Ruapehu steam show
A steam cloud that appeared above Ruapehu last Thursday evening was from hydrothermal activity in the crater. Between 9.10pm and 9.30pm on 6 February several small steam plumes reach 2-300m above the crater, reports Institute of Geological and Nuclear Sciences staff at Wairakei. Vulcanologist Brian Scott said seismic records were examined at the time and showed no volcanic earthquakes were present on the records. This indicates that the events are hydrothermal in origin. That is, steam rather than magma was the driving force.
Aerial observations Friday morning by Mountain Air established that a very fine coating of ash is present about the summit crater, extending from Paretetaitonga towards Tahurangi. Activity at Ruapehu volcano continues at a low level, explained IGNS, with steam plumes being observed over the volcano for some weeks now, when conditions have been suitable. This level of activity, if maintained, is insufficient to justify a change in the alert level for the volcano and so the Alert Level remains at 1 , said Mr Scott.
Permanent link to this item
Hononga pūmau ki tēnei tūemi
https://paperspast.natlib.govt.nz/newspapers/RUBUL19970211.2.19
Bibliographic details
Ngā taipitopito pukapuka
Ruapehu Bulletin, Volume 14, Issue 673, 11 February 1997, Page 6
Word count
Tapeke kupu
170Ruapehu steam show Ruapehu Bulletin, Volume 14, Issue 673, 11 February 1997, Page 6
Using this item
Te whakamahi i tēnei tūemi
Ruapehu Media Ltd is the copyright owner for the Ruapehu Bulletin. You can reproduce in-copyright material from this newspaper for non-commercial use under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International licence (CC BY-NC-SA 4.0). This newspaper is not available for commercial use without the consent of Ruapehu Media Ltd. For advice on reproduction of out-of-copyright material from this newspaper, please refer to the Copyright guide.
Log in