Ruapehu volcano (North Island, New Zealand) - Smithsonian / USGS Weekly Volcanic Activity Report for 13 January-19 January 2021 (Continuing Activity)
GeoNet reported that volcanic tremor at Ruapehu declined to low levels on 29 December 2020, and remained low; volcanic gas emissions returned to background levels by the next day. Water chemistry had only slightly changed compared to data collected a few weeks prior. Although the temperature of the crater lake water remained high (40 degrees Celsius), the period of heightened unrest was over; the Volcanic Alert Level was lowered to 1 and the Aviation Color Code was lowered to Green on 11 January.
Wed, 13 Jan 2021, 06:0006:00 AM | BY: VN
From: Global Volcanism Program, 2021. Report on Ruapehu. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 13 January-19 January 2021. Smithsonian Institution and US Geological Survey.
Mon, 11 Jan 2021, 11:46
Ruapehu volcano (North Island, New Zealand): Volcanic Alert Level lowered to Level 1; activity has decreased
The activity of the volcano continues at fluctuating levels during the past few months and currently continues at low levels. ... Read all
Mon, 28 Dec 2020, 08:27
GeoNet reported that the crater lake temperature has decreased since the last update. On 21 December the temperature reached a maximum of 43 °C that subsequently declined to approx. 41 °C. A lake temperature peak of approximately 40-46 °C is common during the heating-cooling cycles. The lake temperature exceeded 40 °C on at least 7 occasions since 2007. According to lake temperature decrease, estimated energy into the crater lake has decreased from 400 MW to 200 MW. ... Read all