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Hawaiian Volcano Observatory images of eruptive activity, field work, and more.
Map as of 12:00 p.m. HST, May 23. On the main map, light purple areas indicate lava flows erupted in 1840, 1955, 1960, and 2014-2015. On the inset map (lower right), the dark purple area indicates locations of Kīlauea Volcano's East Rift Zone, Southwest Rift Zone, and summit, and the light purple area indicates the extent of Kīlauea.
Map as of 12:00 p.m. HST, May 23. On the main map, light purple areas indicate lava flows erupted in 1840, 1955, 1960, and 2014-2015. On the inset map (lower right), the dark purple area indicates locations of Kīlauea Volcano's East Rift Zone, Southwest Rift Zone, and summit, and the light purple area indicates the extent of Kīlauea.
This close-up image (5000x magnification) of a Kīlauea volcanic ash sample collected on May 23, 2018, was captured by a scanning electron microscope. Visible on the ash surface are tiny salt crystals that can be leached from the ash. Most of the salts in this image are aluminum sodium sulfate and calcium sulfate.
This close-up image (5000x magnification) of a Kīlauea volcanic ash sample collected on May 23, 2018, was captured by a scanning electron microscope. Visible on the ash surface are tiny salt crystals that can be leached from the ash. Most of the salts in this image are aluminum sodium sulfate and calcium sulfate.
Multiple explosions at Kīlauea's summit occurred throughout today, with some of the ash plumes rising 6,000 to 7,000 feet above sea level. HVO scientists keeping tabs on the explosions from a safe distance captured these images. This photo was taken at 10:36 a.m. HST.
Multiple explosions at Kīlauea's summit occurred throughout today, with some of the ash plumes rising 6,000 to 7,000 feet above sea level. HVO scientists keeping tabs on the explosions from a safe distance captured these images. This photo was taken at 10:36 a.m. HST.
The fissure complex remains active in Kīlauea Volcano's lower East Rift Zone. At times, fountaining at Fissure 22 reached a height of about 50 m (about 160 ft).
The fissure complex remains active in Kīlauea Volcano's lower East Rift Zone. At times, fountaining at Fissure 22 reached a height of about 50 m (about 160 ft).
A helicopter overflight of Kīlauea Volcano's lower East Rift Zone shows the interaction of lava and seawater to produce a laze plume. Laze is formed when lava enters the ocean. The interaction sends hydrochloric acid and steam with fine glass particles into the air.
A helicopter overflight of Kīlauea Volcano's lower East Rift Zone shows the interaction of lava and seawater to produce a laze plume. Laze is formed when lava enters the ocean. The interaction sends hydrochloric acid and steam with fine glass particles into the air.
Aerial view of an active lava break-out.
An aerial view looking downrift from Leilani Estates at erupting fissures 5, 6, 19, and 22. Ponded lava from these fissures fed lava channels moving downslope, right side of the image, including the channels that fed the ocean entries just north of MacKenzie State Park. USGS photo taken on May 22, 2018, by S. Isgett.
An aerial view looking downrift from Leilani Estates at erupting fissures 5, 6, 19, and 22. Ponded lava from these fissures fed lava channels moving downslope, right side of the image, including the channels that fed the ocean entries just north of MacKenzie State Park. USGS photo taken on May 22, 2018, by S. Isgett.
Solidified lava from Fissure 17 (located to the east of the currently active fissure complex) has a consistency similar to toothpaste.
Solidified lava from Fissure 17 (located to the east of the currently active fissure complex) has a consistency similar to toothpaste.
View during an early morning overflight of Kīlauea Volcano's lower East Rift Zone. Two fissures (not pictured) are sending lava down two channels that merge near the coast.
View during an early morning overflight of Kīlauea Volcano's lower East Rift Zone. Two fissures (not pictured) are sending lava down two channels that merge near the coast.
Lava fountain at fissure 22, 9:03 a.m. HST, from the north side the fissure complex. Geologists report this morning the lava fountain as high as about 50 m (164 ft).
Lava fountain at fissure 22, 9:03 a.m. HST, from the north side the fissure complex. Geologists report this morning the lava fountain as high as about 50 m (164 ft).
By the end of the afternoon, only a single ocean entry was active. The lava channel originates from fissure 22. This photo was taken during a late afternoon overflight of the lower East Rift Zone, Kīlauea Volcano.
By the end of the afternoon, only a single ocean entry was active. The lava channel originates from fissure 22. This photo was taken during a late afternoon overflight of the lower East Rift Zone, Kīlauea Volcano.
Helicopter overflight of Kīlauea Volcano's Lower East Rift Zone shows fountaining at Fissure 22.
Helicopter overflight of Kīlauea Volcano's Lower East Rift Zone shows fountaining at Fissure 22.
Lava continues to enter the sea at two locations this morning. During this morning's overflight, the wind was blowing the "laze" plumes along the shoreline toward the southwest.
Lava continues to enter the sea at two locations this morning. During this morning's overflight, the wind was blowing the "laze" plumes along the shoreline toward the southwest.
Map as of 8:00 am HST, May 21. Shaded purple areas indicate lava flows erupted in 1840, 1955, 1960, and 2014-2015.
Map as of 8:00 am HST, May 21. Shaded purple areas indicate lava flows erupted in 1840, 1955, 1960, and 2014-2015.
Lava flows from the Fissure 20 complex move downslope and enter the ocean. Lava can be seen in the middle of the channel. A laze plume hides the point of ocean entry.
Lava flows from the Fissure 20 complex move downslope and enter the ocean. Lava can be seen in the middle of the channel. A laze plume hides the point of ocean entry.
Lava from the eastern channel of the Fissure 20 complex is flowing into a crack in the ground that opened on the morning of May 20, 2018. The crack is "robbing" the easternmost channel of lava and the eastern ocean entry is therefore less vigorous than the western entry point.
Lava from the eastern channel of the Fissure 20 complex is flowing into a crack in the ground that opened on the morning of May 20, 2018. The crack is "robbing" the easternmost channel of lava and the eastern ocean entry is therefore less vigorous than the western entry point.
Map as of 11:00 am HST, May 20. Shaded purple areas indicate lava flows erupted in 1840, 1955, 1960, and 2014-2015. Site of active ocean entry is shown with dots.
Map as of 11:00 am HST, May 20. Shaded purple areas indicate lava flows erupted in 1840, 1955, 1960, and 2014-2015. Site of active ocean entry is shown with dots.
Video of a slow moving lava flow in Kīlauea Volcano's lower East Rift Zone, taken May 20, 2018, at around 2:31 AM HST. The flow is ~3 m (9 ft) high. The HVO scientist mapping the flow is about ~15 m (50 ft) away from the flow front. The audio is the sound of burning vegetation and the call of coqui frogs.
Video of a slow moving lava flow in Kīlauea Volcano's lower East Rift Zone, taken May 20, 2018, at around 2:31 AM HST. The flow is ~3 m (9 ft) high. The HVO scientist mapping the flow is about ~15 m (50 ft) away from the flow front. The audio is the sound of burning vegetation and the call of coqui frogs.
Lava from the eastern channel of the Fissure 20 complex flows into a crack in the ground. The crack opened in the early morning hours of May 20, 2018. Prior to opening, lavawas flowing vigorously down a channel. After the crack formed, the lava began pouring into the ground.
Lava from the eastern channel of the Fissure 20 complex flows into a crack in the ground. The crack opened in the early morning hours of May 20, 2018. Prior to opening, lavawas flowing vigorously down a channel. After the crack formed, the lava began pouring into the ground.