Steve Sherburn

Volcanic Activity Bulletin TON-2012/21 - Tongariro Volcano

Published: Thu Aug 16 2012 7:10 AM
Volcanic Activity Bulletin
Volcanic Activity BulletinTON-2012/21
Thu Aug 16 2012 7:10 AM; Tongariro Volcano
Volcanic Alert Level remains at 2
Aviation Colour Code remains at Yellow

Seismic activity at Tongariro remained low overnight. Poor weather continues to prevent any views of the mountain, but volcanic activity is thought to also have been low.

Yesterday several reports describing gas smells were received, particularly from the Manawatu region. This is attributed to passive degassing of magma beneath the surface of Tongariro following last weeks eruption. This is a common observation at volcanoes.

Predicted ashfall area for White Island

Predicted ashfall area for White Island

Predicted ashfall area for White Island

The weather today is likely to prevent any fieldwork at Tongariro. Once the weather improves additional gas sampling flights and surface gas sampling will be attempted. Data will also be collected from portable seismographs on Tongariro.

An ashfall prediction plot is attached to this bulletin should a future eruption occur.

Steven Sherburn Duty Volcanologist