Latest news & updates from White Island
White Island volcano (New Zealand): Volcanic Alert Level raised to Level 2
Fri, 13 Nov 2020, 08:4608:46 AM |
GeoNet reported that an observations during the gas flight confirmed the presence of fine ash material in the plume. The fine particles originate from the main steam vent at the back of the crater lake. Initial analyses of the ash particles suggest that it is loose material from around the vent or underlying conduit being carried by the steam and gas emission.
Aerial view of White Island volcano with an ash and gas plume (image: @nzherald/twitter)
Some of the particles may be carried a few kilometres downwind but are unlikely to reach the mainland. The gas and steam plume may be noticed on the mainland as weak acid rain. While the gas output observed yesterday is higher than recent observations, other monitoring parameters do not show significant changes.
Observations from the flight show there is no substantial change in the location and size of active vents. The rainfall has formed a pool of water on the floor of the 1978/90 Crater, re-forming a shallow lakelet.
During the past week, a small sequence of earthquakes has been located close to the volcano and an increase of volcanic tremor has been recorded.
The main plausible triggers for a sudden eruption with little or no warning remain the collapse of unstable material in an active vent and the possible ingress of water underground onto the shallow magma body.
Source: GeoNet New Zealand volcano activity update 13 November 2020
Fri, 13 Nov 2020, 04:15
White Island Volcano Volcanic Ash Advisory: LOW LEVEL ASH EMISSIONS OBSERVED ON SATELLITE. to 5000 ft (1500 m)
Thu, 12 Nov 2020, 13:15
White Island Volcano Volcanic Ash Advisory: GNS CONFIRM NO ERUPTION BUT ASH IS PRESENT WITHIN STEAM PLUME. to 6000 ft (1800 m)
Thu, 12 Nov 2020, 08:15
GeoNet reported that a gas flight observation today confirmed an ash plume containing dark particles as can be seen in the webcam image. ... read all
Thu, 12 Nov 2020, 02:00
White Island Volcano Volcanic Ash Advisory: GNS CONFIRM NO ERUPTION BUT ASH IS PRESENT WITHIN STEAM PLUME to 6000 ft (1800 m)
Wed, 16 Sep 2020, 06:47
GeoNet reported that volcanologists did a three gas flight observations and one observation flight over the last 6 weeks. ... read all