Volcano Watch

We have a number of ways to monitor a volcano, each tuned to different sets of measurements or observations and telling us different things that we...

People sometimes ask if there's any obsidian in Hawaiʻi. The short answer is yes, but if you want to see an obsidian flow, you'll have to go to the...

As we work to increase monitoring capabilities on our restless neighbor Mauna Loa Volcano, our colleagues at the Alaska Volcano Observatory (AVO) are...

As you make the drive from Waimea to Kona, you may notice a peculiar grassy knoll and an associated hummocky ridge on the northern slope of Hualālai...

If you walk along the coast to where the Banana flow has been entering the sea, you will see a steam plume rising from the surface of the water. The...

Pu`u `O`o is a tough place to get to. This is true not only for the general public but also for HVO scientists. Day-long hikes are needed if you don't...

Aircraft and volcanic ash and gases do not mix well.

Jet aircraft are designed to fly through clean air, but volcanic eruptions can dirty clean air...

In 1790, possibly November, explosions from Kīlauea killed between about 80 and about 800 people belonging to Keoua's party traveling to battle...

Visitors and residents of the Big Island's "gold" or Kona coast enjoy beautiful beaches, great snorkeling and lovely sunsets. Early risers may also...

Kīlauea's ongoing east rift zone eruption continues, and lava enthusiasts are being treated with renewed opportunity to view the flows, subject to the...