Natural Disasters are extreme, sudden events caused by the environment that cause huge loss of life and property. Some of the examples of natural disasters are earthquake, volcano, landslide, flood, etc. The natural disasters like flood, landslide, soil erosion, etc occur frequently in Nepal. Many lives and property are damaged due to this. In this note, we discuss the earthquake and volcano with their causes, effects and safety measures.
Earthquake is the sudden movement of earth's surface caused due to the sudden release of energy in the earth's surface. It is the vibration of the earth's surface. The vibration may be left and right or up and down. There is a high possibility of the earthquake in Nepal. Nepal lies in the active earthquake region. Currently, a devasting earthquake of 7.9 Richter scale magnitude hit Nepal in 2015 AD. More than 10, 000 people died during this earthquake. Nepal was also hit by the devastating earthquake in 1990 BS and 2045 BS. The earthquake of 1990 BS killed 8519 people and earthquake of 2045 BS killed 721 people and damaged about 65, 000 houses and buildings.
Causes of Earthquake
Effects of Earthquake
Preventive and SafetyMeasures of Earthquake
A volcano is a vent or crack in the eath's crust through which lava, ash, rock and gases erupt. The metals and rocks are found in the molten state in the mantle of the earth as it is very hot. This molten mass is known as magma. When the magma comes out in the earth crust through weak cracks or parts, it is then called lava. Lava is very thick. They move very slowly. Along with rocks, ash and bits fragmented lava and pumice also come during the volcano eruption.
Causes of Volcano
Effects of Volcano
The sudden shaking of the earth's surface is called an earthquake. Any three causes of earthquake are given below,
Any three effects of the earthquake are given below,
Any three safety measures of Earthquake are given below,
A volcano is a place on the earth's surface where molten rocks, gases and debris erupt through the earth's crust. When hot magma from the eath's surface flows through the cracks in the rocks to the surface of the earth, volcano occurs. When the water from the earth's surface enters the mantle through these cracks, the water evaporates and creates pressure because of which the magma flow up through these cracks which are known as volcanic eruption.
Any three effects of volcano are given below,