Right: Grey ash clouds rise into the atmosphere over St. Vincent (image: University of West Indies Seismic Research Center / twitter). Meanwhile across the globe in St. Vincent ash rises into the sky in a large plume from the La Soufrière volcano. Both eruptions were preceded by numerous earthquakes which warned volcanologists that magma was coming toward the surface. However, these two eruptions have very different behaviors and thus very different hazards (though both do have hazards).On St. Vincent 16,000 people have been evacuated from their homes meanwhile hundreds gather to watch the fissures in Iceland. The lava is much more viscous so it does not form ropey lava flows or spread far from the event.