The U.S. Geological Survey (USGS) is conducting market research to identify qualified businesses capable of providing infrasound acoustic monitors. This is a sources sought notice for planning purposes only, not a solicitation for bids or proposals. Responses must be submitted via email to tracy_huot@ios.doi.gov by 06/29/2026 at 1700 Pacific Time. The applicable NAICS code is 334515, with a size standard of 750 employees. No budget amount or performance location is specified in the description.