Iruka ry'ikirunga ryatumye ikirwa cya Saint Vincent cyo mu birwa bya Caraïbes gitwikirwa n'ivu n'umwotsi, abantu babarirwa mu bihumbi bata ingo zabo. Ikirunga cya La Soufrière cyari kimaze imyaka ...
Ikirunga White Island cyo mu gihugu cya New Zealand kiri kurushaho kugaragaza ko gishobora kongera kuruka, bikaba byatumye ibikorwa byo gushakisha abari bahari ub wo cyarukaga biba bihagaze.
Ubwongereza bwafunze ikirere cyabwo cyose cyeretse ku ngendo z'ubutabazi kugeza kuwagatanu mugitondo kubera ubwoba bw'ingorane zishobora guterwa n'iryo vu. Ibihugu bya Ireland, Denmark, Norway, Sweden ...