White Island volcano (New Zealand): small crater collapse, unrest continues
Fri, 25 Mar 2022, 18:3418:34 PM | BY: MARTIN
Last week, the GeoNet volcanologists did gas and observation flights over the volcano.
Aerial view of the active vents at the volcano depicting the areas of collapse (image: GeoNet)
The geysering activity continues to be active from a small grey pond located at the south flank of the 2019 Main Crater. Gas emissions and vent temperatures (290 °C) have decreased since the last measurements.
During the flights, a small collapse has been observed in one of the 2019 craters. The GeoNet observatory continues: "The formation of collapse craters at Whakaari/White Island was common in the past and was thought to be caused by either withdrawal of liquid beneath the crater or the removal of fine-grained ash during recent ash emissions. While this collapse activity poses no immediate hazard, it shows that the shallow crater environment remains dynamic and is changing in response to pressure variations beneath the active craters. This is a sign of continuing unrest."
Volcanic tremor continues at low-levels.
Volcanic Alert Level remains at level 2 and the Aviation Colour Code remains at Yellow.
Source: GeoNet New Zealand volcano activity update 25 March 2022
Wed, 23 Mar 2022, 19:37
Whakaari/White Island volcano (North Island, New Zealand) - Smithsonian / USGS Weekly Volcanic Activity Report for 16 March-22 March 2022 (Continuing Activity)
On 23 March GeoNet reported that volcanologists observed Whakaari/White Island and took gas measurements during overflights the week before. The active vent area had subsided, and small collapses in one of the 2019 craters had occurred in between the flights. During the second flight, scientists observed geysering from a small, gray-colored pool on the S side of the main crater. ... Read all
Thu, 24 Feb 2022, 02:25
White Island volcano (New Zealand): emitting ash emissions, geysering activity formed mud pit crater
On 17 February, the GeoNet volcanologists did an observation flight over the volcano. ... Read all