{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Annie E. Tucker", "hasEmail": "mailto:aetucker@usgs.gov"}, "description": "This data release documents seismic data collected immediately adjacent to beaver ponds and in their surrounding floodplain environments using active and passive seismic measurements at three sites. These sites are located in the University of Connecticut (UConn) Forest in Storrs, Connecticut; Fenton-Ruby Park in Willington, Connecticut; and in Gunnison County, Colorado. Horizontal-to-vertical spectral ratio (HVSR) measurements were acquired using three-component Tromino seismometers (MoHo, S.R.L.) at non-inundated locations during late summer 2025, with recording intervals of up to 14 minutes and instruments coupled directly to the ground surface (51 total HVSR points). Resonance frequencies were identified from Fourier spectra using GRILLA software (MoHo, S.R.L.) and converted to sediment thickness (depth to bedrock) using a range of plausible sediment shear-wave velocities informed by site geology, literature, or field observations as discussed in the active seismic child item of this data release. The average inferred bedrock depth across all points at the UConn Forest was 10.6 +/- 0.8 m; Fenton-Ruby Park was 5.3 +/- 0.9 m; and Gunnison County was 18 +/- 1.9 m. This work supports investigations of subsurface structure in beaver-influenced valley bottoms.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P1LGT6KX", "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.6966be93d4be02602c2558ce.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_6966be93d4be02602c2558ce", "keyword": ["Colorado", "Connecticut", "Connecticut River Basin", "Fenton River Basin", "Gunnison County", "HVSR", "Rocky Mountains", "UConn Forest", "USGS: 695c132cd4be0212308a7f32", "USGS:6966be93d4be02602c2558ce", "beaver ponds", "environment", "geophysics", "geoscientificInformation", "groundwater and surface-water interaction", "hydrogeology", "hydrology", "inlandWaters", "regolith thickness"], "modified": "2026-03-31T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-106.6203, 38.9077, -72.2245, 41.8997", "theme": ["geospatial"], "title": "Passive Seismic Data Collected Near Beaver Pond Locations in Storrs, CT; Willington, CT; and Gunnison County, CO in Summer/Fall 2025"}