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Ruapehu volcano (North Island, New Zealand) - Smithsonian / USGS Weekly Volcanic Activity Report for 16 December-22 December 2020 (New Activity / Unrest)

Mi, 16. Dez 2020, 06:00
06:00 AM | VON: VN
GeoNet reported a warming trend of the crater lake water at Ruapehu, with a high temperature of 43 degrees Celsius. During an overflight to measure gas emissions the previous week, scientists observed that the lake was a uniform gray color (suggesting it is well mixed) and some water overflow at the lake's outlet. Gas output had increased in response to the heating cycle; the amounts of carbon dioxide (CO2) and sulfur gases (SO2 and H2S) in the plume were the largest measured in the past two decades.
Short-lived pulses of volcanic tremor were coincident with gas emissions. The Volcanic Alert Level was raised to 2 and the Aviation Color Code was raised to Yellow on 21 December.

Source: GeoNet
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From: Global Volcanism Program, 2020. Report on Ruapehu. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 16 December-22 December 2020. Smithsonian Institution and US Geological Survey.

Vorherige Nachrichten

Mi, 4. Nov 2020, 09:36

Ruapehu volcano (North Island, New Zealand): crater lake temperature is rising again

Ruapehu volcano today (image: GeoNet webcam)
GeoNet reported that the activity at Crater Lake (Te Wai ā-moe) is characterized by a heating-cooling cycle. In late September the lake had cooled to around 12 °C marking the low point of the cycle. Since mid-October the lake has been warming slowly and has now reached 22 °C. ... Read all
Do, 22. Okt 2020, 07:54

Ruapehu volcano (North Island, New Zealand): gas flight observations; lake temperature is low

GeoNet observatory reported that the activity at Crater Lake (Te Wai ā-moe) is often dominated by a heating-cooling cycle. In the most recent cycle, the lake temperature reached a high of 41°C in April and then cooled steadily to 12 °C by late September. Over the last two weeks, the lake has warmed slightly to 15 °C, which is a normal observation. ... Read all
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Ruapehu volcano sat by (c) Google Earth View
Ruapehu volcano sat by (c) Google Earth View
Ruapehu Vulkan
Stratovolcano 2797 m / 9,176 ft
Nordinsel (Neuseeland), -39.28°S / 175.57°E
Aktueller Status: normal / ruhend (1 von 5) Ausbrüche des Ruapehu:

Typische Aktivität
Mildly explosive, formation of lahars
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