Hazards And Hazards Of Geo Hazards

The extent to which tectonic processes represent a hazard depends upon when and where they are experienced (40)

Most earthquake happen inside the lithosphere. Because with more deeper it gets, rocks are more softened, or the viscosity increases. The more viscosity the rock gets, the more it absorbs energy and deform smoothly. Base on this viscosity-elasticity nature of the lithosphere, Gunawardana (2017) assumed that the elastic energy accumulated is proportional to the earthquakes released energy.

An earthquake is what happens when two blocks of the earth suddenly slip past one another. The surface where they slip is called the fault of fault plane. The location below the earth's surface where the earthquake starts is called the hypocenter, and the location directly above it on the surface of the earth is called the epicenter. There are four types of earthquakes tectonic,volcanic,collapse,and explosion. Another good topic to study is deeper into the science of earthquakes. ”Most earthquakes occur along faults, or breaks, in the Earth's crust.” by Bill Haneberg.http://tremor.nmt.edu/faq/what.html

destruction, as a result of movements within the earth’s crust of volcanic action. Well no parts of the surface of the earth are protected from earthquakes, but some parts of the world experience earthquakes more frequently than others do. You will find that earthquakes are usually most common at tectonic plate boundaries where different plates meet. The largest events usually happen where two plates are colliding or colliding and sliding past one another, particular around the edge of the pacific plate. Large shallow earthquakes also happen where two plates are pulling apart with the creation of new oceanic crust along mid-ocean ridges and on the transform faults that intersect them. Shallow intraplate earthquakes occur in the relatively stable interior of continents away from

Geological and environmental circumstances that have an affect have been designated geohazards. There are many different categories of geohazards that can occur in the world. Some of these geohazards include landslides, earthquakes, tsunamis, volcanoes, lahars, and hydrothermal eruptions. These natural disasters can all have both short and long term effect on the surrounding environment. It is important to recognize the different kinds of geohazards and how to know if we can take preventive measures or very minimally understand which areas may be more susceptible to a geohazard event.

Earthquakes are usually caused when rock underground suddenly breaks along a fault. A fault is a break in the rocks that make up the Earth’s crust, along which rocks on either side have moved past each other. When these rocks push together they release energy/ vibration. This sudden

Faults – A fault is defined as a thin zone of crushed rock that separates chunks of the earth’s crust. When an earthquake occurs on one of these faults, the rock on one side of the fault slips. When stresses in the earth’s outer layer push the sides of the fault together, the friction holds them together so they do not slip immediately. However, eventually once enough pressure is applied, the rocks slip swiftly causing energy to disperse in waves that travel through the rock to cause the shaking that is felt during an earthquake. Once this slip takes place the earthquake will continue to shake the ground until something stops the fault from continuing to slip which is usually more crushed rock that will apply enough pressure to keep it from moving. Faults can be centimeters to thousands of miles long making them incredibly difficult to study (Earthquake Country, 2014).

The geographic phenomenon causes a mysterious shaking and even will cause structures to collapse. The shaking from them is very destructive and a threat to human life if strong enough. Occurring every day, but some are not powerful enough to be felt because they contrast from being harmless to deadly. They are natural disasters that happen unexpectedly while destroying almost everything in just under a few minutes and extremely harmful and more powerful than a nuclear object would be. Earthquakes are incidents when the rocks under the earth move, freeing energy that later causes shaking. The plates move in many different ways and occur just as frequently as in the past (Wells). An earthquake is the most deadly disaster with many leading factors and disputes (Stock).

“Earthquakes are caused when stress, building up within the rocks of the earth's crust, is released in a sudden jolt. Rocks crack and slip past each other causing the ground to vibrate.”

The tectonic movements in the earth’s crust are the initial causes of earthquakes. These movements bring about forces of tension and pressure, these forces stress up the earth’s crust. As the stresses increase, an imbalance in equilibrium of the rocks which results into breaking of rocks and displaced. The energy accumulated during the process is released giving raise to waves. The waves cause vibration of objects they come across with causing a lot of impact on them. This may include shaking and rapture of the ground. As a result there is damage of infrastructure, landslides, fires due to damage caused to electric and gas lines.

Earthquakes leave a series of “aftershocks” which eventually affects the world and the people in it. Hours, days or weeks can go by and more quakes occur after the main earthquake. Each year around the world there is about 20,000 earthquakes. The majority go unnoticed because of how weak these

Earthquakes are naturally reoccuring ecological patterns. In a sense, they’re the Earth’s natural means of releasing stress and energy as a result of plate movement under the surface. Over thousands of years, like many other ecological behaviors, seismic activities have compelled scientists to study countless records of their impact in the natural world and in human civilization. They’ve also shaped the way we’ve lived relevant to our environments, designed our very continents, and are revealing to us insights of how the world is made up. In this essay, research and discussion will highlight the importance of earthquakes in earth systems, the relationship between earthquakes and the internal structure of the Earth, and issues or debate being brought up in the scientific community about it.

Earthquakes are a type of natural disaster, caused by the movement of tectonic plates in the Earth’s crust. The sudden and rapid movements of a block of rock slipping past another block of rock along faults in Earth’s crust cause an earthquake to occur, as the rubbing of the rocks against each other, creates energy, which causes seismic waves that shake the ground. The area within the Earth, where the earthquake begins, is known as the focus, or the hypocenter. Directly above the focus of an earthquake, is the epicenter. An earthquake normally is followed by aftershocks, which are smaller earthquakes that occur following the main shock of a larger earthquake. Aftershocks are caused by the stress that is added to the crust of the Earth by the initial shock of the earthquake. An aftershock can sometimes be as big and disastrous as the main shock of the earthquake. However, if it is bigger than the first main earthquake, then it is known as the main shock, and the previous smaller earthquakes are known as the foreshocks. The aftershocks of an earthquake can occur minutes, hours, days, or even a few weeks after the main shock.

Earthquakes are one of many natural disasters that occurs around the world. This natural disaster causes both destruction of the Earth’s surface and its lithosphere. The cause of these violent natural disasters is when two tectonic plates, slide past each other at a transform plate boundary. Before the plates slide past each other, they get stuck and cannot move. Stress forms and when it becomes too great, a rapid release of energy causes the earthquakes to happen, which produces seismic waves. Seismic waves cause vibrations which can cause faults to form or a crack in the Earth’s lithosphere. Earthquakes have an impact on buildings by the waves causing vibrations that can be so violent, they can crumble a building.

Earthquakes happen when two tectonic plates touch each other. When those plates experience tension and friction, they lock