# Volcano Hazards Program Office

## Multimedia

Filter Total Items: 3,294
June 25, 2021

### Kīlauea summit on June 25, 2021

Blue-tinged gases are seen above the lava lake in Halema‘uma‘u crater in this image taken from the southwest rim on June 25, 2021, at 12:37 p.m. HST. Although eruptive activity has paused at the summit of Kīlauea, sulfur dioxide-rich gases can still be seen emanating from the lava lake, primarily along the northern margin but also at the west vent and along the southern

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June 17, 2021

### [MKcam] - Mauna Loa's Summit and Northeast Rift Zone

This image is from a research camera positioned on Mauna Kea. The camera looks south toward the summit and Northeast Rift Zone of Mauna Loa.

June 16, 2021

### [MKcam] - Mauna Loa's Summit and Northeast Rift Zone from Mauna Kea

Last 24 Hours - Live Image of Mauna Loa's Summit and Northeast Rift Zone from Mauna Kea [MKcam].

Disclaimer: The webcams are operational 24/7 and faithfully record the dark of night if there are no sources of incandescence or other lights. Thermal webcams record heat rather than light and get better views through volcanic gas. At times, clouds and rain obscure

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June 11, 2021

### Kīlauea summit on June 11, 2021

A view of Halema‘uma‘u on June 11, 2021, at 12:20 p.m. HST. Although eruptive activity has paused at the Kīlauea summit, HVO geologists still monitor the lava lake and summit area regularly. They make observations to note any physical changes in the landscape or visual changes in gas emissions. Field crews also look and listen for rockfalls and measure the depth of the

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June 10, 2021

### Comparison of Porkchop Geyser in Sep 1984 (left) and Aug 1986 (right)

Comparison of Porkchop Geyser in September 1984 (left) and August 1986 (right).  The Geyser entered a period of near-constant eruption in 1985, and the pool disappeared; it exploded on September 5, 1989.

June 10, 2021

### Map of Yellowstone showing major rivers and continental divide

Map of Yellowstone National Park showing the major rivers and the continental divide (red dashed). Yellowstone Caldera is oulined by purple dashed line. Water flowing south and west of the divide ends up in the Pacific Ocean, whereas water north and east of the divide ends up in the Gulf of Mexico. Isa Lake is located on the continental divide, and water from the lake

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June 10, 2021

### Various paths of taken by water originating in Yellowstone

Upper map shows the flow path of hot spring water from the Old Faithful area through the Firehole, Madison, Missouri and Mississippi Rivers to the Gulf of Mexico. Lower map shows the flow path of hot spring water from south of the continental divide through the Lewis, Snake and Columbia Rivers to the Pacific Ocean. Maps were generated with the

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June 8, 2021

### Routine overflight of Halemaumau crater

The eruption in Halemaumau crater, at the summit of Kilauea, is no longer active. The lava lake that was active between December 2020 and May 2021 remains solidified at the surface. A routine summit overflight observed no signs of residual incandescence in cracks, and only a diffuse gas plume rising from the northern portion of the lake.

June 8, 2021

### Kīlauea summit on June 8, 2021

No eruptive activity or major changes were observed during a USGS Hawaiian Volcano Observatory Kīlauea summit monitoring shift on June 8, 2021. An area near the north wall of Halema‘uma‘u continues to visibly emit gases, though the eruption has paused. The most recent sulfur dioxide emission rate, measured on June 4, remains slightly elevated at 54 tonnes per day. USGS

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June 8, 2021

### Kīlauea summit on June 8, 2021

Portions of Crater Rim Drive, which was damaged during the 2018 Kīlauea summit collapse, are visible from the south rim of Halema‘uma‘u. The lava lake within Halema‘uma‘u and the east wall of Halema‘uma‘u crater are visible in the background. This area of Hawai‘i Volcanoes National Park remains closed to the public due to hazardous conditions. With permission from the

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June 8, 2021

### Kīlauea summit on June 8, 2021

On June 8, 2021, the USGS Hawaiian Volcano Observatory conducted a routine helicopter overflight and fieldwork at the summit of Kīlauea. Here, a geophysicist returns to the helicopter after making Global Positioning Systems (GPS) measurements. These surveys measure small changes in the ground surface caused by subsurface magma movement. This scientist carries a GPS antenna

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June 8, 2021

### Kīlauea summit on June 8, 2021

A view of the crusted over lava lake within Halema‘uma‘u at Kīlauea summit, taken during a helicopter overflight on June 8, 2021. No incandescence (red lava) has been visible on the solidified lava lake surface for over two weeks. Light degassing continues in a few areas around the margin of the lava lake, mainly along the north crater wall (bottom left). USGS photo taken

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