Facundo Riedel

Volcano Vigil is an agent that watches the public USGS webcams of Kīlauea (Hawaiʻi) around the clock and turns their frames into measurements, alerts and plain-English bulletins. It was built from scratch during the hackathon. Volcano observatories publish a new webcam frame every few minutes, but nobody can watch them all day. Every two minutes, Volcano Vigil pulls frames from four USGS cameras (three visible, one thermal). Free local checks drop fog and dark frames, and Muse Spark judges the frames those checks cannot decide. Every hour, SAM 3.1 tracks the plume and the lava. On calibrated cameras, the masks become heights in metres with an uncertainty, plus the side the plume drifts to, which is checked against the forecast wind. A Muse Spark agent with nine tools then decides what to inspect and writes a bulletin. Before it is published, the code checks every height and area in it against the stored measurements. An alert watcher posts to a public Telegram channel within minutes when lava fountaining starts or stops. To show it works, episode 55 (Oct 17, 2026) is replayed on real USGS frames, through the same pipeline, on a simulated clock, and scored against the USGS Hawaiian Volcano Observatory's reports: - the plume top at the peak is within 9%; - three of four fountain heights are within 10%; - the end of fountaining is within a minute; - the onset alert came 33 minutes before HVO's notice; - there were zero false alarms over the 29 hours of overflows before the episode. It has been live on Hugging Face Spaces since Nov 1: https://facurie-volcano-vigil.hf.space. It is not an official alert: every page and bulletin links to USGS HVO.