News

Lower level of Kīlauea's summit lava lake exposes vent wall

As part of Volcano Awareness Month, our January Volcano Watch articles are exploring the U.S. Geological Survey's volcano observatories and their...

November 21 breakout remains active and Kamokuna ocean entry continues

In early September of 2010, a pattern of increased earthquake activity occurred at the Mount Merapi volcano in Indonesia. A few days later, an...

It's January 2017, and, in addition to wishing you Hau‘oli Makahiki Hou (Happy New Year), the USGS Hawaiian Volcano Observatory (HVO) welcomes you to...

How many potentially active volcanoes are there in the United States?

Ongoing activity at Kamokuna ocean entry

When earthquake swarms happen at Yellowstone, we receive a lot of questions about whether the volcano is headed toward eruption. The swarm in June...

Kamokuna lava delta collapse also takes part of old sea cliff

As the East Rift Zone eruption begins its 35th year, let's review what happened over the past 12 months.