An official website of the United States government
Here's how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
HVO's "Volcano Watch" article today addresses two frequently asked questions about the water pond at the bottom of Halema‘uma‘u: where is the water coming from, and what is its importance? The article is posted on HVO's website at https://volcanoes.usgs.gov/observatories/hvo/hvo_volcano_watch.html?vwid.... USGS photo by M. Patrick, 08-15-2019.
Comparing photos from yesterday and today shows a slight rise in the water level. Unlike yesterday's observations, HVO geologists noted shimmer on the pond today, indicating agitation of the water surface. Steam rising from the pond shifted in the breeze. USGS photo by M. Patrick, 08-15-2019.