December 8, 2006 2:15am CST
How hot is molten lava as it erupts from a volcano?
8 Dec 06
the temperature of Hawaiian lavas.When they erupt they are probably around 1170 to 1175 degrees centigrade. That converts to about 2140 degrees farenheit The lava at other volcanoes, especially strato-volcanoes like Mount St. Helens, is a good deal cooler, perhaps 100-200 centigrade degrees cooler. That is the main reason why it is so viscous compared to the Hawaiian lavas that are so fluid.