OVPF reported that the eruption at Piton de la Fournaise which began on 27 April from fissures at Rivals Crater continued through 22 May.
Flowing lava was mostly confined to tubes, though spatter was ejected 20-30 m above the highest-elevation (and most active) vent of the three.
Lava was weakly ejected from the lowest-elevation vent.
CO2 concentrations at the summit were high.
Inflation continued to be detected.
Tremor levels had increased around 15 May but then began to steadily decrease on 18 May.
Observers noted a significant decrease in activity on 19 May at the highest-elevation vent, and by 22 May was quiet; the main cone continued to spatter.
Source: Observatoire Volcanologique du Piton de la Fournaise (OVPF)