Activity Bulletin Friday, September 5, 2015 at 15:00 (Local Time)
The eruption that began on August 24, 2015 at 18:50 continues.
The trend observed these days continues: The eruptive tremor remains high and we maintain the hypothesis that this increase is not related to an increase of the phenomenon of dynamism, but a change of the feed conduit.
Gas and flow rate measurements carried out remotely (stations that measure the flow of gas from Remparts and thermal / infrared by satellite) confirm this hypothesis because the observed values remain constant or slightly decrease over the two days.
On the field the same trend is visible. The eruptive cone closes more. Inside, the lava lake is separated into two separate units. Fountains are less high than in previous days. The flows of lava are always at the tunnel exit located about 50 meters below the vent. This morning (September 5th 11:00) five small streams were present at the foot of the cone. Four of them were doing about thirty meters long. The fifth, most important, flowed east on a distance less than one kilometer.
September 06 , 2015. Piton de la Fournaise, La Réunion :
Source : OVPF
Photos : Bruno Tandrya.