shield volcanoes are volcanoes with broad slopes, and have very large bases. the slope inclination of a shield volcano is very low. in fact, it is lower than ten degrees. they are built mainly of fluid magma flows, and The lava that shield volcanoes produce is highly runny. shield volcanoes are mainly composed of basalt, and are made when there are high viscosity magma flows. When a shield volcano erupts, there is usually very little ash, Sometimes not even any ash. Shield volcanoes will form on hot spots, and divergent plate boundaries. Lava flows are the most common hazards that shield volcanoes produce. The Hawaiian islands are actually shield volcanoes.