I think it is all to do with the pressure forming underneath the earth's crust in the mantle and magma chamber hope this helps!
There are three primary factors that determines volcanic eruptions, and whether they are violent or not. The volcanoes composition, silica content, its temperature, and how much dissolved gas is contained determines the magma's viscosity.
a
Volcano
the time of day
Eyjafjallajokull is on 2 plate boundaries, and these boundaries are moving apart, so plate movements have caused this Icelandic volcano to erupt increasingly.
yes it would be active but rarely errupt but it would still be active
in 1580
a
yes
Probably in a couple of million years since it takes a while for a volcano to errupt after it has already. I wouldn't worry! ;D
I think it is all to do with the pressure forming underneath the earth's crust in the mantle and magma chamber hope this helps!
August, 2005
active
yes, it actually could
Volcano
the time of day
Earthquakes can cause volcanos to errupt by the plates moving and crashing into one other which creates an earthquake(when plates collide it causs an earthquake) so the force of the earthquake causes a volcano erruption.
it could errupt and you burn to death