Volcanic morphologies depend strongly on their chemistry and various other parameters such as viscosity, eruption type and geodynamic setting. The largest volcanic edifices are made by the huge shield volcanoes composing most of the islands of Hawaii or Galapagos, result of  hot-spot activity, or by large stratovolcanoes along active continental margins at convergent plate boundaries. Besides those large volcanic morphologies, there are also many other smaller forms, such as cinder, spatter, tuff and ash cones.