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Kilauea volcan
Shield volcano 1277 m (4,190 ft)
Hawai'i, 19.41°N / -155.29°W
Condition actuelle: normal / en sommeil (1 sur 5)
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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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Kilauea volcano update: Ongoing summit subsidence triggers continuous M2-M3 earthquakes with a daily M5 subsurface explosion

Monday Jun 18, 2018 10:26 AM | IS

Photograph showing the inward slumping of Halema‘uma‘u crater rim and walls in response to ongoing subsidence of Kilauea’s summit. This view to the southwest, taken after the explosion that occurred on the morning of 16 June, a section of dark-coloured wall rock (center left) has detached and dropped downward into the crater. (HVO/USGS)
Photograph showing the inward slumping of Halema‘uma‘u crater rim and walls in response to ongoing subsidence of Kilauea’s summit. This view to the southwest, taken after the explosion that occurred on the morning of 16 June, a section of dark-coloured wall rock (center left) has detached and dropped downward into the crater. (HVO/USGS)
Comparison of Halema`uma`u photos taken from the same location in Volcano House on the north rim of Kilauea caldera on May 19 and June 13, 2018. The focal length of the lens for each photo is almost the same. The photos show the enlargement of Halema`uma`u laterally and vertically -- note how much lower the rim is relative to the tree in June compared to May. (HVO/USGS)
Comparison of Halema`uma`u photos taken from the same location in Volcano House on the north rim of Kilauea caldera on May 19 and June 13, 2018. The focal length of the lens for each photo is almost the same. The photos show the enlargement of Halema`uma`u laterally and vertically -- note how much lower the rim is relative to the tree in June compared to May. (HVO/USGS)
This diagram shows all earthquakes registered on Kilauea volcano up to a depth of 30 km during the past 7 days. It clearly shows the seismic cycle that has started at the end of May and is now well established into a ca. 24 hour gradual build up to a M5 event. (www.VolcanoDiscovery.com)
This diagram shows all earthquakes registered on Kilauea volcano up to a depth of 30 km during the past 7 days. It clearly shows the seismic cycle that has started at the end of May and is now well established into a ca. 24 hour gradual build up to a M5 event. (www.VolcanoDiscovery.com)
This radar interferogram shows the deformation that occurred on Kilauea volcano between June 10 and 16 as seen from space by the Sentinel-1 satellite. Colored fringes indicate motion of the ground surface, with more fringes meaning more deformation. The image shows that there is little ground motion along the East Rift Zone despite the ongoing lower East Rift Zone eruption.  However, at the summit the fringes are so close together in the center of the caldera that they merge together and cannot be distinguished -- a sign of the extreme and rapid style of subsidence happening at Kilauea’s summit. (HVO/USGS)
This radar interferogram shows the deformation that occurred on Kilauea volcano between June 10 and 16 as seen from space by the Sentinel-1 satellite. Colored fringes indicate motion of the ground surface, with more fringes meaning more deformation. The image shows that there is little ground motion along the East Rift Zone despite the ongoing lower East Rift Zone eruption. However, at the summit the fringes are so close together in the center of the caldera that they merge together and cannot be distinguished -- a sign of the extreme and rapid style of subsidence happening at Kilauea’s summit. (HVO/USGS)
Kilauea’s summit caldera continues to subside in response to the withdrawal of magma from beneath the volcano’s summit that drains to the Lower East Rift Zone eruption site. The seismic cycle with M5 events and explosions in Halema’uama’u crater also persists, resulting in inward slumping of the crater rim and walls.

HVO/USGS report that during the night from 14 to 15 June seismicity increased once again to about 40 events per hour, including up to 5 magnitude-3+ earthquakes per hour, many of which were felt in the nearby village of Volcano. This gradual build up continued on June 15, 2018, and resulted in over 180 seismic events between 6 am and noon, 8 of which were stronger than magnitude-3.0. Finally an explosive event occurred at 11:56 AM that produced an ash and gas plume to nearly 3050 m (10,000 ft). This explosive event was captured by the Kilauea caldera live streaming camera and a video can be seen in the FB post below:


Seismicity dropped abruptly after the explosive event but then slowly started to build up again over the next hours. By the early morning of June 16, 2018, about 35 earthquakes were recorded each hour and this seismicity culminated at 10:22 AM in a subsurface explosion with energy equivalent to a magnitude-5.3 earthquake which produced a weak gas and ash emission plume that rose from Halemaʻumaʻu crater. Once the plume had cleared up, the Kilauea caldera webcam showed fresh collapse of Halemaʻumaʻu crater rim. Again, seismicity dropped abruptly right after this event but slowly increased during the day reaching 25 earthquakes per hour (magnitude
Actualités précédentes
This photo take during a 17 June, 2018, morning overflight shows a fissure 8 lava fountain pulsing to heights of 50 m (165 ft) within the cinder spatter cone. (HVO/USGS)
Monday, Jun 18, 2018
Throughout the weekend, Kilauea’s lower East Rift Zone eruption persisted to vigorously effusive large amounts of lava from fissure 8 which travelled along the well established 13 km (8 mile) channel to the broad ocean entry at Kapoho. ... [details]
Sunday, Jun 17, 2018
Volcanic Ash Advisory Center Washington (VAAC) issued the following report: ... [details]
Friday, Jun 15, 2018
Volcanic Ash Advisory Center Washington (VAAC) issued the following report: ... [details]
June 14, 2018, aerial view of the northern margin of the ocean entry where the largest Pāhoehoe breakout area is. Several laze plumes rise along the margin as lava break outs feed many small and large flows. (HVO/USGS)
Friday, Jun 15, 2018
During day 42 of Kilauea’s lower East Rift Zone eruption, lava unabatedly poured out of the vent at fissure 8 and rapidly flowed through the well-established ca 13 km (8 Miles) long channel into the wide ocean entry at Kapoho. ... [details]
Thursday, Jun 14, 2018
Volcanic Ash Advisory Center Washington (VAAC) issued the following report: ... [details]

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