Fluid emissions of volcanic and non volcanic origin and mud-volcanoes on seafloors, mapped by various national and regional mapping projects and recovered in the literature. Polygons represent areas larger than 10 hectares. (for smaller areas, see fluid emissions points layer) Note: blank areas do not necessarily correspond to no occurrence.
Data are received from EMODnet Geology partners in different formats (shapefiles, geodatabase). Data are merged into a single europewide layer with an attribute table