OVPF reported that the eruption at Piton de la Fournaise that began on 19 September, E of Piton Kala Pl, was ongoing during 21-27 September. Gas plumes drifted SW, WSW, W, NNW, and were detected as far as 200 km from the vent in a 27 September satellite image. The active cone on the low end of the fissure ejected lava to low heights above the cone?s rim. Lava flows from the base of the cone formed two main flows that traveled SE and ESE. Lava flowed through sections of tubes mainly located along the first kilometer of both flows. Average daily lava-flow rate estimates varied from 1 to 8 meters per second based on satellite data. The SE flow front had advanced to the Chteau Fort crater area, reaching 2,000 m elevation on 24 September, though that flow had stopped advancing by 26 September. The eruption was confined to the caldera, so the Alert Level remained at 2-1 (?2? is the highest level of a 3-level scale and ?-1? denotes the lowest of three sub-levels).
Source: Observatoire Volcanologique du Piton de la Fournaise (OVPF)
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