GEOLOGY

Detailed explanation-1: -Tectonic hazards are threats caused by the movement of tectonic plates that have the potential to cause damage to life, property, the environment, human activity and/or the economy. Tectonic hazards include earthquakes and volcanic activity.

Detailed explanation-2: -Tectonic hazards include earthquakes and volcanic eruptions, as well as secondary hazards such as tsunamis. These represent a significant risk in some parts of the world in terms of loss of life, livelihoods and economic impact.

Detailed explanation-3: -Tectonic hazards occur when the Earth’s crust moves. For example, when the plates move, friction can cause them to become stuck. Tension builds until the plates release, which leads to an earthquake.

Detailed explanation-4: -Secondary hazards caused by earthquakes include tsunamis, liquefaction and landslides. Secondary hazards induced by volcanic activity include tsunamis, pyroclastic flow, lahars and jökulhlaups.

Detailed explanation-5: -Plates, Motion, Faults, Energy Release The Earth’s crust (the outer layer of the planet) is made up of several pieces called tectonic plates and most earthquakes occur along their edges. The plates under the oceans are called oceanic plates.