{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Charles S. Mueller", "hasEmail": "mailto:cmueller@usgs.gov"}, "description": "A methodology has been developed at the U.S. Geological Survey (USGS) for making earthquake catalogs for seismic hazard analysis.  A new catalog is assembled from several preexisting catalogs.  Uniform moment magnitudes and related parameters for estimating unbiased seismicity rates are calculated.  Duplicates, explosions, mining-related earthquakes, and induced earthquakes are flagged, and the catalog is declustered.  Distinct catalogs are made for the central and eastern U.S. and the western U.S.  This data set is the catalog of natural earthquakes without duplicates for the central and eastern U.S.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/F7P26X4R", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", "title": "Digital Data"}, {"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.5ad771d1e4b0e2c2dd256fd2.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_5ad771d1e4b0e2c2dd256fd2", "keyword": ["Alabama", "Arizona", "Arkansas", "Colorado", "Connecticut", "Delaware", "District of Columbia", "Earthquake", "Florida", "Georgia", "Hazard", "Illinois", "Indiana", "Induced", "Iowa", "Kansas", "Kentucky", "Louisiana", "Maine", "Maryland", "Massachusetts", "Michigan", "Minnesota", "Mississippi", "Missouri", "Montana", "Natural", "Nebraska", "New Hampshire", "New Jersey", "New Mexico", "New York", "North Carolina", "North Dakota", "Ohio", "Oklahoma", "Pennsylvania", "Rhode Island", "Seismic", "South Carolina", "South Dakota", "Tennessee", "Texas", "USA", "USGS:5ad771d1e4b0e2c2dd256fd2", "United States", "Utah", "Vermont", "Virginia", "West Virginia", "Wisconsin", "Wyoming"], "modified": "2026-03-13T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-113.408, 23.078, -60.000, 52.999", "theme": ["geospatial"], "title": "Central and eastern U.S.: Catalog of natural earthquakes without duplicates"}