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Images related to natural hazards.
This morning, the line of fountains on fissure 17 coalesced into a large fountain that was sending lava 50 meters (164 feet) into the air, with small bits of spatter thrown up to 100 meters (328 feet) high. At about 12:00 p.m. HST, HVO geologists flying over the area reported that fissure 17 was going strong
This morning, the line of fountains on fissure 17 coalesced into a large fountain that was sending lava 50 meters (164 feet) into the air, with small bits of spatter thrown up to 100 meters (328 feet) high. At about 12:00 p.m. HST, HVO geologists flying over the area reported that fissure 17 was going strong
These radar amplitude images were acquired by the Italian Space Agency's Cosmo-SkyMed satellite system and show changes to the caldera area of Kīlauea Volcano that occurred between May 5 at 6:12 a.m. HST (left) and May 17 at 6:12 a.m. HST (right).
These radar amplitude images were acquired by the Italian Space Agency's Cosmo-SkyMed satellite system and show changes to the caldera area of Kīlauea Volcano that occurred between May 5 at 6:12 a.m. HST (left) and May 17 at 6:12 a.m. HST (right).
Closer view of fissure 17 (middle photo) and fissure 18 (left side photo) during this morning's overflight of the area. View is toward the south.
Closer view of fissure 17 (middle photo) and fissure 18 (left side photo) during this morning's overflight of the area. View is toward the south.
Spattering at Fissure 17 around 12:30 AM HST, on May 18, 2018. The audio is the sound generated by the jetting of magma and gases from the fissure.
Spattering at Fissure 17 around 12:30 AM HST, on May 18, 2018. The audio is the sound generated by the jetting of magma and gases from the fissure.
Mount St. Helens erupted 38 years ago, May 18, 1980
Mount St. Helens erupted 38 years ago, May 18, 1980
Fissure 18 generated a channelized lava flow that had advanced about 1 km (0.6 mi) along the west side of fissure 17 as of about noon today.
Fissure 18 generated a channelized lava flow that had advanced about 1 km (0.6 mi) along the west side of fissure 17 as of about noon today.
This image, captured during an HVO overflight around noon today, shows a lava flowthat crossed Pohoiki Road earlier.
This image, captured during an HVO overflight around noon today, shows a lava flowthat crossed Pohoiki Road earlier.
At 7:45 a.m. HST, only traces of ash (dark areas on white rail) remain on this fence in the Volcano Golf and Country Club Subdivsion, located 4 km (2.5 mi) from the Overlook crater in Hawai‘i Volcanoes National Park.
At 7:45 a.m. HST, only traces of ash (dark areas on white rail) remain on this fence in the Volcano Golf and Country Club Subdivsion, located 4 km (2.5 mi) from the Overlook crater in Hawai‘i Volcanoes National Park.
The Fissure 17 flow front has slowed substantially with only small amounts of pasty "toothpaste" lava oozing out from the flow front. However lava continues to be erupted from the active fissure.
The Fissure 17 flow front has slowed substantially with only small amounts of pasty "toothpaste" lava oozing out from the flow front. However lava continues to be erupted from the active fissure.
At 7:45 a.m. HST, view of Halema‘uma‘u crater from the visitor viewing area in front of the Jaggar Muesum, Hawai‘i Volcanoes National Park. A light coating of ash on the Park's interpretative sign resulted from ash falling to the ground from explosive events of the past day.
At 7:45 a.m. HST, view of Halema‘uma‘u crater from the visitor viewing area in front of the Jaggar Muesum, Hawai‘i Volcanoes National Park. A light coating of ash on the Park's interpretative sign resulted from ash falling to the ground from explosive events of the past day.
HVO geologist next to cracks on Nohea Street in Leilani Estates this morning. These cracks expanded significantly in the past day. Note the vertical offset across the cracks.
HVO geologist next to cracks on Nohea Street in Leilani Estates this morning. These cracks expanded significantly in the past day. Note the vertical offset across the cracks.
Aerial view of ground cracks on Pohoiki Road during an overflight of the eruptive fissurearea at about 7 a.m. HST. Cracks continued to open and widen, some with horizontal and vertical offsets, in the area during the past 24 hours.
Aerial view of ground cracks on Pohoiki Road during an overflight of the eruptive fissurearea at about 7 a.m. HST. Cracks continued to open and widen, some with horizontal and vertical offsets, in the area during the past 24 hours.
At about 07:00 a.m. HST, Fissure 17 as shown from the air. The HVO field crew reported that the spattering height and intensity at Fissure 17 seemed to have intensified slightly from yesterday, but the length of active spattering in the fissure is shorter.
At about 07:00 a.m. HST, Fissure 17 as shown from the air. The HVO field crew reported that the spattering height and intensity at Fissure 17 seemed to have intensified slightly from yesterday, but the length of active spattering in the fissure is shorter.
The Fissure 17 flow front has slowed substantially with only small amounts of pasty "toothpaste" lava oozing out from the flow front. However lava continues to be erupted from the active fissure. This lava appears to be accumulating within the flow and has widened the flow margins slightly.
The Fissure 17 flow front has slowed substantially with only small amounts of pasty "toothpaste" lava oozing out from the flow front. However lava continues to be erupted from the active fissure. This lava appears to be accumulating within the flow and has widened the flow margins slightly.
Video: For the past several days, intermittent small explosions have occurred at the west end of Fissure 17. These explosions throw large pieces of spatter to a height of about 150 m (500 ft).
Video: For the past several days, intermittent small explosions have occurred at the west end of Fissure 17. These explosions throw large pieces of spatter to a height of about 150 m (500 ft).
At about 07:00 a.m. HST, Fissure 17 as shown from the air. The HVO field crew reported that the spattering height and intensity at Fissure 17 seemed to have intensified slightly from yesterday, but the length of active spattering in the fissure is shorter.
At about 07:00 a.m. HST, Fissure 17 as shown from the air. The HVO field crew reported that the spattering height and intensity at Fissure 17 seemed to have intensified slightly from yesterday, but the length of active spattering in the fissure is shorter.
Same area between fissures 16 and 20 at 8:33 a.m. By the time geologists reached the site on foot, the spattering had died down and they were only hearing gas rushing sounds.
Same area between fissures 16 and 20 at 8:33 a.m. By the time geologists reached the site on foot, the spattering had died down and they were only hearing gas rushing sounds.
View uprift from the Hawaiian Volcano Observatory overflight this morning at 8:25 a.m. Note sulfur dioxide plumes rising from the fissures along the rift and accumulating in the cloud deck. Winds are calm today.
View uprift from the Hawaiian Volcano Observatory overflight this morning at 8:25 a.m. Note sulfur dioxide plumes rising from the fissures along the rift and accumulating in the cloud deck. Winds are calm today.
Close view of rock hurled from the Overlook crater during an explosive event last evening. The rock broke apart on impact, and was about 60 cm (24 in) before it hit the ground. The location is a few hundred meters (yards) south of the Overlook crater at the Halema‘uma‘u parking lot.
Close view of rock hurled from the Overlook crater during an explosive event last evening. The rock broke apart on impact, and was about 60 cm (24 in) before it hit the ground. The location is a few hundred meters (yards) south of the Overlook crater at the Halema‘uma‘u parking lot.
