Strong earthquake hits off Antarctica's coast

Story highlights

  • The quake struck Sunday morning near Antarctica's Shetland Islands
  • The USGS reports it struck at a depth of 6.2 miles
  • A U.S. agency warns there's a "small possibility of a ... regional tsunami"

A strong 6.6-magnitude earthquake struck Sunday off the coast of Antarctica, prompting a warning that there was a "small possibility" it could trigger a tsunami.

The tremor was centered in waters south of South America's southern tip, about 334 miles (539 kilometers) west of Coronation Island and 388 miles northeast of Palmer Station in Antarctica, the U.S. Geological Survey reported.

It hit at 9:40 a.m. local time (8:40 a.m. ET) on Sunday, according to the federal agency, and had an estimated depth of 6.2 miles.

Afterward, the Pacific Tsunami Warning Center released a statement saying that there appears to be no threat of "destructive widespread tsunami" because of the quake.

But the agency did state "there is a small possibility of a local or regional tsunami that could affect coasts located usually no more than a few hundred kilometers from the earthquake epicenter.

"Authorities in the region near the epicenter should be made aware of this possibility," the warning center added.

      CNN recommends

    • pkg clancy north korea nuclear dreams_00002004.jpg

      North Korea nuclear dream video

      As "We are the World" plays, a video shows what looks like a nuclear attack on the U.S. Jim Clancy reports on a bizarre video from North Korea.
    • Photos: Faces of the world

      Photojournalist Alison Wright travelled the world to capture its many faces in her latest book, "Face to Face: Portraits of the Human Spirit."
    • pkg rivers uk football match fixing_00005026.jpg

      How to fix a soccer match

      Europol claims 380 soccer matches, including top level ones, were fixed - as the scandal widens, CNN's Dan Rivers looks at how it's done.
    • No Eiffel Towers, Statues of Liberties, Mt. Rushmores, Taj Mahals, Aussie koalas or Chairman Maos.

      15 biggest souvenir-buying no-no's

      It's an essential part of any trip, an activity we all take part in. Yet almost none of us are any good at it. Souvenir buying is too often an obligatory slog.