Mount Etna, Europe’s highest and most active volcano, erupted on Monday and caused several minor earthquakes in the region. Italy's national institute for geophysics and vulcanology (INGV) counted more than 130 seismic shocks in the zone, with the strongest reaching a magnitude of 4 on the Richter scale. This also prompted Sicily’s Catania airport on Italy’s eastern coast to be shut down because of poor visibilty. The volcanic eruptions spewed huge columns of ash into the sky. There were no reports of any injuries.