USGS Confirms M 3.9 Experimental Explosion Near Ponce Inlet, Florida

M 3.9 Experimental Explosion – 147 Km ENE of Ponce Inlet, Florida

USGS Confirms M 3.9 Experimental Explosion Near Ponce Inlet, Florida

The USGS National Earthquake Information Center has identified a magnitude 3.9 event as an experimental explosion rather than a natural earthquake. Occurring 147 kilometers east-northeast of Ponce Inlet, Florida, this event matches the ground motion patterns typical of Navy Full Ship Shock Trials conducted in the region. With a depth of zero kilometers, the data confirms the artificial nature of the seismic activity.

The recorded ground motions from this event are more typical of an explosion than a naturally occurring earthquake.
  1. Rebelgecko

    Apparently the US Navy does these semi-regularly to test the durability of warships

  2. genxy

    This must have maimed thousands of marine mammals.

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2026-07-17