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Vanuatu: Gaua volcano alert raised 16 October 2009

Posted by admin in activity reports, eruptions, Gaua, Pacific, Vanuatu.
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The Vanuatu Geohazards Observatory issued a new bulletin on 13 October reporting the ongoing activity of Gaua volcano. The alert level has been raised to level 2 which means ‘that this volcano is going through a minor eruption’:

After the assessment of the geohazards team on Gaua volcano from 3-7 October 2009, it is confirmed that Mont Garet volcano is going through an eruptive phase starting from the 27th of September 2009. Seismic records of the seismic station installed on Gaua show that many explosions occurred on gaua volcano … Volcanic gas flux measurements on October 3rd show that 3000 tons of sulfuric dioxide is released from this volcano each day, this means that a significant quantity of magma is degassing from gaua volcano.

Monitoring continues; more news here as it comes in.

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

The Volcanism Blog

Comments

1. SHIRAKAWA Akira - 16 October 2009

I noticed just now that Gaua volcano is right where the recent Vanuatu earthquake swarm (with multiple 7.0+ magnitude earthquakes) occurred. Could this rise of activity be directly caused by that?

2. admin - 16 October 2009

I think it’s unlikely there’s a direct connection (but I’d be interested to know what better-informed people think). There’s already been some discussion of this in the comment threads of earlier Gaua posts here.


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