Images

With permission from Hawa‘i Volcanoes National Park, Hawaiian Volcano Observatory (HVO) scientists continue to monitor the ongoing eruption within Halema‘uma‘u, at Kīlauea's summit. No significant changes have occurred over the past 24 hours.

Lava continues to erupt from multiple vents on the base and west wall of Halemaʻumaʻu during the evening of October 2, 2021. Kīlauea summit sulfur dioxide (SO2) emission rates remain high and were estimated at around 20,000 tonnes per day the morning of September 30, 2021.

A telephoto image of the west vent in Halema‘uma‘u at the summit of Kīlauea, taken from the south rim of the crater. The west vent continues to be the most vigorous source, with sustained lava fountain heights of 10–15 meters (33–49 ft). Spatter from the lava fountain continues to build a horseshoe-shaped cone around it.

A telephoto image of the west vent in Halema‘uma‘u at the summit of Kīlauea, taken from the western rim of the crater. This fountain continues to produce the largest volcanic gas plume. Hawaiian Volcano Observatory scientists continue to monitor the eruption from an area within Hawai‘i Volcanoes National Park that remains closed to the public due to safety reasons.

A telephoto image of the south-central lava fountain in the Halema‘uma‘u lava lake at the summit of Kīlauea, taken from the south rim of the crater. This fissure continues to produce sustained lava fountain heights of 5–10 meters (16–33 ft), with occasional higher bursts of spatter. UGSG photo taken by L. DeSmither on October 2, 2021.

A telephoto image of the south-central lava fountain in the Halema‘uma‘u lava lake at the summit of Kīlauea, taken from the western rim of the crater. This is the most vigorous fountaining source within the south and central lava lake region and is 35 meters (115 ft) long with sustained fountain heights of 5–10 meters (16–33 ft). UGSG photo taken by L.

A telephoto image looking north at the largest island within the Halema‘uma‘u lava lake at Kīlauea summit. A low fountaining site along the southeast side of the main island (right), has built a small cone approximately 5 meters (16 ft) tall on the edge of the island. Occasional spatter was ejected from the vent at the top of the cone. UGSG photo taken by L.

The eruption in Halema‘uma‘u, at Kīlauea's summit, continues as of the evening of October 2, 2021. From the south rim of Halema‘uma‘u, this image shows at least three fountaining sources in the crater.

View looking down at the September-October 2021 lava lake eruption of Halemaʻumaʻu from the F1 thermal camera located on the western rim of the crater at Kīlauea’s summit. Molten material appears as warmer colors of yellow, orange, and pink, whereas cooler material is represented by dark blue and purple colors.

A view of the new eruption within Halema'uma'u at Kīlauea summit at approximately 9 a.m. HST on the morning of October 1, 2021.

A helicopter overflight the morning of October 1, 2021, provided aerial views of the eruption within Halema‘uma‘u, at Kīlauea's summit. This view, looking to the west, shows an active lava fountain located within the south-central part of the lava lake. This fountain is only a few meters (yards) high. USGS photo by D. Downs.

Aerial image looking to the west of the large island that is floating within the middle of the lava lake in Halema‘uma‘u, at Kīlauea's summit. There are several vents with fountains reaching to just a few meters (yards) high. One of the vents along the eastern margin of the island has started to form spatter ramparts to enclose it. USGS photo by D. Downs.

Aerial view of the active lava lake and vents within Halema‘uma‘u crater, at the summit of Kīlauea. This view is looking to the northwest.

Aerial photo taken during a morning overflight on October 1, 2021, and looking at the west end of the lava lake within Halema‘uma‘u crater, at the summit of Kīlauea. The west vent that is feeding this part of the lava lake is visible; the base of this vent was well above the lava lake when it opened on the afternoon of September 29, 2021.

Aerial image looking to the southwest and showing fissures within Halema‘uma‘u, at Kīlauea's summit, producing lava fountains within the southern and south-central part of the lava lake. These lava fountains are less energetic than when the eruption started on September 29, 2021, but are still spattering to heights of about 5 meters (16 ft) or less.

The Kīlauea summit eruption continues within Halemaʻumaʻu crater, in Hawai‘i Volcanoes National Park. This wide view of the new lava lake was taken this morning, October 1, 2021, during a Hawaiian Volcano Observatory eruption overflight.

The growing lava lake within Halemaʻumaʻu, at the summit of Kīlauea, has risen roughly 27 m (89 ft) since the eruption started on September 29, 2021 at 3:21 p.m. HST. The eruption began with a fissure opening along the floor of Halemaʻumaʻu, through the surface of the solidified 2020–21 lava lake.

In the afternoon of October 1, 2021, Hawaiian Volcano Observatory scientists observed the ongoing eruption within Halemaʻumaʻu from the northwest rim of the crater at Kīlauea's summit.

A telephoto view of the south-central and western fissure fountains that continue to erupt lava into the growing lava lake at Kīlauea summit. The lava lake and eruptive activity are confined within Halemaʻumaʻu crater, in Hawai‘i Volcanoes National Park.

A telephoto view of the western fissure that opened in the wall of Halemaʻumaʻu crater, during the new Kīlauea summit eruption. Spatter from the lava fountains have built a horseshoe-shaped cone (black lava) surrounding the upper part of the fountain, while lava flows into the lava lake at the base of the vent.

This telephoto image of the lava lake margin was taken during a Hawaiian Volcano Observatory Kīlauea summit eruption overflight this morning. The lava lake within Halemaʻumaʻu crater is forming a “perched” levee around parts of the lake perimeter.