Earthtremors.
There has never been an instance where a volcanic eruption has been prevented from occurring by human means.
No
false
Japan
1635
A seismograph.
A volcanic eruption starts with the build up of pressure in the magma chamber. A bulge in the crater may indicate a impending eruption. Earthquakes may also precede an eruption.
Before a volcanic eruption there may be numerous tremors and quakes. These can be measured on a meter, and depending on how big the tremors&quakes are will predict how big the eruption will be.
Yes. In fact, earthquakes and tremors usually precede the eruption of a volcano and are caused by the volcanic activity and pressure building up beneath the ground.
A volcanic explosion is an eruption.
This may be a volcanic vent, crater or caldera depending on the specific volcanic event that formed the hole!
it is the upperpart of the volcanic chimney during an eruption it is the upperpart of the volcanic chimney during an eruption
In most cases, no. However, there is evidence that, on a few occasions, earthquakes appear to have triggered eruptions, most likely by disturbing the magma chamber beneath the volcano. Earthquakes often precede a volcanic eruption, be these are not the cause of the eruption, but are rather a result of the movement of magma that leads to an eruption.
volcanic eruption
is a volcanic eruption part of the rock cycle
is a volcanic eruption part of the rock cycle
The worst volcanic eruption in history is believed to be the eruption of Mount Tambora in Indonesia in 1815.