On 14 April 2010 the Icelandic volcano, Eyjafjallajökull, erupted resulting in a volcanic ash cloud across European airspace. The ash cloud caused a moratorium on flying and concerns over health effects to vulnerable populations. Not even a year since the volcanic ash cloud; on 11 March 2011 a massive 9.0-magnitude earthquake occurred near the northeastern coast of Japan, creating extremely destructive tsunami waves which hit Japan just minutes after the earthquake, triggering evacuations and warnings across the Pacific Ocean.
Chakraborty, S and Creutzfeldt-Banda, N.
May 11, 2011