The Enigma tracking app has logged over 9,000 sightings of Unidentified Submersible Objects (USOs) within 10 miles of U.S. coastlines as of August 2025. More than 150 describe objects hovering above or plunging into water without leaving a ripple.

The Enigma tracking app has logged over 9,000 sightings of Unidentified Submersible Objects (USOs) within 10 miles of U.S. coastlines as of August 2025. California has the most reports, followed by Florida.