The Chesapeake Bay impact crater formed about 35 million years ago during the late Eocene when a comet fragment or asteroid struck the U.S. Atlantic continental shelf in the area now occupied by the southern part of Chesapeake Bay and adjacent landmasses in the Virginia Coastal Plain. The resulting structure is an approximately circular, 53-mile-diameter crater centered near the town of Cape Charles.
The Chesapeake Bay impact crater formed about 35 million years ago during the late Eocene when a comet fragment or asteroid struck the US Atlantic continental shelf in the area now occupied by the southern part of Chesapeake Bay and adjacent landmasses in the Virginia Coastal Plain. The resulting structure is an approximately circular, 53-mile-diameter crater centered near the town of Cape Charles.