White Island remains quiet since erupting briefly last week. A spike in sulphur dioxide gas emission which accompanied the eruption has passed and gas flux has returned to pre-eruption levels.
Seismic activity, which dropped after the eruption, remains low. The Volcanic Alert Level remains at 1 and the Aviation Colour Code at yellow.
Observations by GNS science volcanologists flying over White Island on Friday last week showed that the crater that erupted on August 20 had become drowned as water had risen to reform a small lake that previously existed in the area.
The area that erupted has been conspicuous for a lack of steaming since the eruption, particularly since the small lake reformed.
Volcanic gas flux measurements last Friday showed that, as well as sulphur dioxide, carbon dioxide and hydrogen sulphide were also at pre-eruption levels.
GNS says the processes that caused last week’s eruption were not yet fully understood. While the eruptive activity at White Island is currently at a low level, eruptions similar to those experienced last week or smaller eruptions seen more frequently over the past year are possible with no prior warning.
GNS Science continues to closely monitor the activity at White Island and other New Zealand volcanoes through the GeoNet project.
Kei te moe te motu a Whakaari whai muri i tona pahutanga i tera wiki. Hei ta nga matangata putaiao kua heke te kaha o te motu kei te moana nui a Toi i te wa i pahu ai a Whakaari, i rere atu tetahi waka rererangi ki Whakaari ki te whakamatau i nga ahuatanga i reira, me ta ratou whakatau, kua piki mai te wai i te rua o Whakaari, a kua mahea haere nga whakaaro a ratou te hunga i tae atu ki reira ki te tirotiro. No te rua tekau o tenei marama ka pahu te motu o Whakaari i te tekau karaka i te ata engari kare ano kia puta te whakatau he aha ai i pahu a Whakaari. E mohio pu ana nga matanga putaiao kei te kaha haere te motu ki te whakaohooho i a ia i nga tau tata kua taha atu nei, heoi ano kei te wahangu tonu ratou ki te whakapaaho i tetahi whakatupatotanga. Kua waihanga he kaupapa e GeoNet hei whakamatau i te kaha o Whakaari.