitMilfordUtahUtah FORGEamplitude ratiosdeep-learningdipenergyevent catalogfocal-mechanismsgeophysical inversiongeophysicsgeothermalhydraulic stimulationmagnitudemoment-tensor inversionstage 3strike
Additional Information
KeyValue
Dcat Issued2025-09-15T06:00:00Z
Dcat Modified2025-09-16T14:27:32Z
Dcat Publisher NameTexas A and M University
Guidhttps://data.openei.org/submissions/8518
Harvest Object Id1eed0979-6d78-4f3f-b80c-04b3fc081ffe
Harvest Source Id4eb7107f-a2b1-40e3-b36a-8161aa98a56e
Harvest Source TitleOpenEI Data Portal
