User blog comment:FairyRaven/Fairy Tail Chapter 363: The Stories That Demons Read, Review and Commentary/@comment-1153699-20131207173113/@comment-7418318-20131208133240

Did Laxus cause earthquakes, lightning-storms and massive floodwaves when he fought with all his might?

Because Makarov surely did when he went all-out against Jose (assuming it really was all-out).

Gildarts.... I'm not so sure about though, but I'd still estimate Makarov at least a bit over Gildarts in power, as long as his heart holds out.