A powerful illustration of the magnitude of the eruption is found at Haragosha Shrine, where you can just see the top crosebar of the shrine's arch, the rest submerged by hardened lava.
Much of the Shrine is submerged under lava from an eruption many years ago. 
mnli hypothesis: Much of the Shrine is submerged under lava from an eruption many years ago.  premise: A powerful illustration of the magnitude of the eruption is found at Haragosha Shrine, where you can just see the top crosebar of the shrine's arch, the rest submerged by hardened lava.