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Ruapehu volcano sat by (c) Google Earth View
Ruapehu volcano sat by (c) Google Earth View
Ruapehu volcano
Stratovolcano 2797 m / 9,176 ft
North Island, New Zealand, -39.28°S / 175.57°E
Current status: normal or dormant (1 out of 5)
Ruapehu webcams / live data | Reports
Ruapehu volcano books | Tours
Ruapehu volcano eruptions:

Typical eruption style:
Mildly explosive, formation of lahars
Last earthquakes nearby
Latest satellite images

Sentinel hub | Landsat 8
 

News and activity reports about Ruapehu volcano:

Ruapehu volcano (North Island, New Zealand) activity update

Wednesday Nov 07, 2012 08:07 AM | BY: T

No unusual activity has been seen recently at Ruhapehu volcano. This is the latest update from GeoNet:
"
The Crater Lake was last hot in December 2011/January 2012 when temperatures rose to over 35 °C. Since then the lake has cooled, reaching about 16 °C in May and has fluctuated between 18 and 24 °C since then. When visited last week the temperature was 19.5 °C. The lake is a blue-green colour with weak convection near the centre.

Ruapehu volcano often has some form of seismic activity associated with it. For the last month weak volcanic tremor has been present on the records and more recently several small earthquakes have occurred under or near the volcano. The largest has been about magnitude 2.

Recently we have also completed a gas flight at Ruapehu. We can detect sulphur dioxide (SO2), carbon dioxide (CO2) and hydrogen sulphide (H2S). On 26 October the gas flux was: sulphur dioxide 63 tonnes per day and carbon dioxide flux 908 tonnes per day."
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Links / Sources:
Previous news
Thursday, Mar 10, 2011
Ruapehu volcano who last erupted in 1995-96 might be heading towards a new eruptive cycle. The temperature of the crater lake has increased to 40C and other indicators such as seismicity and deformation all point towards a gradual reawakening. [more]
Saturday, Jun 21, 2008
Elevated gas output and high lake temperatures continue, while volcanic tremor has declined. Unrest continues at Ruapehu and it remains unclear if this is a sign of further eruptions. The volcano last erupted on September 25 2007. The Alert Level remains at Level 1. ... [more]
Thursday, Oct 18, 2007
The Alert Level at Ruapehu was lowered to 1 (on a scale of 0-5) on 9 October because no further eruptions have occurred since the activity on 25 September.[more]
Sunday, Mar 18, 2007

Sunday morning at 10:47 am local time, a section of Ruapehu volcano's crater walls collapsed under the pressure of the crater lake. The sudden draining of the lake caused a devastating lahar that travelled down from its altitude at 2500 m to sea level. Fortunately, the flash flood of mud drained through a river channel and no people were injured or killed. Authorities closed roads and the nation's main trunk rail track near the southern base of the mountain on New Zealand's North Island.
A similar event happened in 1953 killed when a lahar killed 151 people when it washed away a rail bridge, plunging a passenger train into the raging torrent of mud.

[more]

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