News

We are used to seeing eruptions from the summit region of Kīlauea contained to the region that is referred to as Halemaʻumaʻu. Halemaʻumaʻu, home of...

Satellite images collected before and during the episodic lava fountaining eruption at the summit of Kīlauea show how the deposits from this eruption...

In a recent study, scientists used several novel methods to measure the volume of water erupted from the iconic Old Faithful Geyser. The average...

Episode 45 of lava fountaining in Halemaʻumaʻu at the summit of Kīlauea began at 1:34 a.m. HST on April 23, after two days of precursory activity, and...

The USGS Hawaiian Volcano Observatory (HVO) detected an increase in shallow seismicity and localized ground deformation beneath the south rim of...

Determining the ages of hydrothermal explosions in Yellowstone is difficult because traditional dating methods often don’t work on those deposits. But...

As Hilo was bustling with activity for the Merrie Monarch Festival, Kīlauea was brewing for episode 44 of lava fountaining, which happened for 8.5...

In 2024, Yellowstone experienced a year of contrasts.  Hydrothermal explosions dominated the headlines, but in terms of seismicity and ground...

Episode 44 of lava fountaining at the summit of Kīlauea took place on April 9, 2026. Southerly/southwesterly winds resulted in the plume being...

Past “Volcano Watch” articles have summarized the episodic lava fountaining eruptions in Kīlauea’s recent history—within the past couple hundred years...