For an effusive volcanic activity how far a andesitic lava can flow? What is the speed?

Eruption amout 0.2 cubic km amount with 25 degree slope.

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    $\begingroup$ you need to give more information like the volume per hr and the angle of slope. $\endgroup$ – trond hansen Apr 12 '19 at 5:20
  • $\begingroup$ I don't know the volume per hr. Eruption amout 0.2 cubic km amount with 25 degree. $\endgroup$ – Muharrem Yavuz Apr 12 '19 at 20:26

Andesitic lava is viscous, compared to basaltic lava. Andesitic lava flows at a rate of a few kilometers per hour, whereas basaltic lava can flow up to 10 km/h. Because of their viscosity, andesitic lavas "rarely extend beyound 8 km from their vents".

Viscosity of andesite lava and its implications for possible drain-back processes in the 2011 eruption of the Shinmoedake volcano, Japan

Pulsatory andesite lava flow at Bagana Volcano

Volcanoes, Magma, and Volcanic Eruptions - Tulane University

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  • $\begingroup$ Would you please give your references? tThen i will able to read more from there. $\endgroup$ – Muharrem Yavuz Apr 13 '19 at 21:01
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    $\begingroup$ @MuharremYavuz: Click on the blue underlined link in the answer $\endgroup$ – Fred Apr 14 '19 at 3:07

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