Volcanoes are exciting and seeing molten lava is a thrill. To see active volcanoes, head to a U.S. National Park that ...

More than half of the world’s critical mineral resources formed in ancient volcanic systems. When exploring for mineral ...

Hawaiian petroglyphs dating back at least a half-millennium are visible on Oahu for the first time in years, thanks to ...

Fast forward to 2025, and there have been only three eruptions of Mauna Loa in the past 75 years since 1950: 1975, 1984, and ...

Volcanoes are rumbling as scientists monitor earthquakes at Washington's Mount Rainier and Alaska's Iliamna volcano.

If you’ve been following the ongoing eruption of Kilauea, you may have seen the terms “gas piston” or “gas pistoning” show up in some of the USGS Hawaiian Volcano Observatory updates, photo captions, ...

Mauna Loa is not erupting. Its USGS Volcano Alert Level is at NORMAL. No earthquakes were reported felt in the Hawaiian Islands during the past week.