Quiet volcanos are ones that explode slowly. Two characteristics of quiet eruptions are slow flowing lava and broad sheets of lava. The lava from a quiet eruption stays runny and flowing for a longer period of time than an explosive eruption does.
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Quiet eruptions are characterized by the slow release of gas and magma, resulting in relatively calm and gentle volcanic activity. They typically form shield volcanoes with gently sloping sides.
Quiet eruptions, also known as effusive eruptions, happen on the Hawaiian islands because the magma is low in viscosity and gas content. This allows the lava to flow more easily, resulting in less explosive activity. The gentle, steady flow of lava characterizes these quiet eruptions.
Shield volcanoes are typically quiet volcanoes, known for their gentle eruptions with slow-moving lava flows. These eruptions are often non-explosive compared to other types of volcanoes, such as stratovolcanoes.
The two main factors that control whether a volcano eruption will be explosive or quiet are the viscosity of the magma and the presence of dissolved gases. High viscosity magma (thick and sticky) and high gas content tend to result in explosive eruptions, whereas low viscosity magma (thin and runny) and low gas content lead to quiet eruptions.
The composition of the magma and the presence of trapped gases are two key factors that determine whether a volcanic eruption will be explosive or quiet. A high gas content and viscous magma can lead to explosive eruptions, while eruptions with low gas content and more fluid magma tend to be quieter.
A cinder cone volcano is typically characterized by relatively quiet volcanic activity, with eruptions consisting of gas-rich magma that produces small explosions and emits ash, cinders, and lava fragments. These eruptions are generally not as explosive or violent as those of stratovolcanoes or calderas.