Overview

• Lava fountains reached about 100 feet on Friday within the summit crater, and officials reported no threat to homes.
• HVO identifies continued use of the same conduit since December, classifying the bursts as part of one ongoing eruption.
• The latest activity focused at the north vent, which spattered in the morning before overflow and afternoon fountaining.
• Scientists say sensors can flag likely eruption windows days to a week in advance, while recent episodes have typically lasted 10 to 12 hours.
• Park visitation has climbed with strong public interest and USGS livestreams, as authorities warn about risks from volcanic gases, ash and windblown glass fibers.