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Kilauea volcan
Shield volcano 1277 m (4,190 ft)
Hawai'i, 19.41°N / -155.29°W
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Eruptions du volcan Kilauea:
Near-continuous eruptions. Since 1960: 1961 (4x), 1962, 1963 (2x), 1965 (2x), 1967-68, 1968 (2x), 1969, 1969-74, 1971 (2x), 1973 (2x), 1974 (3x), 1975, 1977, 1979, 1980, 1982 (2x), 1983-2008 (ongoing)
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Dominant effusive depuis 1790, mais ~ de 60% au cours des derniers explosive ~ 2500 ans.
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Nouvelles du volcan Kilauea

Kilauea volcano update: Kilauea lower East Zone Rift eruption: continued vigorous lava fountaining from fissure 8

Saturday Jun 09, 2018 08:39 AM | IS

Around 3:00 a.m. HST  on June 8, lava fountains erupting from fissure 8 on Kīlauea Volcano's Lower East Rift Zone were reaching heights of 55-65 meters (180–220 feet). (HVO/USGS)
Around 3:00 a.m. HST on June 8, lava fountains erupting from fissure 8 on Kīlauea Volcano's Lower East Rift Zone were reaching heights of 55-65 meters (180–220 feet). (HVO/USGS)
Fissures and lava flows map as of 12:00 p.m. (noon) HST, June 8, 2018. The fissure 8 flow has created a lava delta approximately 190 acres in size, filling Kapoho Bay and shallow reefs along the nearby coastline.  Shaded purple areas indicate lava flows erupted in 1840, 1955, 1960, and 2014-2015. (HVO/USGS)
Fissures and lava flows map as of 12:00 p.m. (noon) HST, June 8, 2018. The fissure 8 flow has created a lava delta approximately 190 acres in size, filling Kapoho Bay and shallow reefs along the nearby coastline. Shaded purple areas indicate lava flows erupted in 1840, 1955, 1960, and 2014-2015. (HVO/USGS)
June 7, 2018, ESA - European Space Agency #Sentinnel2 satellite image of Kilauea Volcano lava flows near Kapoho and Vacationland, Hawai. The fissure 8 channelized lava flow bends toward the south at Kapoho Crater then broadly spreads over the Kapoho area before entering the ocean. Note the red colours along the northern margin of the broad area - this is where the flow began expanding into Beach Lots yesterday. The laze plume rises from the ocean entry and combines with rain clouds. Naturalised SWIR/VIS, containing modified Copernicus Sentinel data (2018) processed by Pierre Markuse. (HVO/USGS)
June 7, 2018, ESA - European Space Agency #Sentinnel2 satellite image of Kilauea Volcano lava flows near Kapoho and Vacationland, Hawai. The fissure 8 channelized lava flow bends toward the south at Kapoho Crater then broadly spreads over the Kapoho area before entering the ocean. Note the red colours along the northern margin of the broad area - this is where the flow began expanding into Beach Lots yesterday. The laze plume rises from the ocean entry and combines with rain clouds. Naturalised SWIR/VIS, containing modified Copernicus Sentinel data (2018) processed by Pierre Markuse. (HVO/USGS)
On 7 June 2018, clear conditions at Pu’u O’o provided good views into the crater. The crater floor collapsed and the lava lake drained a little more than a month ago. The crater  now has a funnel shape geometry with a deep cylindrical shaft, filled with rubble. (HVO/USGS)
On 7 June 2018, clear conditions at Pu’u O’o provided good views into the crater. The crater floor collapsed and the lava lake drained a little more than a month ago. The crater now has a funnel shape geometry with a deep cylindrical shaft, filled with rubble. (HVO/USGS)
The eruption in the lower East Rift Zone remained concentrated on fissure 8, where continuous vigorous lava fountaining fluctuates, at times reaching heights of 70 meters (230 feet). This activity continues to feed the lava channel flowing northeast before turning westward toward Kapoho where it transforms in a very broad lava flow that by now almost entirely covered Kapoho and Vacationland and filled up Kapoho Bay. Sideways moving of this broad Kapoho Bay lava flow creeps north through what remains of Kapoho Beach Lots, but none of the other previously active lobes of the large fissure 8 flows are receiving fresh lava and have hence stalled. Also no other fissures apart from fissure 8 were actively erupting lava in the past few days. The only activity observed was some incandescence from fissure 24 and heavy fuming from fissures 24, 9 and 10 – all located just west of fissure 8.
About 600 homes have been destroyed by the multiple lava flows that were produced during this lower East Rift Zone eruption, in the Leilani Estates during the early days of the eruption and lately in Kapoho and Vacationaland. The large lava delta that has been created outside former Kapoho Bay is about 1.9 (1.2 mi) wide, creating multiple vigorously steaming lava ocean entries as well as upwelling of a large offshore area where lava is actively flowing onto the ocean floor. HVO/USGS warn that the lava delta is unstable because it is built on unconsolidated lava fragments and sand, loose material that can easily be eroded away by surf, causing the new land to become unsupported and slide into the sea. Additionally, the interaction of lava with the ocean creates "laze", a corrosive seawater plume laden with hydrochloric acid and fine volcanic particles that can irritate the skin, eyes, and lungs.

Since the start of the eruption about 35 days ago, the volume of lava erupted so far in Puna is about 0.11 cubic kilometres in total. Phil Ong compares this to the 35 years long eruption that had been going on at Pu’u O’o prior to the start of this eruption, and notices that although the eruption rate is about 25 times higher, is not nearly a match to the ca. 4.5 cubic kilometres that were erupted from Pu’u O’o since 1983. Much like the fate of the lava lake in Haleam’uma’u at Kilauea’s summit, the lava lake in Pu’u O’o has disappeared since all magma was drained to the eruption site in the lower East Rift Zone from early May. The crater floor of Pu’u O’o collapsed and the crater now has a funnel shape geometry with a deep cylindrical shaft, filled with rubble, that is about 350 meters (1150 feet) deep. The many earthquakes that are occurring on Kilauea volcano also affect the Pu’u O’o vent. HVO/USGS reports that tollowing a magnitude-3.2 earthquake at the summit, twelve rockfalls were recorded in Puʻu ʻŌʻō between 10:31 and 10:56 AM on Friday 8 June, with a prominent, but brief, red dust plume ejected into the air around 10:50 AM.
Actualités précédentes
This image taken on a mid-day overflight on June 5 shows the ongoing partial collapse of Haleama’uam’u crater at the summit of Kilauea volcano. To the north of the old overlook parking area (left in the image) is the site of the former lava lake – now a deep hole piled with wall-rock rubble. The western portion of Haleamu’uma’u (upper part of image) has moved down and toward the centre of the crater as new cracks form on the caldera floor to the west. The summit is still subsiding due to withdrawal of magma towards the east rift zone. (HVO/USGS)
Saturday, Jun 09, 2018
Subsidence of Kilauea’s summit keeps going on as magma continues to be drained from the summit area towards the active fissure eruption site in the lower East Rift Zone. As much as 9900 earthquakes have been registered on Kilauea over the past 30 days, most of which occurred at the volcano’s summit. These events have led to dramatic changes in and around Halema’uma’a crater which for the past 10 years contained an active lava lake. Since the start of the lower East Rift Zone eruption, this lava lake has been systematically drained – leaving behind a large empty vent with unstable walls that partially collapse, creating explosions with large ash plumes. Continuous deflation of the whole summit area and its accompanying earthquakes in turn also destabilise the walls of the Halema’uma’u vent and surrounding crater, resulting in widening of the vent and partial collapse of the crater as its west side is slumping inwards due to the formation of large cracks on the Kilauea caldera floor. ... [details]
Friday, Jun 08, 2018
Volcanic Ash Advisory Center Washington (VAAC) issued the following report: ... [details]
Thursday, Jun 07, 2018
Volcanic Ash Advisory Center Washington (VAAC) issued the following report: ... [details]
Lava fountaining and active flow to the NE from fissure #8 at Kilauea's lower east rift zone this morning (night in Hawaii)
Thursday, Jun 07, 2018
The activity in the lower east rift zone continues with no significant changes. After a brief episode of declining output of magma from fissure #8 and the contemporary reactivation and lava effusion from a number of other fissures, activity shifted back to fissure #8 which has been the main vent of the rift eruption over the past week. ... [details]
Thursday, Jun 07, 2018
Volcanic Ash Advisory Center Washington (VAAC) issued the following report: ... [details]

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