Kīlauea Volcano Activity Notice — status upgrade to RED/WARNING, eruption at the summit
Kīlauea volcano is erupting. At approximately 3:15 p.m. HST on September 10, 2023, the USGS Hawaiian Volcano Observatory observed eruptive activity in Kīlauea summit webcam images and from field reports indicating that an eruption has commenced within Halemaʻumaʻu crater and on the down dropped block to the east in Kīlauea’s summit caldera, within Hawai‘i Volcanoes National Park.
HVO/USGS Volcanic Activity Notice
Volcano: Kilauea (VNUM #332010)
Current Volcano Alert Level: WARNING
Previous Volcano Alert Level: WATCH
Current Aviation Color Code: RED
Previous Aviation Color Code: ORANGE
Issued: Sunday, September 10, 2023, 3:18 PM HST
Source: Hawaiian Volcano Observatory
Notice Number: 2023/H274
Location: N 19 deg 25 min W 155 deg 17 min
Elevation: 4091 ft (1247 m)
Area: Hawaii
Volcanic Activity Summary:
Kīlauea volcano is erupting. At approximately 3:15 p.m. HST on September 10, 2023, the USGS Hawaiian Volcano Observatory observed eruptive activity in Kīlauea summit webcam images and from field reports indicating that an eruption has commenced within Halemaʻumaʻu crater and on the down dropped block to the east in Kīlauea’s summit caldera, within Hawai‘i Volcanoes National Park. The eruption was preceded by a period of strong seismicity and rapid uplift of the summit.
The USGS Hawaiian Volcano Observatory is elevating Kīlauea’s volcano alert level from WATCH to WARNING and its aviation color code from ORANGE to RED as this eruption and associated hazards are evaluated.
The opening phases of eruptions are dynamic. Webcam imagery shows fissures at the base of Halemaʻumaʻu crater generating lava flows on the surface of the crater floor. The activity is confined to Halemaʻumaʻu and the hazards will be reassessed as the eruption progresses.
HVO will continue to monitor this activity closely and report any significant changes in future notices.
HVO is in constant communication with Hawai‘i Volcanoes National Park as this situation evolves. The activity is confined entirely within the park.
For more information about the meaning of volcano alert levels and aviation color codes, see https://www.usgs.gov/programs/VHP/volcanic-alert-levels-characterize-conditions-us-volcanoes
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