Volcano Watch: The refilling of Halema‘uma‘u crater

Halema‘uma‘u crater has undergone repeated changes during the past two centuries. Prior to 1924, the size and shape of the Halema‘uma‘u lava lake changed frequently and lava commonly spilled out across the floor of Kilauea caldera.

Three decades of Volcano Watch

David Clague, former Hawaiian Volcano Observatory Scientist-In-Charge, initiated this series of weekly articles in late-1991. He was the primary author until March 1995, when the HVO staff — and eventually other partners — began contributing.

Volcano Watch: Tracking magma movement using olivine crystal ‘clocks’

Lavas and their minerals erupted from Hawaiian volcanoes provide clues to the history of the magmas that are eventually erupted. Kilauea’s recent summit eruptions allow us “a glimpse inside” the volcano and the chance to learn more about where the magma erupted in Halema‘uma‘u crater came from and how quickly it moved to the surface.

Volcano Watch: How high is that lava fountain?

The rapid onset of the current summit eruption sent USGS Hawaiian Volcano Observatory field crews running to grab their gear and head for the rim of Halemaʻumaʻu on the afternoon of Sept. 29. The onset of an eruption is frequently the most dynamic and vigorous period, requiring a quick evaluation of potential hazards.

Pele’s show continues

Kilauea volcano has erupted more than 4.2 billion gallons of lava since its current summit eruption began Sept. 29.

Volcano Watch: What’s that rising from the lava lake?

The past year has seen fluctuating lava lakes, ephemeral lava fountains, craggy spires, and drifting “islands” reminiscent of pre-1924 Halemaʻumaʻu activity at the summit of Kilauea. The recent activity has USGS Hawaiian Volcano Observatory (HVO) scientists reflecting on prior observations and how they compare to recent activity.

Kilauea volcano eruption continues

Kilauea volcano’s summit lava lake continued to rise Wednesday, one week after the start of the most recent eruption within Halema‘uma‘u crater.

Kilauea alert level lowered

The Hawaiian Volcano Observatory Monday lowered Kilauea volcano’s alert level, noting less vigorous lava fountaining, reduced emissions and no indication of activity migrating outside the summit caldera.

Volcano Watch: A new eruption in Halema‘uma‘u

Kilauea volcano is erupting again. Wednesday afternoon, lava returned to Kilauea’s summit within Hawaii Volcanoes National Park after a 4-month hiatus. A new line of fissures sliced through the solidified crust of the 2020–21 lava lake in Halema‘uma‘u at 3:21 p.m. HST.