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What types of lava will most likely lead to a volcanic eruption of an effusive nature?
Shield volcanoes have effusive eruptions. Effusive eruptions are a volcanic phenomenon; in some ways the opposite of explosive eruptions. An effusive eruption is characterized by an outpouring of low viscosity lava which has a fairly low volatile content. Usually, shield volcanoes have effusive eruptions.
Show me all thirty-nine volcanic eruptions of mount vesuvius?
Principal eruptions list 79 explosive Ash-fall, pomices and lahars472 effusive-explosive Lava flow and lahars to north-western flank51226 February 685 effusive Imposing lava flow787 effusive-explosive Lahars and imposing lava flow968 Lava flow to sea27 January 1037 Lava flow to sea29 May 1139 explosive Ash-fall1500 explosive Ash-fall16 December 1631 effusive-explosive Cone collapse; lava flow to sea3 July 1660 explosive Ash-fall to north-east flank13 April 1694 effusive Lava toward Torre del Greco25 May 1698 effusive-explosive Damage by ash-fall to south-east flank28 July 1707 effusive-explosive20 May 1737 effusive-explosive A lava flow invades T. del Greco; ash-fall and lahars23 December 1760 effusive-explosive Opening of lateral vents on southern flank (150 m asl)19 October 1767 effusive-explosive Two lava flows toward T.Annunziata. and S. Giorgio a Cremano8 August 1779 explosive Ash and bombs over Ottaviano15 June 1794 effusive-explosive Opening of lateral vents on south-western flank (470 m asl)22 October 1822 effusive-explosive Two lava flows toward T. del Greco and Boscotrecase23 August 1834 effusive-explosive A lava flow toward Poggiomarino6 February 1850 effusive-explosive1 May 1855 effusive A lava flow invades Massa and S.Sebastiano8 December 1861 effusive-explosive Opening of lateral vents on south-western flank (290 m asl)15 November 1868 effusive24 April 1872 effusive-explosive A lava flow invades Massa and S.Sebastiano4 April 1906 effusive-explosive A lava flow toward T.Annunziata, strong explosive activity3 June 1929 effusive-explosive A lava flow toward Terzigno18 March 1944 effusive-explosive A lava flow invades Massa and S.Sebastianosource:http://www.vesuvioinrete.it/e_storia.htm
What is the viscosity of effusive eruption?
The viscosity of lava during an effusive eruption is generally low, allowing it to flow easily and spread over large areas. This low viscosity is typically associated with basaltic lava, which has a high temperature and low silica content. As a result, effusive eruptions tend to produce gentle lava flows rather than explosive activity. The fluid nature of the lava contributes to the formation of broad, shield volcanoes.
What is a river of lava called?
A river of lava is called a lava flow. It is a mass of flowing molten rock that moves downhill from a volcano during an eruption.
How does effusive eruption cause damage?
Effusive eruptions typically involve the slow, steady flow of lava, which can cause damage by destroying infrastructure, homes, and vegetation in its path. The heat and fluidity of the lava make it difficult to divert or stop, creating a risk to any nearby areas in the eruption's vicinity. Effusive eruptions can also generate lava fountains, ash clouds, and gas emissions, which can impact air quality and pose health risks to nearby populations.
Does Hawaii experience effusive or explosive eruptions?
Occasionally, yes. Most of Kilauea's eruptions are effusive, however.
What kind of lava does Mount Etna have?
stratovolcano
Features of eruptions in etna volcano?
Eruptions at Mount Etna can be explosive or effusive, with lava flows being the most common form of eruption. Explosive eruptions can generate ash plumes, pyroclastic flows, and lahars. Effusive eruptions produce lava flows that can flow for long distances and can pose a hazard to nearby communities.
What type of lava is considered intermediate composition?
Andesitic lava is considered intermediate in composition. It has moderate silica content and viscosity, resulting in eruptions that produce both effusive and explosive activity.
What do lava flows made of pahoehoe and AA indicate about the type of volcanic eruption that occured?
They indicate that an eruption is effusive rather than explosive.
What do lava flows made of pahoehoe and AA indicate about the type of volcanic eruption the occured?
They indicate that an eruption is effusive rather than explosive.
What kind of eruption is hot lava?
Hot lava comes from effusive eruptions, where magma is relatively low in silica and flows easily out of the volcano. This type of eruption typically results in slow-moving lava flows that can cover large areas.
