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It's because of the silica content. Some with high silica are explosive and violent. The ones with lower silica are gentle, and leak out. (might have it backwards. need to brush up on my volcano facts)

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14y ago

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Why are some volcanic eruptions gentle and others violent and why do scientist make a distinction?

Because it all depends on what type of volcano it is, if it is a shield volcano low and flat it's eruptions will be gentle. But if it is a cone volcano tall and steep it's eruptions will be very violent.


What shape is built up from numerous violent volcanic eruptions?

A volcanic cone or a volcanic mountain can be built up from numerous violent volcanic eruptions. These eruptions can result in layers of lava, ash, and volcanic rocks accumulating over time to form a distinctive cone-shaped landform.


Only the most violent volcanic eruption feature?

Only the most violent volcanic eruptions feature a pyroclastic flow.


Violent volcanic eruptions are common where magma has?

Violent volcanic eruptions are common where magma has a high gas content and viscosity. The pressure from trapped gases builds until it explosively releases, causing explosive eruptions like Plinian or Pelean eruptions. These eruptions often result in ash plumes, pyroclastic flows, and lahars.


What do only the most violent volcanic eruptions feature?

The most violent volcanic eruptions are found in destructive/convergent plate boundaries. 80% of the world's active volcanoes are found occur along destructive boundaries. Acid-lava and composite volcanoes also cause the most violent eruptions as the lava is viscous and the opening of the volcano is sometimes blocked by hardened lava, causing a huge massive explosion during the eruption.


These volcanic eruption types is the least violent?

Which of these volcanic eruption types is the least violent? B. Hawaiian A. Pelean B. Hawaiian C. Strombolian D. Plinian


Can scientists predict volcanic eruptions?

Yes, scientists can predict volcanic eruptions, but only to a certain extent of accuracy. One method is to use earthquakes. Earthquakes usually increase and become more violent before a volcanic eruption


The most violent volcanic activity is associated with?

The most violent volcanic activity is associated with stratovolcanoes, which are characterized by their steep-sided cones and explosive eruptions. These eruptions can release large volumes of ash, gas, and lava at high speeds, posing a significant hazard to surrounding areas. Examples of stratovolcanoes known for violent eruptions include Mount St. Helens in the United States and Mount Vesuvius in Italy.


Moderate to violent eruptions throwing volcanic ash cinders and lava high in to the air?

Volcanic eruptions can vary in intensity from moderate to violent, with the latter throwing volcanic ash, cinders, and lava high into the air. These explosive eruptions are often caused by a build-up of pressure from gases within the magma chamber, resulting in the forceful expulsion of volcanic materials. The severity of the eruption depends on factors such as the type of volcano and the composition of the magma.


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.


What are the volcanic type eruptions least to greatest?

Volcanic eruptions can be categorized from least to greatest intensity as follows: Hawaiian eruptions are typically gentle, characterized by flowing lava. Next, Strombolian eruptions involve sporadic bursts of lava and gas. Following that are Vulcanian eruptions, which are more explosive, ejecting ash and larger volcanic rocks. Finally, Plinian eruptions are the most violent, producing massive columns of ash and pyroclastic flows.


What type of magma causes violent erpuptions?

Highly viscous felsic magma causes the most violent volcanic eruptions.