Erosion has draped many of the hillsides with cascades of brown rocks. These gradually make their way down the slope toward the sea, occasionally nudged along by the frequent earth tremors that occur here.
Erosiooni tõttu on paljudele mäenõlvadele varisenud pruune kive, mis lõpuks sagedaste maavärinate tõttu mööda mäenõlva merre veerevad.