Buquair III was a planet in or near Federation territory in the mid 23rd century, and the site of the Glassner colony.
In 2263, an undersea earthquake on Buquair III triggered a tsunami which caused significant damage to the colony. During recovery efforts, the Corps of Engineers team aboard the USS Lovell discovered an unidentified alien starship that had crashed and been buried beneath the ocean floor, and recently uncovered by the quake. (SCE eBook: Distant Early Warning)