USGS: Magnitude 3.9 'experimental explosion' reported near same site of Navy testing in June

Magnitude 3.9 'experimental explosion' rattles Florida coast

The United States Geological Survey (USGS) reported a magnitude 3.9 "experimental explosion" approximately 187 miles east-northeast of Flagler Beach, Florida. The shock, detected on Friday afternoon, is near a location where the United States Navy conducted tests last month.

LAKE MARY, Fla. - The United States Geological Survey (USGS) reported a magnitude 3.9 "experimental explosion" approximately 187 miles east-northeast of Flagler Beach, Florida.

The shock, detected on Friday afternoon, is near a location where the United States Navy conducted tests last month.

On June 18, the Navy reported that its aircraft, the USS Gerald R. Ford, successfully completed a scheduled explosive event on the U.S. east coast as part of Full Ship Shock Trials. That event also measured a magnitude 3.9 shock.

While the Navy has not released an official statement, Stars and Stripes is reporting that it is the same shock trial testing on Friday.

At the time of the testing in June, the Navy said it would be conducting full ship shock trials through late summer. This is part of validating that the ship can withstand battle conditions, according to the Department of Defense. After that, the ship will undergo six months of modernization, maintenance, and repairs.

The Navy provided the following photos of the shock trial from Friday, June 18, 2021: