A mysterious and highly active undersea volcano off the Pacific Coast could erupt by the end of this year, scientists say. Nearly a mile deep and about 700 miles northwest of San Francisco, the ...

A mysterious and highly active undersea volcano off the Pacific Coast could erupt by the end of this year, scientists say. Nearly a mile deep and about 700 miles northwest of San Francisco, the ...

LOS ANGELES — A mysterious and highly active undersea volcano off the Pacific Coast could erupt by the end of this year, scientists say. Nearly a mile deep and about 700 miles northwest of San ...

USGS researcher says there are about 60 or so underwater submarine volcanoes within a hundred miles off the California coast that could send out big pressure waves and stratospheric type of eruptions.

LOS ANGELES -- Scientists have discovered a cluster of underwater asphalt volcanoes rising from the sea floor just off the coast of Santa Barbara, Calif. The seven volcanoes, about 65 feet tall ...

A tsunami advisory for parts of Alaska, California, Hawaii, Oregon and Washington after an undersea volcano erupted in the Tonga Islands.

(KTXL) — California is known for its beaches, vast forests, stunning deserts and towering mountains but it is also one of the top five states with the most volcanoes. California’s 29 volcanoes ...

An undersea volcano has erupted in spectacular fashion near the Pacific nation of Tonga, sending large tsunami waves crashing across the shore and people rushing to higher ground.

A mysterious and highly active undersea volcano off the Pacific Coast could erupt by the end of this year, scientists say. Nearly a mile deep and about 700 miles northwest of San Francisco, the ...