a cinder-and-spatter cone around the vent, with the highest part of the cone (about 125 feet high, 38 meters high) on the downwind side.
2/98 SLIDES © USGS HANDOUT/EPA-EFE/REX/Shutterstock
An undated handout photo made available by the United States Geological Survey (USGS) on June 13 shows Kilauea volcano's summit. Events at the summit of Kilauea over the past few weeks have dramatically reshaped Halema'uma'u, shown here in this aerial view, which looks west across the crater. The obvious flat surface (photo center) is the former Halema'uma'u crater floor, which has subsided at least 100m during the past couple weeks. The deepest part of Halema'uma'u (foreground) is now about 300m below the crater rim.
3/98 SLIDES © USGS HANDOUT/EPA-EFE/REX/Shutterstock
In this Sunday, June 10, 2018, photo provided by the U.S. Geological Survey, a USGS and Hawaii Volcano Observatory geophysicist installs additional continuous GPS stations around the summit Halema'uma'u crater atop Kilauea Volcano in the island of Hawaii.
4/98 SLIDES © L.E. Baskow/AP Images
Lava from the Kilauea volcano flows in and around Pahoa, Hawaii, on June 10.
5/98 SLIDES © L.E. Baskow/AP Images
Lava from the Kilauea volcano, flows near the Puna Geothermal Venture power plant, on June 10 in Pahoa, Hawaii.
6/98 SLIDES © U.S. Geological Survey/AP Images
Kilauea Volcano's upper fissure 8 lava channel flowing laterally, sent small flows of lava down the "levee" walls, near Kapoho, on the island of Hawaii. These overflows did not extend far from the channel, so they posed no immediate threat to nearby areas.
7/98 SLIDES © Terray Sylvester/Reuters
Journalists and National Guard soldiers watch as lava erupts in Leilani Estates during ongoing eruptions of the Kilauea Volcano in Hawaii, on June 9.
8/98 SLIDES © Terray Sylvester/Reuters
Lava illuminates a sign in Leilani Estates during ongoing eruptions of the Kilauea Volcano in Hawaii, on June 9.
9/98 SLIDES © U.S. Geological Survey/AP Photo
This photo provided by the U.S. Geological Survey, an aerial view of the Kapoho ocean entry on June 9, shows the extent of the lava delta, now about 200 acres in size, that has formed over the past six days as it enters the Pacific Ocean, as Kilauea Volcano continues its eruption cycle near Pahoa on the island of Hawaii.
10/98 SLIDES © Terray Sylvester/Reuters
Lava covers a road on the outskirts of Pahoa during ongoing eruptions of the Kilauea Volcano in Hawaii, on June 9.
11/98 SLIDES © Terray Sylvester/Reuters
Soldiers of the Hawaii National Guard build temporary housing units for evacuees in Pahoa during ongoing eruptions of the Kilauea Volcano in Hawaii, on June 9.
12/98 SLIDES © Terray Sylvester/Reuters
Soldiers of the Hawaii National Guard watch construction of temporary housing units for evacuees in Pahoa during ongoing eruptions of the Kilauea Volcano in Hawaii, on June 9.
13/98 SLIDES © Terray Sylvester/Reuters
Hawaii County Mayor Harry Kim thanks soldiers of the Hawaii National Guard as they build temporary housing units for evacuees in Pahoa during ongoing eruptions of the Kilauea Volcano in Hawaii, on June 9.
14/98 SLIDES © Terray Sylvester/Reuters
Volunteers build temporary housing units for evacuees in Pahoa during ongoing eruptions of the Kilauea Volcano in Hawaii, on June 9.
15/98 SLIDES © TERRAY SYLVESTER/Reuters
Lava covers a road near Pahoa on June 8.
16/98 SLIDES © TERRAY SYLVESTER/Reuters
Lava erupts in Leilani Estates on June 8.
17/98 SLIDES © TERRAY SYLVESTER/Reuters
A lava flow illuminates the evening sky above soldiers of the Hawaii National Guard near Pahoa on June 8.
18/98 SLIDES © U.S. Geological Survey/AP Photo
This photo provided by the U.S. Geological Survey shows gases rising from Halemaumau Crater atop Kilauea Volcano during an overflight of the summit at 10 a.m. HST at Hawaii Volcanoes National Park on June 8.
19/98 SLIDES © U.S. Geological Survey/AP
This photo provided by the U.S. Geological Survey shows a Hawaii Volcano Observatory scientist measuring fountain height and taking high-resolution video to determine whether the volume of material exiting what is known as fissure 8 has changed, above the town of Kapoho on June 8 on the island of Hawaii.
20/98 SLIDES © U.S. Geological Survey via AP
This photo provided by the U.S. Geological Survey shows sunrise highlighting twin pillars of rising gases that merge into a towering cap above Halemaʻumaʻu Crater at Hawaii Volcanoes National Park on the island on June 8 of Hawaii.
21/98 SLIDES © U.S. Geological Survey/AP
This photo provided by the U.S. Geological Survey shows lava from Kilauea Volcano continuing to pour into the ocean near the town of Kapoho on June 8 on the island of Hawaii.
22/98 SLIDES © U.S. Geological Survey/AP
This photo provided by the U.S. Geological Survey shows fountaining from what is known as fissure 8 in Kīlauea Volcano's lower East Rift Zone above Kapoho on June 8 on the island of Hawaii.
23/98 SLIDES © U.S. Geological Survey/AP Photo
This photo provided by the U.S. Geological Survey shows the parking area for the former Halema'uma'u overlook, closed since 2008, strewn with small ballistic block at Hawaii Volcanoes National Park on June 7.
24/98 SLIDES © LE Baskow/AP Photo
Most of the Kapoho area is now covered in fresh lava as the Kilauea Volcano eruption continues on June 6 in Pahoa, Hawaii.
25/98 SLIDES © LE Baskow/AP Photo
The caldera on the Kilauea Volcano emits a small amount of steam.
26/98 SLIDES © LE Baskow/AP Photo
A fissure continues to blast fresh lava several hundred feet in the air.
27/98 SLIDES © U.S. Geological Survey/AP Photo
A photo from the U.S. Geological Survey shows a laze (lava haze) plume.
28/98 SLIDES © LE Baskow/AP Photo
Fissure 8 continues to blast fresh lava several hundred feet in the air.
29/98 SLIDES © Terray Sylvester/Reuters
Sky Mullins pilots a tour boat as lava flows into the Pacific Ocean during ongoing eruptions of the Kilauea Volcano in Hawaii.
30/98 SLIDES © Terray Sylvester/Reuters
Lava flows on the outskirts of Pahoa during ongoing eruptions of the Kilauea Volcano in Hawaii, June 5.
31/98 SLIDES © Terray Sylvester/Reuters
Lava threatens homes on the outskirts of Pahoa during ongoing eruptions of the Kilauea Volcano in Hawaii, June 5.
32/98 SLIDES © Terray Sylvester/Reuters
Lava flows on the outskirts of Pahoa during ongoing eruptions of the Kilauea Volcano in Hawaii, June 5.
33/98 SLIDES © Terray Sylvester/Reuters
Lava erupts in Leilani Estates during ongoing eruptions of the Kilauea Volcano, on June 5, in Hawaii.
34/98 SLIDES © Terray Sylvester/Reuters
Lava destroys homes in the Kapoho area, east of Pahoa, during ongoing eruptions of the Kilauea Volcano on June 5, in Hawaii.
35/98 SLIDES © Terray Sylvester/Reuters
Lava flows into the Pacific Ocean in the Kapoho area, east of Pahoa, during ongoing eruptions of the Kilauea Volcano, on June 5, in Hawaii.
36/98 SLIDES © Terray Sylvester/Reuters
Lava flows across a highway on the outskirts of Pahoa during ongoing eruptions of the Kilauea Volcano on June 5, in Hawaii.
37/98 SLIDES © Terray Sylvester/Reuters
Lava destroys homes in the Kapoho area, east of Pahoa, during ongoing eruptions of the Kilauea Volcano, on June 5, in Hawaii.
38/98 SLIDES © Terray Sylvester/Reuters
People watch from a tour boat as lava flows into the Pacific Ocean in the Kapoho area, east of Pahoa, during ongoing eruptions of the Kilauea Volcano, on June 4, in Hawaii.
39/98 SLIDES © DigitalGlobe, a Maxar company/AP Photo
This satellite image provided by Digital Globe captured June 3, shows advancing lava flows on Hawaii as they approach Kapoho Bay and the Vacationland residential neighborhood.
40/98 SLIDES © Terray Sylvester/Reuters
Major Jeff Hickman, of the Hawaii National Guard, measures sulfur dioxide gas levels at a lava flow near Pahoa during ongoing eruptions of the Kilauea Volcano in Hawaii.
41/98 SLIDES © erray Sylvester/Reuters
Soldiers of the Hawaii National Guard measure sulfur dioxide gas levels near a lava flow in Leilani Estates during ongoing eruptions of the Kilauea Volcano in Hawaii, June 3.
42/98 SLIDES © Terray Sylvester/Reuters
Lava illuminates the sky above Leilani Estates during ongoing eruptions of the Kilauea Volcano in Hawaii, U.S., June 3.
43/98 SLIDES © Terray Sylvester/Reuters
Soldiers from the Hawaii National Guard monitor sulfur dioxide gas levels near a lava flow in Leilani Estates during ongoing eruptions of the Kilauea Volcano in Hawaii, U.S., June 3.
44/98 SLIDES © Terray Sylvester/Reuters
Lava erupts behind a home in Leilani Estates during ongoing eruptions of the Kilauea Volcano in Hawaii, U.S., June 3.
45/98 SLIDES © Terray Sylvester/Reuters
Sgt. Gavin Ching (R) of the Hawaii National Guard monitors sulfur dioxide gas levels in Leilani Estates during ongoing eruptions of the Kilauea Volcano in Hawaii.
46/98 SLIDES © MediaPunch/REX/Shutterstock
The glow of Hawaii's Kilauea Volcano seen from Pahoa, Hawaii Kilauea volcano eruption, Hawaii,on 02 Jun.
47/98 SLIDES © MediaPunch/Rex Shutterstock
The glow of Hawaii's Kilauea Volcano is seen from Pahoa, Hawaii, on June 2.
48/98 SLIDES © MediaPunch/Rex Shutterstock
Hawaii's Kilauea Volcano erupts on June 2.
49/98 SLIDES © Terray Sylvester/Reuters
Darryl Sumiki, 52, of Hilo, watches as lava lights up the sky above Pahoa during ongoing eruptions of the Kilauea Volcano in Hawaii, on June 2.
50/98 SLIDES © U.S. Geological Survey/AP Photo
In this June 2 photo provided by the U.S. Geological Survey, the East side of the Fissure 8 flow is seen on the "lighthouse road," east of the Four Corners intersection near Pahoa, Hawaii.
51/98 SLIDES © U.S. Geological Survey/AP Photo
In this June 2 photo provided by the U.S. Geological Survey, a Hawaiian Volcano Observatory geologist documents the Fissure 8 flow southeast of Four Corners, at the intersection of Highways 132 and 137, near Pahoa, Hawaii.
52/98 SLIDES © U.S. Geological Survey/AP Photo
In this June 2 aerial photo provided by the U.S. Geological Survey, the Fissure 8 flow front is seen as it advances west along Highway 132 near Pahoa, Hawaii.
53/98 SLIDES © MediaPunch/Rex Shutterstock
Emergency donations and support center for residents affected around Hawaii's Kilauea Volcano in Pahoa, Hawaii on June 2.
54/98 SLIDES © Erik Kabik Photography/ MediaPunch /IPX/AP Photo
Fissure 8 photographed during eruption of Hawaii's Kilauea Volcano in Pahoa, Hawaii on June 2.
55/98 SLIDES © Erik Kabik Photography/MediaPunch /IPX/AP Photo
Emergency donations and support center for residents affected around Hawaii's Kilauea Volcano in Pahoa, Hawaii on June 2.
56/98 SLIDES © Erik Kabik Photography/MediaPunch /IPX/AP Photo
Atmosphere around Hawaii's Kilauea Volcano in Pahoa, Hawaii on June 2.
57/98 SLIDES © Erik Kabik Photography/MediaPunch /IPX/AP Photo
Lava Flows pictured at Hawaii's Kilauea Volcano in Pahoa, Hawaii on June 2.
58/98 SLIDES © Erik Kabik Photography/MediaPunch /IPX/AP Photo
Emergency donations and support center for residents affected around Hawaii's Kilauea Volcano in Pahoa, Hawaii on June 2.
59/98 SLIDES © Erik Kabik Photography/MediaPunch /IPX/AP Photo
A Helicopter Pilot over Hawaii's Kilauea Volcano in Pahoa, Hawaii on June 2.
60/98 SLIDES © Bruce Omori/Paradise Helicopters/EPA-EFE/Rex Shutterstock
Kilauea's lower east rift zone eruption continues, as fissure 8 continues to effuse lava at a high rate, feeding a massive river that meanders toward the coast, Pahoa, Hawaii on May 31.
61/98 SLIDES © Bruce Omori/Paradise Helicopters/EPA-EFE/Rex Shutterstock
Kilauea's lower east rift zone eruption continues, as fissure 8 continues to effuse lava at a high rate, feeding a massive river that meanders toward the coast, Pahoa, Hawaii on May 31.
62/98 SLIDES © U.S. Geological Survey/AP Photo
In this photo provided by the U.S. Geological Survey, crews make visual observations of lava activity at fissure 8 on May 31 near Pahoa, Hawaii.
63/98 SLIDES © Bruce Omori/Paradise Helicopters/EPA-EFE/Rex Shutterstock
Kilauea's lower east rift zone eruption continues, as fissure 8 continues to effuse lava at a high rate, feeding a massive river that meanders toward Kapoho, while reactivated fissure 18 feeds a flow advancing in the direction of Ahalanui Park, Pahoa, Hawaii on May 31.
64/98 SLIDES © U.S. Geological Survey/AP Photo
In this aerial photo provided by the U.S. Geological Survey, lava flows from fissure 8 near Pahoa, Hawaii on May 30.
65/98 SLIDES © U.S. Geological Survey via AP
This May 29 photo from video provided by the U.S. Geological Survey shows lava from a fissure creating fountains up to 200 feet at times, near Pahoa, Hawaii
66/98 SLIDES © U.S. Geological Survey via AP
This Tuesday, May 29 photo provided by the U.S. Geological Survey shows what is known as tephra, airborne lava fragments, erupted by the high lava fountains of fissure 8 and carried downwind, where the frothy rock fragments fell on Leilani Street, just past Kupono Street, in the Leilani Estates subdivision.
67/98 SLIDES © Marco Garcia/Reuters
Utility poles and power lines sit destroyed in the Kilauea lava flow on Pohoiki Road near Pahoa, Hawaii on May 29.
68/98 SLIDES © Marco Garcia/Reuters
Tech Sgt. Andrew Lee Jackson, of the Hawaii National Guard, takes photos of the Kilauea lava flow, in Leilani Estates near Pahoa, Hawaii on May 29.
69/98 SLIDES © Marco Garcia/Reuters
Mehana Kihoi hands out goods to Leilani Estate evacuees at the community organized Pu'uhonua o Puna, a center to help those affected by the recent lava eruption, in Pahoa, Hawaii on May 29.
70/98 SLIDES © Marco Garcia/Reuters
Volcanic gases rise from the Kilauea lava flow that crossed Pohoiki Road near Highway 132, on May 28 near Pahoa, Hawaii.
71/98 SLIDES © Marco Garcia/Reuters
Volcanic gases rise from the Kilauea lava flow that crossed Pohoiki Road near Highway 132, on May 28 near Pahoa, Hawaii.
72/98 SLIDES © Marco Garcia/Reuters
Lava encircles several homes in the Leilani Estates near on May 28 in Pahoa, Hawaii.
73/98 SLIDES © USGS/Handout/Reuters
Pahoehoe lava advances west from fissure 7 on Leilani Avenue as a lava fountain is seen in the background at Kilauea Volcano's lower East Rift Zone on May 27 in Hawaii.
74/98 SLIDES © Marco Garcia/Reuters
Lava shoots out of a fissure in the Leilani Estates near on May 28 in Pahoa.
75/98 SLIDES © Marco Garcia/Reuters
Lava approaches the Puna Geothermal Venture in the Leilani Estates near on May 28 in Pahoa.
76/98 SLIDES © Bruce Omori/Paradise Helicopters/EPA-EFE/Rex Shutterstock
An increase in volume of lava being produced by fissure 7 has huge rivers of lava moving toward the sea. A massive flow was also headed toward the Puna Geothermal Venture facility in Pahoa, Hawaii on May 27.
77/98 SLIDES © Mario Tama/Getty Images
A traditional hula practitioner holds an offering on a recent lava flow from a Kilauea volcano fissure on Hawaii's Big Island on May 27 in Pahoa, Hawaii.
78/98 SLIDES © Marco Garcia/Reuters
Onlookers gather at the foot of the lava bed as it shoots molten rock into the air in the Leilani Estates near Pahoa, Hawaii on May 27.
79/98 SLIDES © Bruce Omori/Paradise Helicopters/EPA-EFE/Rex Shutterstock
An eruption on Kilauea's lower east rift zone sent a massive lava flow toward the Puna Geothermal Venture facility (lower left corner) in Pahoa, Hawaii on May 27.
80/98 SLIDES © MARCO GARCIA/Reuters
Police officers stand guard to keep onlookers from getting close to the Kilauea lava flow that is advancing into the area in the Leilani Estates on May 27 in Pahoa, Hawaii.
81/98 SLIDES © MARCO GARCIA/Reuters
Hannique Ruder marvels at a colorful shard of lava rock she picked up at the lava flow near Nohea Street in the Leilani Estates on May 27 near Pahoa, Hawaii.
82/98 SLIDES © Mario Tama/Getty Images
Onlookers and photographers walk on hardened lava from a Kilauea volcano fissure as lava erupts in Leilani Estates on Hawaii's Big Island on May 26 in Pahoa, Hawaii.
83/98 SLIDES © U.S. Geological Survey/AP Photo
This May 26 image from the U.S. Geological Survey Hawaiian Volcano Observatory (HVO) Tower shows explosive episodes at Kilauea's Volcano's summit, which scientists say are caused by magma withdrawing from a shallow reservoir beneath the east margin of the crater, in Hawaii Volcanoes National Park on the island of Hawaii.
84/98 SLIDES © Marco Garcia/Reuters
Onlookers gather in front of a fresh lava flow from the Kilauea Volcano, in the Leilani Estates near Pahoa, Hawaii on May 26.
85/98 SLIDES © Mario Tama/Getty Images
Zivile Roditis hugs Howie Rosin, left, shortly after Roditis' home was destroyed by lava from a Kilauea volcano fissure, in Leilani Estates, on Hawaii's Big Island on May 25 in Pahoa, Hawaii.
86/98 SLIDES © Mario Tama/Getty Images
Resident Bill Hubbard enters his home as lava from a Kilauea volcano fissure illuminates the sky in Leilani Estates, on Hawaii's Big Island on May 25 in Pahoa, Hawaii.
87/98 SLIDES © BRUCE OMORI/PARADISE HELICOPTERS/EPA-EFE/Rex Shutterstock
Lava flows past the remains of a greenhouse as it makes its way to the ocean after erupting from a fissure at Kilauea's lower east rift zone in Pahoa, Hawaii on May 25.
88/98 SLIDES © USGS/Handout/Reuters
Activity at fissure 6 is seen as lava fountains build a small spatter cone (black mound) from which lava spills out on the surface and flows into a small pond (left of the cone) in Hawaii on May 25.
89/98 SLIDES © USGS/Handout/Reuters
An aerial view of the active ocean entries at Kilauea Volcano's lower East Rift Zone in Hawaii on May 25.
90/98 SLIDES © Mario Tama/Getty Images
Community members watch as a home is destroyed by lava from a Kilauea volcano fissure in Leilani Estates, on Hawaii's Big Island on May 25 in Pahoa, Hawaii.
91/98 SLIDES © Marco Garcia/Reuters
Lava from the Kilauea volcano eruption burns palm trees near Kahukai St. in the Leilani Estates near Pahoa, Hawaii, on May 25.
92/98 SLIDES © Marco Garcia/Reuters
As a lava fissure erupts in the distance, a destroyed structure is seen in the Leilani Estates near Pahoa, Hawaii, on May 25. The ongoing eruption of Kilauea is the largest in decades, destroying more than 40 homes to date, and displacing thousands.
93/98 SLIDES © Bruce Omori/Paradise Helicopters/EPA-EFE/REX/Shutterstock
Lava flows into the ocean after erupting from a fissure at Kilauea's lower east rift zone in Pahoa, Hawaii, on May 25.
94/98 SLIDES © M. PATRICK/HANDOUT/EPA-EFE/Rex Shutterstock
A handout photo made available by the United States Geological Survey (USGS) shows channelized lava flows spilling into the ocean in the Kilauea lower East Rift Zone, Hawaii on May 24.
95/98 SLIDES © Mario Tama/Getty Images
USGS workers observe lava from a Kilauea volcano fissure in Leilani Estates, on Hawaii's Big Island, on May 24 in Pahoa, Hawaii. An estimated 40-60 cubic feet of lava per second is gushing from volcanic fissures in Leilani Estates.
96/98 SLIDES © Marco Garcia/Reuters
Lava gushes from a fissure of the Kilauea Volcano in the Leilani Estates near Pahoa, Hawaii on May 23.
97/98 SLIDES © Mario Tama/Getty Images
A steam plume rises as lava enters the Pacific Ocean at dawn, after flowing to the water from a Kilauea volcano fissure, on Hawaii's Big Island on May 22 near Pahoa, Hawaii.
98/98 SLIDES © Bruce Omori/Paradise Helicopters/EPA-EFE/REX/Shutterstock
An aerial view shows two storage warehouses, part of the Puna Geothermal Venture's facility, consumed by an eruption of reactivated fissure 6 in Pahoa, Hawaii on May 22.
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Wednesday, in the early morning hours, there was a small explosion at the summit of the volcano. The explosion was expected to cause some ashfall downwind.
A live stream of the volcano, provided by the United States Geological Survey, was available on YouTube. The stream shows the summit of the volcano taken from the Hawaiian Volcano Observatory’s observation tower. At night, there are no lights on the summit, so there isn’t much to see until dawn.
Tuesday’s Civil Defense message said that the health risks from the eruptions, as well as from the ocean entry of the lava, were still high. The Department of Health recommended that those in the area, specifically those with breathing problems, limit their time outside where they would be exposed to the emissions.
The sulfur dioxide emissions from the volcano can mix with the oxygen, water vapor and other gases in the atmosphere to cause a haze called “vog.” That vog is a health risk for those in the area and can cause irritation to the skin, eyes, nose and throat.
Another term specific to volcanic eruptions is laze, the by-product of the lava reaching and reacting with the cool water of the ocean. A large laze plume formed where the lava is continuously entering the ocean at Kapoho, and that plume can change direction easily with the wind at any moment.
The lava haze is a mix of hydrochloric acid and steam, along with tiny particles of volcanic glass that are all produced when the flowing lava reaches the ocean. The laze can damage lung tissue and can also irritate the skin and eyes like vog can. Additionally, the area where the lava enters the ocean is hazardous because the reaction between the two can cause small explosions of debris.
On Tuesday, fountains of lava from Fissure 8 were reaching heights of 130 to 140 feet in the air, according to the USGS. That was also causing Pele’s hair (a type of volcanic glass) and other volcanic glass byproducts to fall downwind from the eruption and into the residential area of Leilani Estates.
Other fissures, 16 and 18, were erupting small amounts of lava over the past several days but that activity has stopped, the USGS said. There is no way to predict how long the current volcanic activity from Kilauea will last, a USGS spokesperson told Newsweek.
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