USGS Volcano CAP Alerts Current USGS Volcano Hazard Program Common Alerting Protocol Alerts. https://usgs.gov/programs/VHP/volcano-updates public domain Mon, 21 Sep 2026 09:24:15 -0800 avo-sci@usgs.gov AVO Daily Update 20260921_0924 - Great Sitkin Volcano - Alert - Alert level: WATCH, Color Code: ORANGE Slow eruption of lava within the summit crater continues. https://volcanoes.usgs.gov/hans-public/rss/cap/volcano/311120 DOI-USGS-AVO-2026-09-21T17:19:17+00:00 Mon, 21 Sep 2026 09:24:15 -0800