Skip to main content
U.S. flag

An official website of the United States government

Analyzing samples from Kīlauea summit eruption — September 11, 2023

Detailed Description

A photo showing what completed pellet look like, with a sharpie pen for scale. The rough and uneven lava sample has been transformed into a pellet that is dense, fine-grained, and has a flat surface that can be analyzed. USGS photo by S. Lundblad. 


Public Domain.