Local Voices
Bubbling Along LA County Coast Baffles Hermosa Beach Residents
The process includes blowing air through the line to ensure the ducts and other things are working correctly.
November 19, 2025
A near-constant stream of bubbles off the coast of Hermosa Beach has caught the eyes of residents, with some venturing into the ocean to find answers.
Find out what's happening in Hermosa Beachfor free with the latest updates from Patch.
The mystery prompted some theories from residents, including aliens, submarines or a whale farting, but the real reason for the bubbling is much less exciting.
Crews are cleaning underwater fiber-optic lines that run across the Pacific Ocean from California to Asia, according to Rick Devinney, the contractor overseeing the work. He added that the tech giant Meta plans to add a line in the upcoming months, which will require the company to clean out its existing infrastructure to prepare.
Find out what's happening in Hermosa Beachfor free with the latest updates from Patch.
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