TFA hints at it, but even more interesting is that there was another huge volcanic explosion 6 years earlier that virtually no-one seemed to have noticed and we

TFA hints at it, but even more interesting is that there was another huge volcanic explosion 6 years earlier that virtually no-one seemed to have noticed and we still don't know where it was: http://discovermagazine.com/2015/july-aug/29-hunt-unknown-volcano http://discovermagazine.com/2015/july-aug/29-hunt-unknown-vo...