Volcano Related Hazards

These are observable facts that are arising due to volcanic activity such as eruption

• Volcanic Hazards

• Earthquake Hazards

• Geological Hazards

• Fire Hazards

It is a massive collapse of a volcano, usually triggered by an earthquake or volcanic eruption.

• Lava flow

• Tsunami

• Volcanic Landslide

• Volcanic gases

It contains a highly-density mix of hot lava blocks, pumice, ash and volcanic gases. They move at very high speed down volcanic slopes, typical following valleys.

• Lava flow

• Tsunami

• Volcanic Landslide

• Pyroclastic flow

They are rock fragments that are ejected from volcano’s mouth that are comparable to cannonballs.

• Lava flow

• Tsunami

• Ballistic projectile

• Pyroclastic flow

This hazard happens when sea waves or wave trains are generated by sudden displacement of water

• Lava flow

• Tsunami

• Ballistic projectile

• Pyroclastic flow

This hazards takes place when magma contains dissolve gases which provides the driving force that causes most volcanic eruptions.

• Lava flow

• Tsunami

• Volcanic gases

• Pyroclastic flow

They are streams of molten rocks that are poured or oozed from an erupting vent.

• Lava flow

• Tsunami

• Volcanic gases

• Pyroclastic flow

They are minute volcanic particles such as pulverized rock, minerals and silicon which has fine to coarse grain.

• Lava flow

• Ash fall

• Volcanic gases

• Pyroclastic flow

Which of the following is/are NOT a hazard of volcanic eruption?

• Displacement

• Tephra fall

• Flood

• Liquifaction

As of February 2021, how many are the active volcanoes in the Philippines?