As of February 2026, the Big Island (Hawaiʻi Island) is the only Hawaiian island with active lava flow, specifically at Kīlauea. On February 15, 2026, Kīlauea resumed its summit eruption with high lava fountains reaching up to 1,300 feet within the Halemaʻumaʻu crater. This recent activity, designated as "episode 42," has covered over 70% of the crater floor with fresh molten rock. While the lava is currently contained within the summit caldera of Hawaiʻi Volcanoes National Park, it produces significant volcanic smog (vog) that can affect air quality in downwind communities like Pahala and Nāʻālehu. Maunaloa, the world's largest active volcano, is also on the Big Island but is currently in a "post-eruption filling" phase without active flows. For 2026 visitors, the park remains open for viewing, but it is essential to check the USGS Hawaiian Volcano Observatory for the latest daily safety updates.