Volcano Hazards Program Office

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Displacement of Kapoho fault scarp, Kīlauea Volcano, Hawai‘i, cause...
January 13, 1960

Displacement of Kapoho fault scarp, Kīlauea, Hawai‘i, caused by mag...

View westward along the Kapoho fault scarp in the village of Kapoho following a swarm of earthquakes in the area. The ground cracking was caused by subsidence of a graben (down-dropped block) that spanned the community. The subsidence accompanied the rise of magma along this part of the East Rift Zone, which erupted a few hours later less than about 600 m (1,970 ft) from

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rockslide
December 31, 1959

Rockslide damage to the Golden Gate area near Mammoth Hot Springs

Rockslide damage to the Golden Gate area near Mammoth Hot Springs, Yellowstone National Park, as a result of the 1959 Hebgen Lake earthquake.

Sapphire Pool erupting
December 31, 1959

Sapphire Pool, in the Upper Geyser Basin, erupting after the 1959 Hebg

Sapphire Pool, in the Upper Geyser Basin, erupting after the 1959 Hebgen Lake earthquake.

Lava fountain in early morning, Kīlauea Iki, Kīlauea Volcano, Hawai...
December 19, 1959

Lava fountain in early morning, Kīlauea Iki, Kīlauea, Hawai‘i

Great quantities of lava pour from the base of a 480-m-tall (1,575 ft) fountain about 65 minutes after the start of episode 16. Lava discharge at this time was about 1.3 million cubic meters per hour (1.7 million cubic yards), which sent lava over the entire lake by 4:05 a.m. The lava fountain illuminates the top of Pu‘u Pua‘i cone, which is about half as high as the

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Image: Panoramic of Glaciers in the Caucasus Moutains
January 1, 1957

Panoramic of Glaciers in the Caucasus Moutains

Panoramic photographic mosaic of several glaciers on the northern slope of Gora Elbrus, a volcanic massif in the Central Caucasus Mountains. The photographic survey was done by N. Nikulin in 1957 during the International Geophysical Year. Photograph courtesy of V.M. Kotlyakov, Russian Academy of Sciences, Moscow.

Ka‘apuna lava flow, Mauna Loa 1950, creates steam plume as it enter...
June 2, 1950

Ka‘apuna lava flow, Mauna Loa 1950, creates steam plume as it enter...

The Ka‘apuna flow traveled from the Southwest Rift Zone vent (7,800 ft elevation) to the coast in just 17 hours.

Fissure of lava fountains erupting from Mauna Loa's upper southwest...
June 2, 1950

Fissure of lava fountains erupting from Mauna Loa's upper SW rift z...

Fissure of lava fountains erupting from Mauna Loa's upper southwest rift zone, June 2, 1950. Plumes of volcanic gas rise high into the air. Aerial photograph taken by the Air National Guard.

A fast-moving ‘s‘ā flow erupted from Mauna Loa in 1950 as it advanc...
June 2, 1950

A fast-moving ‘A‘ā flow erupted from Mauna Loa in 1950 as it advanc...

Aerial photograph shows the Ka‘apuna lava flow erupted from Mauna Loa in 1950 as it advanced through the forest at about 3,000 feet elevation on the morning of June 2. This rapidly moving ‘a‘ā lava flow traveled from the Southwest Rift Zone vent to the ocean in about 17 hours. Earlier flows from this same eruption reached the ocean in as little as three hours.

Road work at Beryl Spring to divert around hydrothermal area 1942
December 31, 1942

Road work at Beryl Spring to divert around hydrothermal area in 1942

Beryl Spring is a hydrothermal area in some restrictive topography! The road from Norris Geyser Basin to Madison Junction follows the Gibbon River through a tight valley. With not much of a choice, the road threads between the river and Beryl Spring over some exceedingly hot ground. It takes a feat of engineering to keep the road drivable through this area, and sometimes

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Aerial photograph of the 1942 Mauna Loa lava flow spreading downslo...
April 28, 1942

Aerial photograph of the 1942 Mauna Loa lava flow spreading downslo...

Aerial photograph of the 1942 Mauna Loa lava flow spreading downslope toward Hilo; smoke from burning trees in center of flow. Scattered cinder cones at the summit of Mauna Kea, top of photograph.