Hazards of a Volcano
There are many hazards volcanoes can pose. Even those not living that close to the volcano may be harmed by its eruptions. All the melted snow, mud, and rock from the eruption can create dangerous landslides and avalanches. They can bury towns and kill thousands of people nearby. Volcanic ash can cause complications for many people. Towns, crops, and engines can be damaged because of volcanic ash released in an eruption. Towns buried, roofs collapsed, crops ruined, car and jet engines stalled and clogged.
Quiet Eruptions
The main worry during quiet eruptions is the lava flow. Since the silica content is low in a quiet explosion's magma, the lava runs easily and can travel far from the vent it erupted from. Anything in the way of the lava flow is set on fire and buried.
Explosive Eruptions
Explosive eruptions can cause many problems with volcanic ash, cinders, bombs, and clouds of scorching volcanic gas. Since the lava in explosive eruptions is thick and sticky, it does not flow does not run too far.
Quiet Eruptions
The main worry during quiet eruptions is the lava flow. Since the silica content is low in a quiet explosion's magma, the lava runs easily and can travel far from the vent it erupted from. Anything in the way of the lava flow is set on fire and buried.
Explosive Eruptions
Explosive eruptions can cause many problems with volcanic ash, cinders, bombs, and clouds of scorching volcanic gas. Since the lava in explosive eruptions is thick and sticky, it does not flow does not run too far.
Monitoring Volcanoes
As read above, active volcanoes pose a very large threat to people living near them. Since there are disastrous hazards that come as a result of an erupting volcano, geologists want to monitor them as best as possible in a hope to predict when an earthquake will explode. They use similar devices to monitor volcanoes as earthquakes such as tiltmeters and laser-ranging devices. They use methods that monitor the temperature of the water nearby, ground movement, the local magnetic field, gases, and the crater's water level to predict the time of the volcano's eruption. Earthquakes that are caused by the transition of magma between the chamber and pipe are also recorded.