Will Earthquakes and Mountains Move When Jesus Returns Again??

Earthquakes

An convulsion is i of the worst natural disasters on our earth. Nosotros think that the ground we stand on is very stable, merely it isn't. It moves quite a lot. In the last few decades scientists accept been able to notice out why earthquakes happen.

Earthquakes happen when there is a sudden vibration in the globe's crust. Information technology's like a large lorry that travels down your street. When it passes by, you lot feel your house shake.

Earthquakes can exist caused past a lot of things :

• Volcanoes that suddenly erupt
• Meteorites that striking the earth
• Undergrounds explosions
• Buildings that autumn apart

But virtually earthquakes happen considering the world's plates move.

In the middle of the 20th century scientists found out that continents do not always stay in the same place. They have been moving on plates for millions of years. The earth'due south surface is made up of many such plates. Where two plates see magma comes out of the inner part of the earth . These areas are called faults—breaks in the earth's chaff.

How plates move

When two plates move away from each other lava or magma comes out of the world. Most of this happens at the bottom of oceans, where the earth'southward crust is very thin. Lava cools downwards when information technology reaches the water and underwater mountains are formed.

When plates push button towards each other—i of them slides nether the other. Rocks are pushed up and new mountains are formed.

Some plates slide by each other— for case, one moves due north and the other moves s . When these plates move along faults a lot of energy is released and the biggest earthquakes happen.

Plates movement away from each other	Plates move towards each other	Plates slide past each other

We only hear about earthquakes once in a while , but they really happen every twenty-four hour period. There are more than 3 1000000 earthquakes every yr—most 8,000 every twenty-four hours or 1 every 11 seconds.

Just most of them are very weak or they happen in places where nobody lives. Some of them take place on the sea floor.

Where exercise earthquakes happen ?

Earthquakes occur all over the world but there are places where they happen more than oft. Big earthquakes can exist found where plates encounter.

80% of the world's earthquakes happen around the Pacific Sea—nearly the due east coast of Asia and the west declension of America. Japan has over 2,000 earthquakes every year and California and South America are as well very active convulsion zones. The edge of the Pacific Ocean is besides called the "Ring of Fire" because there are also many active volcanoes in this region.

Earthquake Waves

When there is a sudden movement in the world's chaff, energy moves in the form of waves . Information technology'due south similar dropping something into water.

Body waves move through the inner function of the earth and surface waves travel over the earth's surface.

Body waves can travel very fast—up to viii km a second. They travel through rock , h2o and gas . When they achieve other places on the earth'south surface they tin can be registered there. They are unremarkably the get-go waves to get to the surface.

Surface waves cause the most damage, but they movement very slowly. These waves come at the end of an earthquake.

Human being-made Earthquakes

Sometimes people can make earthquakes happen. They tin fill man-made lakes with h2o afterwards building a dam—or they examination atomic bombs underground. Some of these tests can help scientists find out how quakes happen.

How earthquakes are measured

With a machine called a seismograph scientists can tell where an earthquake happened and how stiff it was.

The place in the earth where the movement takes place is called the focus or hypocentre. From here, waves start to spread out in all directions. This focus can be very near to the surface or it can be hundreds of km below it. The area on the surface exactly to a higher place the focus is chosen the epicentre. This is the identify where the waves hit starting time and where the most impairment is done.

Whenever an earthquake hits us you lot hear how powerful it is. The Richter Scale is used to rate the magnitude of earthquakes. Modest quakes have a rating of under four. You lot won't see a lot of damage here. Medium-sized earthquakes accomplish between 5 and 7 on the scale, and the really big ones are above seven. The largest earthquake that has e'er been registered was at 9.5 on the Richter calibration.

In that location are more than 100 seismograph stations all over the earth. When the earth shakes seismologists compare the information they get and so they can tell where the earthquake really happened.

Effects of earthquakes

Earthquakes make the ground move. Buildings milk shake and many of them collapse. Landslides besides happen when rocks get loose.

Another danger is fire. In 1906 San Francisco was hitting by a big earthquake and many houses burned down because they were made of wood.

San Francisco earthquake of 1906

When an earthquake occurs on the sea floor, large waves - called tsunamis—hit the coast. They often come without any alert and they kill many people and destroy buildings and streets near the coast.

Earthquakes also can lead to diseases, especially in developing countries. When water supplies are destroyed people don't have safety water to drink. Sometimes earthquakes also hit hospitals where injured people are treated.

Dealing with earthquakes

We understand earthquakes a lot improve today than we did 50 years ago, simply nosotros still can't do very much about them. They are so powerful, that we cannot control them.

Scientists tin can tell us in which regions earthquakes volition probably happen, but they can't tell us exactly where.

So what tin we practise about earthquakes? We tin make our houses nosotros alive in and buildings we work in safer. Today architects employ materials that won't plummet when an convulsion hits—like steel and concrete.

The biggest earthquakes in history

856

200,000 people are killed in one of the deadliest earthquakes in history in Damghan, Iran.

1138

An earthquake in Aleppo, Syrian arab republic kills 230,000

1556

The deadliest earthquake in history hits Shensi province in Red china. About 1 million people are killed.

1755

The about serious convulsion in Europe hits Lisbon, Portugal. The whole city is destroyed. Nearly 70,000 people become killed.

1906

The city of San Francisco is striking by a large earthquake. A big burn down destroys well-nigh of the metropolis. Almost 500 people die.

1908

Messina, Sicily is totally destroyed by a big earthquake . Almost seventy,000 people are killed.

1923

Tokyo, Japan is destroyed by an earthquake with a magnitude of viii.3 . 150,000 people are killed.

1960

The strongest convulsion always recorded hits Chile. It reaches 9.5 on the Richter calibration. twenty,000 people die.

1964

The strongest earthquake in Northward America hits Anchorage Alaska. Body of water waves achieve a height of twenty metres. 200 people are killed.

1976

The biggest earthquake always recorded in Cathay leaves 242,000 people dead.

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Related Topics

• Plate Tectonics - What Causes Earthquakes
• San Andreas Error - Getting Ready For the Big 1
• Mount Etna Erupts Again
• E African Rift is Growing Quickly
• Volcanoes
• Rock
• Scientists sentenced to prison for not predicting earthquakes

Words

• cause = the reason for something
• collapse = to fall down
• compare = to substitution the information yous have with others
• concrete = a very hard textile made of cement
• crust = the top office of the earth
• damage =devastation
• decade = ten years
• destroy =harm , ruin
• developing countries = the poorest countries in the world
• direction =way
• disaster = when something very unsafe happens and a lot of people dice
• edge =border ,outer part of
• erupt = to pause out or explode
• especially =to a higher place all
• error = where two plates meet
• summit =how high something is
• injured = hurt
• landslide = rocks move downwards mountains and destroy houses or block roads
• lead to =to be the reason for
• loose =movable, to come free, not fixed
• lorry = a motorcar that carries lots of goods
• magma = rock in the inner part of the globe that is liquid
• magnitude = how strong or powerful an convulsion is . Information technology is measured on the Richter scale
• homo-made = something caused or made past a person
• medium-sized = non so big and not so small
• movement =when something moves
• occur = happen
• one time in a while = sometimes
• plate = the globe's crust broke upwards into many plates and the continents move on these plates
• charge per unit =rank, measure how strong something is
• reach = get to
• accomplish =go from .... to
• record =write down, keep data
• registered = recorded
• release =allow go
• safe water = clean water
• serious = dangerous
• slide =move, go down
• spread out = to move
• stable = information technology doesn't move
• sudden =unexpected, quick
• supplies =reserves
• surface =the top layer
• take place = happen
• towards each other =here: two objects movement to each other
• treat =care for, accept intendance of
• volcano = a mountain that often explodes and rock, gas and lava come up out of information technology
• weak = not very strong
• zone = places, areas

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Source: https://www.english-online.at/geography/earthquakes/earthquakes-and-plate-tetonics.htm

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