Gift Guide is filled with ideas to help you share love for all the matriarchs and caregivers who make our lives better.

The geology of the Cascadia subduction zone has largely staved off climate-related sea-level rise in the Pacific Northwest, ...

A new study is fueling speculation and fear about the risks of a major earthquake in the Cascadia subduction zone, including ...

A new study traces a 120-million-year-old 'super-eruption' to its source, offering new insights into Earth's complex geological history.