Skip to main content
U.S. flag

An official website of the United States government

Tephra from the September 10, 2023, Kīlauea eruption — September 13, 2023

Detailed Description

These tephra and spatter clasts were eruption recently at the summit of Kīlauea. They were collected from an inactive fissure on September 12, 2023, and brought back to the lab where they will be analyzed in several ways, including their density, shape, size, and chemistry. The larger clast on the bottom is about 8 inches (20 cm) long. USGS photo by K. Lynn.


Public Domain.