OVPF reported that a seismic crisis began at Piton de la Fournaise at 1521 on 16 February accompanied by rapid deformation.
The number of earthquakes sharply decreased at 1618 and deformation stopped at 1630.
A second seismic crisis began at 0916 on 18 February, again accompanied by rapid deformation.
Tremor commenced at 0948, coincident with at least eruptive fissures opening on the E flank of Dolomieu crater.
Weather conditions prevented good views of the eruption site.
Lava fountains rose less than 30 m above the vents, and after about an hour the longest lava flow reached 1,900 m elevation.
Lava effusion ceased at 2200 on 18 February.
A seismic crisis began at 1500 on 19 February, and tremor began to be recorded at 1700.
Gas emissions were recorded by webcams for about an hour.
During an overflight on 20 February the OVPF team observed a new eruption site located at 1,800 m elevation at the foot of Piton Madoré.
One fissure opened and at 0620 only one lava fountain was active.
The front of a lava flow reached 1,300 m elevation.
Source: Observatoire Volcanologique du Piton de la Fournaise (OVPF)