Undersea volcano threatens southern Italy: report

Europe's largest undersea volcano could disintegrate and unleash a tsunami that would engulf southern Italy "at any time", a prominent vulcanologist warned in an interview published Monday.

Bent tectonics: How Hawaii was bumped off

More than 80 undersea volcanoes and a multitude of islands are dotted along the Hawaii-Emperor seamount chain like pearls on a necklace. A sharp bend in the middle is the only blemish. The long-standing explanation for this ...

Major Pacific earthquake prompts tsunami warning

A major 7.9-magnitude earthquake has shaken the South Pacific nation of Tonga and sending people in low lying areas of Fiji fleeing for higher ground after a tsunami warning, according to officials.

Tongan inspection team heads to undersea volcano

(AP) -- Scientists sailed Thursday to inspect an undersea volcano that has been erupting for days near Tonga - shooting smoke, steam and ash thousands of feet (meters) into the sky above the South Pacific ocean.

Volcano erupts in Pacific, West Coast under tsunami advisory

An undersea volcano erupted in spectacular fashion Saturday near the Pacific nation of Tonga, sending tsunami waves crashing across the shore and people rushing to higher ground. Tsunami advisories were issued for Hawaii, ...

New Japan volcanic islet here to stay, for now: official

A new island created by a volcanic eruption off Japan's coast is here to stay—for now at least, scientists said Tuesday, adding the new landmass could withstand erosion for several years.

Expedition heads for world's deepest undersea volcanoes

A British scientific expedition is heading into the world's deepest volcanic rift, more than three miles beneath the waves in the Caribbean, to hunt for the deepest "black smoker" vents detected so far on the ocean floor. ...

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