A 2.9-magnitude earthquake struck off Hawaii’s Kona Coast on Monday, and while few people on land felt the temblor, it spooked hundreds of fish.
The accompanying footage, captured by Betty Safarik and shared with Hawaii News Now, shows the schooling fish reacting to the earthquake.
Safarik and her husband, Dan Gordon, were scuba diving in Keauhou Bay at the time. Safarik said the earthquake, which was centered farther offshore, sounded like a sonic boom.
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Her soundless footage shows what Hawaii News Now described as a “bait ball explosion” the moment the temblor struck.
Bait balls are comprised of fish schooled tightly together in a posture designed to protect against predators.
There were no reports of damage on the Big Island after the earthquake.
This article originally appeared on For The Win: Divers record fish ‘explosion’ as earthquake strikes off Hawaii
Reporting by Pete Thomas, For The Win / For The Win
USA TODAY Network via Reuters Connect