About concluding as Earthquake of opening type phenomens,and another region discoveries

You know to some literature expressions about concluding as Earthquake of every opening type phenomena ...Where,A example is thus expressing;

I took via Mr.Duyck to catched a photo(constrained as 11.2019) by Mr.Bakanov...

You will evaluate that a Volcanism as quite important..Two possibilities by analysis about source mechanism of this event  are subject.But,requires to concluding with a seismic event of phenomena for Cocosplate boundary.So,you will evaluate that a Earthquake producing condition  by plate boundary...Thus,I consider to other point;

Yes...You are right!!!There are not any Seismic events for region.Thus,I express that  some opening type phenomens are not reflecting a event as Earthquake.  

As conclusion of my analysis, Important locations that a magnitude event for November;

Indicators are implying  to boundary of Futuna Plate 

Other location(where,I am not observing a seismic event);

Note.Really quite weird!!!information into dayscale of this volcanism event is not subject(news researching by Kiril alphabet also realised).