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Increased activity reported at Gaua 7 October 2009

Posted by admin in activity reports, Gaua, Pacific, Vanuatu.
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The spate of restlessness at Gaua volcano in Vanuatu is evidently continuing. Radio New Zealand International reports that more activity has been observed by the volcanological team sent to Gaua to assess the situation. One of the team reports that very late on 5 October ‘an increase of a high volcanic high frequency’ was observed, which is presumably a reference to high frequency volcanic tremor.

The current alert level at Gaua is one, on a scale of one (lowest) to five (highest). The volcano is being closely monitored, and if there are further increases in activity the alert level will be increased to two, say the volcanologists.

Close eye kept on Vanuatu volcano that’s spitting ash – Radio New Zealand International, 6 October 2009

Global Volcanism Program: Gaua – summary information for Gaua (0507-02=)
Vanuatu volcanoes and volcanics – information from the USGS Cascades Volcano Observatory

The Volcanism Blog



1. Ron de Haan - 8 October 2009

Have a look at http://www.iris.edu/seismon/
Two substantial quakes (7.8 and 7.1) hit the Island.

2. Welsh_Chris - 8 October 2009

Is there any chance that the massive earthquakes could trigger an eruption?

3. admin - 8 October 2009

There’s always a chance, I suppose, but I think it’s very unlikely. The nearest of the quakes was ~200 km from Gaua, and it’s hard to see how the local magmatic systems could be affected in any significant way. These were deep tectonic quakes with no volcanic connections.

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