Current Conditions Courtesy of USGS - Hawaiian Volcano Observatory
Monday, April 19, 2021, 7:58 AM HST
Activity Summary: Kīlauea Volcano is erupting. Lava activity is confined to Halemaʻumaʻu with lava erupting from a vent on the northwest side of the crater. This morning, April 19, the lava lake was 226 m (741 ft) deep and remains stagnant over its eastern half. SO2 emission rates remain elevated at 950 t/day, last measured on April 14.
Summit Observations: The most recent sulfur dioxide emission rate, measured on April 14, was 950 t/day. This is elevated compared to rates in the months before the eruption started on December 20 (less than 100 t/day), but lower than emission rates from the pre-2018 lava lake (around 5,000 t/day). Summit tiltmeters recorded minor change over the past 24 hours. Seismicity remains stable, with elevated tremor.
East Rift Zone Observations: No unusual activity noted in the region. Geodetic monitors indicate that the summit and upper East Rift Zone—between the summit and Puʻuʻōʻō—is refilling at rates similar to those measured over the past 2 years and before the December 2020 eruption. SO2 and H2S emissions from Puʻuʻōʻō were below instrumental detection levels when last measured on January 7.
Halemaʻumaʻu lava lake Observations: Lava effusion from the west vent continues to supply the lava lake within Halema‘uma‘u crater. The west vent is consistently effusing lava at a low rate through a crusted-over channel and submerged inlet to the lake. Lava circulation and intermittent foundering of crust continue in the western portion of the lava lake, with lava oozing out sporadically in areas along the perimeter of the lake. The total depth of the lake is 226 m (741 ft) this morning as measured by a continuous laser rangefinder on the active western portion of the lake. Stagnant and solidified lava crust covers the eastern portion of the lava lake and is slowly growing westward.
For more up-to-date monitoring information on Kīlauea: https://volcanoes.usgs.gov/volcanoes/kilauea/status.html
Hazardous volcanic gases are billowing out the crater and present a danger to everyone, especially people with heart or respiratory problems, infants, young children and pregnant women. For more information on air quality, visit: https://www.hawaiiso2network.com/
Get a live look inside the park, courtesy of USGS Hawaiian Volcano Observatory
Ranger Tips For A Successful Visit
A new eruption at the summit of Kīlauea is drawing large numbers of visitors. Plan ahead so you can stay safe and enjoy your visit.
2020-2021 Summit Eruption
Photos and media from the eruption that began on December 20, 2020
From lava to water and back again. Learn about three remarkable changes in the past three years at Halemaʻumaʻu crater on the summit of Kīlauea.
Learn about some of the previous eruptions of Kīlauea and Mauna Loa
Last updated: April 19, 2021