The US Geological Survey (USGS) is seeking information on qualified businesses that can supply a Silicon Audio Low-Noise Optical Seismic Sensor, as part of market research for acquisition planning. This is a sources sought notice, not a request for proposals, and the government will not reimburse any response costs. Responses must be submitted via email to yangzhi_deng@ios.doi.gov by June 16, 2026, at 3:00 PM PST. The applicable NAICS code is 334513, with a size standard of 750 employees. No budget amount or performance location is specified in this notice.