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Volcanic eruptions are always caused by magma. This applies if the eruption is quiet or explosive, or whether the magma is felsic or mafic.
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Does a pyroclastic flow typically occurs during an quite eruption?
No. A "quiet" eruption will produce lava flows. Pyroclastic flows generally result from explosive eruptions.
Does felsic lava create violent or quiet eruptions?
Felsic lava, due to its high viscosity and generally high gas content tends to produce violent eruptions.
Do basalt plateaus form from explosive or quiet eruptions?
Quiet eruptions are a characteristic of basalt lava flows and plateaus.
What are two characteristics of quiet eruptions?
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.
What types of lava are produced by quiet eruptions?
Pahoehoe and another
Is mtn etna explosive or quiet and lava or pyroclastic flow?
Mount Etna has had both explosive and "quiet" eruptions and has produced lava flows, lava fountains, and pyroclastic flows.
Which types of eruptions produce pahoehoe lava?
Pahoehoe is a type of basaltic lava flow. The kind of eruption that causes pahoehoe is a quiet volcanic eruption.
What does viscosity have to do with eruptions?
The viscosity of magma or lava will determine whether or not the eruption is explosive or quiet. Higher viscosity magma can result in explosive eruptions. Lower viscosity magmas tend to flow more freely.
What kind of eruption produces pahoehoe and AA types of lava?
Quiet eruptions
Are volcanic eruptions in the ring of fire generally quiet or violent?
Volcanic eruptions in the Ring of Fire are generally violent, though not all eruptions are. Kilauea is an example of a volcano that has relatively quiet eruptions, but it is a deep mantle hotspot volcano not part of the ring of fire system and its lava is low in water content. In general the volcanoes in the Ring of Fire that have violent eruptions including Mt. St. Helens, Mt. Pinatubo, Krakatoa, and Mt. Mazama because their lava is high in water content which increases the possibility of steam explosions during an eruption.
Is a shield volcano quiet or loud?
No, they produce very explosive eruptions. They do not erupt much magma, instead exuding chunks of ash and semi-hardened igneous rock.
What eruptive style has a shield volcano?
Shield volcanoes tend to erupt non-explosively, mainly pouring out huge volumes of fluid lava. Hawaiian-type eruptions are rarely life threatening because the lava advances slowly enough to allow safe evacuation of people.
