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Scientists plan to keep a close eye on Mt Ruapehu’s warming crater lake after the volcanic alert level was raised to two on Monday. When weather allows, they plan to make a plume gas measuring flight and collect a lake water sample via helicopter but both measures were dependent on an updated hazard assessment, duty volcanologist Michael Rosenberg told Stuff on Thursday. GeoNet monitors Mt Ruapehu via a network of seismic and acoustic sensors, satellite position receivers, and sensors in the lake, as well as physical visits to collect water samples, and flights to measure volcanic gases ...

3 months ago Crater Lake (Te Wai ā-moe) continues heating and is now 43 °C. The heating has been accompanied by bursts of volcanic tremor and a marked increase in the amount of gas passing through the crater lake.  The volcanic alert level has been raised to Level 2 and the Aviation Colour code changed to Yellow (Source: GeoNat). The Crater Lake (Te Wai ā-moe) temperature has been rising and is now 43ºC. During a gas flight last week, the lake was observed to be a uniform grey colour which shows it is well-mixed. There is some flow over the outlet. The gas...

Mt Ruapehu moved up to volcanic alert level 2 GeoNet has issued a Volcanic Alert Bulletin for Mt Ruapehu, as the temperature in the crater lake continues to rise. Scientists have raised the alert level to two which indicates moderate volcanic unrest. The crater lake continues to heat and is now 43C, accompanied by bursts of volcanic tremor and a marked increase in the amount of gas through the crater lake. GeoNet in a statement said the combination of the increased lake temperature, volcanic tremor and gas output have led to the alert level change. "Mt Ruapehu is an active volcano and has the...

Mt Ruapehu moved up to volcanic alert level 2 Monday, December 21, 2020 Radio New Zealand GeoNet has issued a Volcanic Alert Bulletin for Mt Ruapehu, as the temperature in the crater lake continues to rise. Scientists have raised the alert level to two which indicates moderate volcanic unrest. The crater lake continues to heat and is now 43C, accompanied by bursts of volcanic tremor and a marked increase in the amount of gas through the crater lake. GeoNet in a statement said the combination of the increased lake temperature, volcanic tremor and gas output have led to the aler...

Photo from RNZ News from GeoNet The temperature of the crater lake (Te Wai ā-moe) at Mt Ruapehu has decreased from 43 to 41 °C during the past week. The level of volcanic tremor continues to be moderate to strong and a small number of shallow volcanic earthquakes have been recorded. While the crater lake may have stopped heating, volcanic activity at Mt Ruapehu remains elevated. The Volcanic Alert Level remains at Level 2 and the Aviation Colour Code remains at Yellow. Since our last update, Ruapehu’s Crater Lake (Te Wai ā-moe) temperature has decreased slightly. The temperature reached ...