Working out the latitude of the Sogeri volcano if?

Question

Papua New Guinea-Australia have moved northwards at a rate of 70mm per year for the last 5Ma, what latitude was the Sogeri Volcano at when it erupted. (One degree of latitude is 110km. Currently we are at a latitude of 9.5 degrees South).

Answer 1

Searching the web returned no results for the Sorgeri Volcano.  Is it known by another name?  When did it erupt?

http://en.wikipedia.org/wiki/List_of_vol...