Essay on Earthquake. When the earth’s surface shakes, the phenomenon is referred to as an earthquake. Precisely, the sudden trembling of the earth’s surface is the cause of an earthquake. Earthquake is regarded as one of the deadliest natural disasters. Huge damage and loss of property are caused by earthquakes.
What is earthquake in your own words?
A sudden movement of the Earth’s lithosphere
(its crust and upper mantle). Earthquakes are caused by the release of built-up stress within rocks along geologic faults or by the movement of magma in volcanic areas. They are usually followed by aftershocks. See Note at fault.
What is earthquake explain?
An earthquake is
the result of a sudden release of stored energy in the Earth’s crust that creates seismic waves
. … At the Earth’s surface, earthquakes may manifest themselves by a shaking or displacement of the ground. Sometimes, they cause tsunamis, which may lead to loss of life and destruction of property.
What causes an earthquake essay?
Earthquakes are caused
when rock underground suddenly breaks along a fault
. This sudden release of energy causes the seismic waves that make the ground shake. When two plates are rubbing against each other, they stick a little. Most earthquakes occur along the edge of the oceanic and continental plates.
What do you do during an earthquake essay?
- DROP down onto your hands and knees before the earthquake knocks you down. …
- COVER your head and neck (and your entire body if possible) underneath a sturdy table or desk. …
- HOLD ON to your shelter (or to your head and neck) until the shaking stops.
What are the 10 causes of earthquake?
- Groundwater extraction – decrease in pore pressure.
- Groundwater – increase in pore pressure.
- Heavy rain.
- Pore fluid flow.
- High CO2 pressure.
- Building dams.
- Earthquakes.
- No earthquakes (Seismic quiescence)
What earthquake causes?
Earthquakes are the
result of sudden movement along faults within the Earth
. The movement releases stored-up ‘elastic strain’ energy in the form of seismic waves, which propagate through the Earth and cause the ground surface to shake.
What is the best definition of earthquake?
Earthquake is a term used to describe
both sudden slip on a fault
, and the resulting ground shaking and radiated seismic energy caused by the slip, or by volcanic or magmatic activity, or other sudden stress changes in the earth.
What is earthquake and its effects?
The primary effects of earthquakes are
ground shaking, ground rupture, landslides, tsunamis, and liquefaction
. Fires are probably the single most important secondary effect of earthquakes.
What are the 5 causes of earthquake?
- Volcanic Eruptions. The main cause of the earthquake is volcanic eruptions.
- Tectonic Movements. The surface of the earth consists of some plates, comprising of the upper mantle. …
- Geological Faults. …
- Man-Made. …
- Minor Causes.
Who is responsible earthquake?
Most natural earthquakes happen along fault lines, which are commonly (but not exclusively) found where
tectonic plates converge
. But earthquakes triggered by human activity can occur far from the edges of tectonic plates. Exactly what causes each induced earthquake depends on the type of human activity.
Why earthquake is essential for the Earth?
A: Earthquakes are very useful to humans
because they provide a picture of what’s going on underground
. … Earthquakes can also tell us about the internal structure of the Earth. By measuring the time it takes the seismic waves to travel through the Earth we can map out the structure of the Earth down to the core.
How can earthquakes be prevented?
We cannot prevent natural earthquakes from occurring but we can significantly mitigate their effects by
identifying hazards
, building safer structures, and providing education on earthquake safety. By preparing for natural earthquakes we can also reduce the risk from human induced earthquakes.
How long does an earthquake usually last?
Generally, only seconds
. Strong ground shaking during a moderate to large earthquake typically lasts about 10 to 30 seconds. Readjustments in the earth cause more earthquakes (aftershocks) that can occur intermittently for weeks or months.
Do and don’ts during earthquake?
DROP to the ground
; take COVER by getting under a sturdy table or other piece of furniture; and HOLD ON until the shaking stops. … Stay away from glass, windows, outside doors and walls, and anything that could fall, (such as lighting fixtures or furniture). Stay in bed if you are there when the earthquake strikes.
How does earthquake affect us?
Earthquakes usually
cause severe damage to urban centres
, resulting in the loss of life and damage to homes and other infrastructure. Although risks are normally associated with cities, the effects on the rural sector and farming communities can be devastating.
