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Piton de la Fournaise volcano (Reunion Island, France) - Smithsonian / USGS Weekly Volcanic Activity Report for 19 August-25 August 2015 (New Activity / Unrest)

Wed, 19 Aug 2015, 06:00
06:00 AM | BY: VN
On 24 August OVPDLF reported continued deformation and an increase in seismicity at Piton de la Fournaise during the previous several days, and a significant increase in seismicity that morning. Sulfur dioxide gas emissions increased at 1600, and at 1711 the seismic and deformation network indicated a magmatic intrusion. Lava fountains were visible at 1850 from a fissure on the S flank of Dolomieu Crater, at about 2000 m elevation, near Rivals Crater.
The fissure propagated towards the top of Rivals, and at around 2115 a fissure opened to the NW, below Bory Crater. The lava-flow rate was 30-60 cubic meters per second. By the next morning fountains at higher elevations ceased, and were only active from a 100-m-long section near Rivals Crater.
The lava flow rate had significantly decreased to 10 cubic meters per second. Near the top of the active fissure a 140-m-high cone had formed.

Source: Observatoire Volcanologique du Piton de la Fournaise (OVPF)
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From: Global Volcanism Program, 2015. Report on Piton de la Fournaise. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 19 August-25 August 2015. Smithsonian Institution and US Geological Survey.

Previous news

Mon, 3 Aug 2015, 09:34
Eruptive fissure of Piton de la Fournaise on 31 July (image: Paul Dérand)
After less than 3 days, the eruption already ended Sunday morning. The volcano observatory reported that tremor and lava effusion ceased abruptly at 11:15. However, a new eruptive phase in the near future cannot be ruled out. ... Read all
Fri, 31 Jul 2015, 10:52
The new eruptive fissure at Piton de la Fournaise (image: Guillaume Cazarré / clicanoo)
The expected new eruption, the third in 2015, started this morning at 09.20 local time. Read all
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