This...at 79km deep is what will wake this monster. It seems either the archipelago is angry or we're finally seeing reactions to the tremendous number of swarms Hierro has had recently. What I find very interesting as well is the severe punctuality of recordings from Tenerife. That chart is loaded with quakes...NONE of which IGN is reporting. And...from past experience Hierro quakes dont record on Tenerife monitors unless its over a 3.5 on Hierro. Tenerife is getting hammered...and the area between Tenerife and Grand Canary is the fuel station for the volcanic flows to the other islands. Something serious is brewing people.