Volcano cliffs can affect monitoring data, study finds
(WorldNews Europe)

New research led by the University of East Anglia (UEA) and co-authored by the University of Bristol reveals that sharp variations of the surface of volcanoes can affect data collected by monitoring equipment. The surfaces of many volcanoes feature steep walls or cliffs. These are often part of calderas - large craters left by a previous collapse - but can also be caused by the volcano `rifting` - or splitting - or sector collapse, when part of the side of the volcano slides away. However, the effect of these variations in landscape has not previously been considered in studies of surface deformation in volcanic regions, even though they are a common feature. In...