Related Experiment Video
Updated: Sep 16, 2025

Soil Lysimeter Excavation for Coupled Hydrological, Geochemical, and Microbiological Investigations
Published on: September 11, 2016
Small intrusions may help maintain Kīlauea's lava lake
Taha Sadeghi Chorsi1, Elisabeth Gallant2, Lichen Forster2
1School of Geosciences, University of South Florida, 4202 E. Fowler Avenue NES 107, Tampa, 33620-5250 FL USA.
None:
We collected rapid-repeat radar data capturing the deformation of the active Halema'uma'u summit lava lake surface on January 19, 2023, an otherwise quiescent period during the January-March 2023 eruption. Radar interferograms were generated every 90 s over a 90-min period of intermittent inflation using a scanning real aperture radar operating at Ku-band (17.4 mm wavelength). This technique allows observation of phenomena at a temporal scale and spatial resolution not previously possible. We model the intrusion as a shallow sill, 10 to 100 m below the lava lake surface. We suggest that frequent intrusions of such small volume pulses of gas-rich magma help to provide the flux of heat and mass necessary to compensate for cooling, outgassing, and recycling of dense degassed magma to deeper levels, sustaining the lava lake during periods of near-steady-state.
Supplementary Information:
The online version contains supplementary material available at 10.1007/s00445-025-01847-8.
More Related Videos
13:38Laser-Induced Fluorescence Emission L.I.F.E. as Novel Non-Invasive Tool for In-Situ Measurements of Biomarkers in Cryospheric Habitats
Published on: October 26, 2019
09:19Measuring the Structure, Composition, and Change of Underwater Environments with Large-area Imaging
Published on: April 18, 2025
Related Concept Videos
Mechanism of Lamellipodia Formation
Keystone Species
Feedback Regulation of Calcium Concentration
Various transmembrane receptors, such as G protein-coupled receptors (GPCRs), elicit a response to extracellular signals by increasing cytosolic calcium. Activated GPCRs...
Design Example: Forces in Sluice Gate
Key variables in...
Design Example: Creating a Hydraulic Model of a Dam Spillway
Minor Losses in Pipes
Valves play a significant role in generating minor losses by obstructing or redirecting the fluid flow. When a valve is closed or partially closed, it restricts the flow...