Earthquakes Attributed to Navy’s 10,000-Pound Bomb Tests Off Florida Coast

10,000lb Explosion during the test.
10,000lb Explosion during the test.

What appears to be another earthquake off Florida’s Atlantic coast near Daytona Beach has been caused by the U.S. Navy determining the seaworthiness of a new vessel.

The Daytona Beach News-Journal reported the Navy conducted a shock test on September 4, on the USS Milwaukee off the Volusia and Flagler county coastlines.

“Sound waves from an explosion as part of the test, are registered as a 3.8 magnitude earthquake on U.S. Geological Survey seismographs, as far north as Kansas,” explained Paul Caruso of the National Earthquake Information Center.

A Navy spokeswoman said a series of three tests are planned for the USS Milwaukee, each using a 10,000-pound explosive charge.

Shock trials on another Navy vessel this summer were also recorded as earthquakes.

CBS affiliate WKMG of Orlando reported that in April an earthquake of a 3.7 magnitude was detected off Daytona Beach. It’s not clear if that was also related to Navy tests.

Some small whales and dolphins were stranded along Florida beaches in 2008 after similar tests, but officials couldn’t ascertain what killed the animals.

Ian Harvey

Ian Harvey is one of the authors writing for WAR HISTORY ONLINE