{"@type": "dcat:Dataset", "accessLevel": "public", "bureauCode": ["019:20"], "contactPoint": {"@type": "vcard:Contact", "fn": "Ahmad Mohammadi", "hasEmail": "mailto:ahmadmohamadi.gh@gmail.com"}, "dataQuality": true, "description": "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.\n\nMethods 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.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://gdr.openei.org/files/1773/focals.csv", "description": "This catalogs the focal-mechanism solutions for events recorded during Stage 3 of the April 2022 stimulation at Utah FORGE. Data includes event magnitude, location, strike, dip, rake, and average Kagan angle.", "format": "csv", "mediaType": "text/csv", "title": "Focal Mechanisms.csv"}], "identifier": "https://data.openei.org/submissions/8518", "issued": "2025-09-15T06:00:00Z", "keyword": ["Bayesian inversion", "EGS", "FORGE", "Kagan angle", "MTfit", "Milford", "Utah", "Utah FORGE", "amplitude ratios", "deep-learning", "dip", "energy", "event catalog", "focal-mechanisms", "geophysical inversion", "geophysics", "geothermal", "hydraulic stimulation", "magnitude", "moment-tensor inversion", "stage 3", "strike"], "landingPage": "https://gdr.openei.org/submissions/1773", "license": "https://creativecommons.org/licenses/by/4.0/", "modified": "2025-09-16T14:27:32Z", "programCode": ["019:006"], "projectLead": "Lauren Boyd", "projectNumber": "EE0007080", "projectTitle": "Utah FORGE", "publisher": {"@type": "org:Organization", "name": "Texas A and M University"}, "spatial": "{\"type\":\"Polygon\",\"coordinates\":[[[-112.916367,38.483935],[-112.879748,38.483935],[-112.879748,38.5148],[-112.916367,38.5148],[-112.916367,38.483935]]]}", "title": "Utah FORGE: Focal Mechanism Catalog from Stage 3 of the April 2022 Stimulation Test"}