Ulawun in Papua, New Guinea has been nearly constantly active
for the past decade. Volanologist estimate that this single volcano
is responsible for about 2% of the sulfur dioxide released into the
atmosphere.
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YES IT IS VERY ACTIVE!!! the last eruption was this last year
2010 on feburary 14-15...for more information look up ulawun on
google and go tothe link with the website called john search...the
wbsite is very good