Images

A wide view of the active lava lake at Kīlauea summit from the south rim of Halemaʻumaʻu on the morning of October 3, 2021. The west (left) and south (bottom center) vents are visible, with the west vent fountain heights measuring 10–15 meters (33–49 ft) and the south fissure fountains measuring up to 5 meters (16 ft) high. USGS photo by D. Downs.

A telephoto image of the west vent within Halema‘uma‘u crater, at the summit of Kīlauea. The west vent lava fountain remains active with sustained heights of 10–15 meters (33–49 ft). The fountain continues to build a spatter cone around it, but is mostly out of view from this vantage point on the western crater rim. USGS photo taken by D.

A telephoto image of the southern lava fountain from the south rim of Halema‘uma‘u at Kīlauea summit. This view shows most of the fissure vent that is located within the south-central part of the lava lake. The fissure is about 35 m long and has sustained low fountains heights of up to 5 meters (16 ft), with some bursts reaching up to 10 meters (33 ft) high.

There have been no major changes in the ongoing eruption at Kīlauea summit over the past day. All eruptive activity is confined within Halema‘uma‘u crater, in Hawai‘i Volcanoes National Park. The vent on the western wall and the fountain within the south-central portion of the lava lake remain the most vigorous and are producing the largest gas plumes.

A telephoto image of the northwestern margin of the lava lake within Halema‘uma‘u crater, Kīlauea summit. An overflow of lava from the active lava lake (center) is covering a portion of the perched levee that has formed around the margin of the lake. UGSG photo taken by L. DeSmither on October 2, 2021.

A telephoto view of the lava fountain in the western wall of Halema‘uma‘u crater during Kīlauea's ongoing summit eruption. In the late afternoon on Sunday, October 3, the maximum fountain height was measured at approximately 11 meters (36 ft). This photo was taken from the south rim of Halema‘uma‘u looking to the west around 4:00 p.m. HST.

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.

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 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.

KWcam image taken on October 2, 2021, at 6 a.m. HST. This image shows the ongoing eruption within Halemaʻumaʻu crater at the summit of Kīlauea. The eruption began the afternoon of September 29, 2021, as fissures in the floor of the crater; this activity is generating a lava lake that is slowly filling the crater. USGS webcam image. 

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.

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.

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.

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 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.

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 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.

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 helicopter overflight on October 1, 2021, at approximately 10 a.m. HST allowed for aerial visual and thermal imagery to be collected of Halema‘uma‘u crater at the summit of Kīlauea. The scale of the thermal map ranges from blue to red, with blue colors indicative of cooler temperatures and red colors indicative of warmer temperatures.