A powerful underwater volcano known as Axial Seamount off the Oregon coast may erupt. Though scientists say it poses no ...

A mysterious and highly active undersea volcano off the Pacific Coast could erupt by the end of this year, scientists say.

Pacific hurricane season begins in Mexico, authorities urge coastal residents to stay informed and prepare for storms.

After they return to molt, they depart again for a 7-month migration into the Northeast Pacific Ocean. "They make it halfway to Japan and back, which is a pretty extraordinary feat for for a ...

when the Blob took hold in the northeast Pacific. Ocean temperatures soared by 7 degrees Fahrenheit (around 4 degrees Celsius), disrupting the entire ecosystem. Phytoplankton, the foundation of ...

An ocean heat wave in the northeast Pacific killed 4 million common murre birds, making it the largest documented single-species die-off in the modern era, new research has found. A study ...

No injuries were reported. The earthquake was centered in the Pacific Ocean 13 miles northeast of the city of Esmeraldas, and it had a depth of 21.7 miles, according to the United States ...