July 17, 2025 — Tephra hill southwest of Halema‘uma‘u eruption, Mauna Loa in background
Detailed Description
The tephra mound on the crater rim southwest of the active vents in Halemaʻumaʻu is nearly 100 feet (30 m) tall after 28 episodes of lava fountaining since December 23, 2024. The profile of the tephra mound nearly mirrors that of Mauna Loa, outlined behind it. USGS photo by K. Mulliken.
Sources/Usage
Public Domain.