The next great earthquake isn't the only threat to the Pacific Northwest. A powerful earthquake, combined with rising sea ...

Volcanoes have stirred human awe for thousands of years, with their bursts of fire and rivers of molten rock. Yet, beyond the ...

Research assistant professor Társilo Girona of the University of Alaska Fairbanks Geophysical Institute views the Alta X drone at the Poás volcano overlook. The four-propeller drone sitting ...

But how do they form and why are they concentrated there? (A) Diagram of a subduction zone illustrating the transfer of gold and sulfur from the subducting slab through the mantle to the upper crust ...

The Hikurangi Subduction Zone is where the Pacific plate drops westward under the Australian plate. It sits just off the east coast of the North Island. Subduction zones generate the largest ...

When magma moves into the rift zone of a Hawaiian volcano, there is understandably a lot of excitement and apprehension. How far will the magma go, and will it erupt? But even long after the activity ...

“Volcano Watch” is a weekly article and activity update written by US Geological Survey Hawaiian Volcano Observatory scientists and affiliates. When magma moves into the rift zone of a ...

While this causes “strike slip” quakes that are normally less powerful than those seen in “subduction zones” like Indonesia’s Sumatra, where one plate slides under another, they can ...

While this causes “strike slip” quakes that are normally less powerful than those seen in “subduction zones” like Sumatra, where one plate slides under another, they can still reach ...