According to GeoNet water filled in the vents of Whakaari/White Island?s 2019 Primary Crater based on 18 May webcam views. During an observation overflight on 27 May scientists confirmed the new lakelet and noted that several active steam and gas vents were under water. Thermal infrared measurements indicated that temperatures had cooled significantly. Gas emissions had not notably changed over the previous few months. A persistent gas-and-steam plume likely produced acid rain on the island. A period of low-energy volcanic tremor began at around 0400 on 1 June and lasted for two hours. Activity rapidly returned to low levels afterwards. Overall, seismicity was at background levels. The Volcanic Alert Level remained at 1 and the Aviation Color Code remained at Green.
Syndicated from Smithsonian / USGS Weekly Volcanic Activity Report