Several vents continued to erupt on the western side of the downdropped block within Kīlauea's summit caldera on September 6, 2023. The roughly east-west trending active vents span approximately 0.5 miles (750 m) and had lava fountain heights of up to about 10 meters (32 feet).
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Several vents continued to erupt on the western side of the downdropped block within Kīlauea's summit caldera on September 6, 2023. The roughly east-west trending active vents span approximately 0.5 miles (750 m) and had lava fountain heights of up to about 10 meters (32 feet).

During an HVO eruption monitoring overflight on September 12, 2023, HVO geologists landed on the downdropped block within Kīlauea's summit caldera and searched for a safe place to collect a lava sample.
During an HVO eruption monitoring overflight on September 12, 2023, HVO geologists landed on the downdropped block within Kīlauea's summit caldera and searched for a safe place to collect a lava sample.

The new eruption at the summit of Kīlauea volcano continues. Numerous fountains remain active on the downdropped block east of Halema‘uma‘u crater, with lava pouring west onto the crater floor.
The new eruption at the summit of Kīlauea volcano continues. Numerous fountains remain active on the downdropped block east of Halema‘uma‘u crater, with lava pouring west onto the crater floor.

During the morning of September 11, Hawaiian Volcano Observatory geologists conducted an overflight of the new eruption within the Kīlauea summit caldera. The eruption is occurring in the east portion of Halemaʻumaʻu crater and on the downdropped block to the east, which formed during the 2018 summit collapse.
During the morning of September 11, Hawaiian Volcano Observatory geologists conducted an overflight of the new eruption within the Kīlauea summit caldera. The eruption is occurring in the east portion of Halemaʻumaʻu crater and on the downdropped block to the east, which formed during the 2018 summit collapse.

During an HVO eruption monitoring overflight on September 11, 2023, HVO geologist were able to land on the downdropped block within Kīlauea's summit caldera. They observed the line of erupting vents, several of which are visible in this video, as they searched for a safe location to collect a lava sample.
During an HVO eruption monitoring overflight on September 11, 2023, HVO geologist were able to land on the downdropped block within Kīlauea's summit caldera. They observed the line of erupting vents, several of which are visible in this video, as they searched for a safe location to collect a lava sample.

Another eruption at the summit of Kīlauea volcano began at 3:13 p.m. on September 10, 2023. This video, captured by the Hawaiian Volcano Observatory's B2cam on the east rim of Halemaʻumaʻu crater, shows the opening phase of the eruption. A lava fountain bursts from a degassing area in the eastern portion of Halemaʻumaʻu crater.
Another eruption at the summit of Kīlauea volcano began at 3:13 p.m. on September 10, 2023. This video, captured by the Hawaiian Volcano Observatory's B2cam on the east rim of Halemaʻumaʻu crater, shows the opening phase of the eruption. A lava fountain bursts from a degassing area in the eastern portion of Halemaʻumaʻu crater.

The B1cam, located on the east margin of the down-dropped block within Kīlauea caldera, captured the start of another eruption at the summit of Kīlauea volcano that began at 3:13 p.m. on September 10, 2023. This video shows a lava fountain bursting from a degassing area in the eastern portion of Halemaʻumaʻu crater, with the downdropped block in the foreground.
The B1cam, located on the east margin of the down-dropped block within Kīlauea caldera, captured the start of another eruption at the summit of Kīlauea volcano that began at 3:13 p.m. on September 10, 2023. This video shows a lava fountain bursting from a degassing area in the eastern portion of Halemaʻumaʻu crater, with the downdropped block in the foreground.

This video, captured the evening of September 10, 2023, from near the Uēkahuna overlook within Hawai'i Volcanoes National Park, shows the new eruption within Kīlauea caldera. After approximately an hour of elevated earthquake and ground deformation, the eruption began at 3:13 p.m. on September 10, 2023.
This video, captured the evening of September 10, 2023, from near the Uēkahuna overlook within Hawai'i Volcanoes National Park, shows the new eruption within Kīlauea caldera. After approximately an hour of elevated earthquake and ground deformation, the eruption began at 3:13 p.m. on September 10, 2023.

What geologic hazard is most likely to occur in the Yellowstone region on human timescales? The answer might not be what you think.
What geologic hazard is most likely to occur in the Yellowstone region on human timescales? The answer might not be what you think.

What geologic hazard is most likely to occur in the Yellowstone region on human timescales?
What geologic hazard is most likely to occur in the Yellowstone region on human timescales?

Geysers and hot springs are some of the most dynamic geologic features on the planet. They are always changing and sometimes that change happens in places where we can see and appreciate it. This has been the case on Geyser Hill, near Old Faithful, in Yellowstone National Park.
Geysers and hot springs are some of the most dynamic geologic features on the planet. They are always changing and sometimes that change happens in places where we can see and appreciate it. This has been the case on Geyser Hill, near Old Faithful, in Yellowstone National Park.

HVO scientists conducted an overflight of the new eruption within Halemaʻumaʻu crater at the summit of Kīlauea volcano, within began the morning of June 7, 2023. This aerial video shows that multiple vent sources are active on the crater floor, much of which has been covered with new lava over the past several hours.
HVO scientists conducted an overflight of the new eruption within Halemaʻumaʻu crater at the summit of Kīlauea volcano, within began the morning of June 7, 2023. This aerial video shows that multiple vent sources are active on the crater floor, much of which has been covered with new lava over the past several hours.
Old Faithful, one of the icons of Yellowstone National Park and probably the most famous geyser in the world. But how faithful is it really? That's the question we're going to tackle in this June 1, 2023 update from the Yellowstone Volcano Observatory.
Old Faithful, one of the icons of Yellowstone National Park and probably the most famous geyser in the world. But how faithful is it really? That's the question we're going to tackle in this June 1, 2023 update from the Yellowstone Volcano Observatory.

USGS scientists conducted a test of the Vibroseis vehicle in Hawai‘i Volcanoes National Park at the summit of Kīlauea on May 8, 2023. Over the next month, the truck will be operating on roads in Kīlauea summit region.
USGS scientists conducted a test of the Vibroseis vehicle in Hawai‘i Volcanoes National Park at the summit of Kīlauea on May 8, 2023. Over the next month, the truck will be operating on roads in Kīlauea summit region.

HVO scientists conducted a routine overflight of Halema‘uma‘u crater at the summit of Kīlauea. No eruptive activity was observed. This video shows a wide view of Halema‘uma‘u crater followed by two closer views of the crater.
HVO scientists conducted a routine overflight of Halema‘uma‘u crater at the summit of Kīlauea. No eruptive activity was observed. This video shows a wide view of Halema‘uma‘u crater followed by two closer views of the crater.

May is traditionally the start of the field season and plans are underway to strengthen monitoring networks, collect data, and conduct research to better understand volcanic activity in the Yellowstone region. Mike Poland, scientist-in-charge of the Yellowstone Volcano Observatory, outlines upcoming projects in this YVO monthly video update for May 1, 2023.
May is traditionally the start of the field season and plans are underway to strengthen monitoring networks, collect data, and conduct research to better understand volcanic activity in the Yellowstone region. Mike Poland, scientist-in-charge of the Yellowstone Volcano Observatory, outlines upcoming projects in this YVO monthly video update for May 1, 2023.

Do animals prank humans? It sometimes feels that way, says Yellowstone Volcano Observatory’s scientist-in-charge Mike Poland. Mike shows some of the ways animals have “interacted” with monitoring equipment in this April 1, 2023 monthly update of activity at Yellowstone Volcano.
Do animals prank humans? It sometimes feels that way, says Yellowstone Volcano Observatory’s scientist-in-charge Mike Poland. Mike shows some of the ways animals have “interacted” with monitoring equipment in this April 1, 2023 monthly update of activity at Yellowstone Volcano.

Could an external event trigger a Yellowstone eruption? No, says Yellowstone Volcano Observatory’s scientist-in-charge Mike Poland, that’s not how volcanoes work. Most of the pressure that drives a volcano toward eruption comes from within, from the exsolution of gases in the magmatic system.
Could an external event trigger a Yellowstone eruption? No, says Yellowstone Volcano Observatory’s scientist-in-charge Mike Poland, that’s not how volcanoes work. Most of the pressure that drives a volcano toward eruption comes from within, from the exsolution of gases in the magmatic system.

Lava lake activity within Halema‘uma‘u crater, at the summit of Kīlauea, continues. On February 14, low fountaining was present at the central vent, which was supplying lava into a channel that flowed towards the large eastern lake.
Lava lake activity within Halema‘uma‘u crater, at the summit of Kīlauea, continues. On February 14, low fountaining was present at the central vent, which was supplying lava into a channel that flowed towards the large eastern lake.

Winter has arrived in the Yellowstone region. The deep snow and cold temperatures are harsh for animals, harsh for humans, and also harsh for volcano monitoring equipment.
Winter has arrived in the Yellowstone region. The deep snow and cold temperatures are harsh for animals, harsh for humans, and also harsh for volcano monitoring equipment.

Lava lake activity continues in Halema‘uma‘u crater, at the summit of Kīlauea, on January 20, 2023. This time-lapse sequence shows an hour and a half of activity in the eastern lake. Lava upwells at the fountain source and spreads out towards the lake margin, where it downwells. Overall, activity in the crater has been steady in recent days.
Lava lake activity continues in Halema‘uma‘u crater, at the summit of Kīlauea, on January 20, 2023. This time-lapse sequence shows an hour and a half of activity in the eastern lake. Lava upwells at the fountain source and spreads out towards the lake margin, where it downwells. Overall, activity in the crater has been steady in recent days.