A recent study reveals that slow ocean expansion 15-6 million years ago caused sea levels to change and drop by up to 30 ...

Beneath Alaska’s breathtaking landscapes and pristine wilderness lies one of the most geologically active regions on the ...

Scientists have discovered an unusually thick mantle transition zone beneath the Lesser Antilles. This discovery sheds new light on how oceanic plates sink into the Earth's mantle. Variations ...

Seismic waves from earthquakes have always offered a window into Earth’s hidden interior. For decades, researchers believed ...

Scientists previously assumed the Indian plate slid smoothly beneath Asia. The process was assumed to lift the mountains ...

While some scientists believe lithospheric foundering caused this feature, other scientists think it may be caused by subduction, which is when an oceanic plate sinks beneath a less dense plate, such ...

Tsunamis have hit Washington and the Puget Sound region in the past, and they will happen again in the future.

OKANOGAN, Wash. — A 3.0 magnitude earthquake struck early Wednesday morning near Okanogan.

Did you feel it? The Pacific Northwest Seismic Network (PNSN) says a 3.0 magnitude earthquake hit near Okanogan Wednesday ...

Recent discoveries offer deeper insight into the movement of tectonic plates. New research has found that variations in rock ...