Earthquake

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What Happens After an Earthquake?

What Happens After an Earthquake?

People often wonder whether an earthquake can drastically change the topography of a region. A few tremors and some buildings that collapse does not mean that the shape of the earth has changed, does it? However, earthquakes can and do change the topography of the region. An earthquake raised Rhodes island. The line of erosion (on the rock to the left) shows the sea level before the earthquake. The rise is uneven in different parts of the island, usually several meters....

How are Earthquakes Recorded?

How are Earthquakes Recorded?

When an earthquake takes place, people say that it measured 6.2 or 6.5 on the scale. The scale they are referring to is the Richter Scale developed by Charles Richter in the 1930s. The Richter Scale measures the magnitude of the seismic waves or vibrations that travels across the earth’s surface. The scale uses a logarithmic formula using high-frequency data collected from seismograph stations. However, long before Richter developed his scale, a Chinese philosopher Chang Heng invented a device to measure earthquakes in 132 A....

How do Earthquakes Happen?

How do Earthquakes Happen?

Simply put, the shaking of the earth caused by a sudden shifting of rocks below its surface, is called an earthquake. The earths crust or outermost layer, is not made of one single piece of solid rock. It is actually made up of independent sheets of rocks called tectonic plates. The tectonic plates of the world were mapped in the second half of the 20th century. These plates slide against each other, giving rise to physical changes in the earths topography....

Why do Earthquakes Occur?

Why do Earthquakes Occur?

As a result of upheavals below its surface, the earth shakes now and then. This shaking of the earth is known as an earthquake. Few natural events are as violently destructive as an earthquake. It usually strikes without warning, giving off violent vibrations in the process. These vibrations not only shake the ground but also sometimes crack it open. And then, there is chaos, for earthquakes have been known to wipe out cities and civilisations....

What is an Earthquake?

What is an Earthquake?

One moment, the world seems just the way it was yesterday, the day before, last year, or even the day before the day before. All is well with the world. It’s a beautiful sunny day and you are sitting drinking your morning tea or coffee relaxed and enjoying the day. Suddenly there is a rattling of plates and glasses. Within seconds chairs and tables are rocking violently, the fans sway crazily and crockery is falling off the shelves....

What to do During an Earthquake?

What to do During an Earthquake?

An earthquake is literally an earth shattering experience! Here you are enjoying an afternoon snooze, or having a cup of coffee in the morning or even sleeping under a quilt on a cold winter night when WHAM! The entire crockery shelf collapses shattering plates and cups; the painting on the wall nearly knocks you down as it falls; or the antique fan looks like it will brain you as it hangs down, held by a single wire!...

What is a Tsunami?

What is a Tsunami?

Last year there were three more fishing villages in the Pacific island country of Papua New Guinea than there are today. You might ask why. The answer is that these three villages were washed away by an ocean wave that was more like a giant wall of water. It goes by the name tsunami, a Japanese term meaning a harbour wave. Ocean that Becomes a Giant Wall [Illustrations by Kusum Chamoli] A tsunami is caused by a disturbance in the sea floor, just like the disturbances on land....

Where are the Shaking Minarets?

Among the many architectural marvels of the world, like the leaning tower of Pisa, the whispering gallery at St Paul’s Cathedral at London or the musical pillars of South India, are the astonishing and historical shaking minarets of Ahmedabad, in Gujarat state, India. The minarets are so unique that if one minaret in shaken, the other sympathetically shakes too! Barely a kilometre away from the Ahmedabad city railway station is the Sidi Bashir mosque (Muslim equivalent of a temple) famed for its jhulta minars or shaking minarets (tall tower-like structures, either at the entrance gate or on the four corners)....

Another Big Quake for 2010 – Chile

Where: Santiago,Chile March 17, 2010 : Chile experienced an 8.8-magnitude on February 27, 2010. Around 700 people lost their lives. This was the fifth strongest earthquake recorded in the world since 1900. The quake struck near Concepcion, Chile’s second largest city, where thousands of people were holidaying over the weekend. In neighbouring Argentina, houses and power lines collapsed. There were three tsunami waves that rose at least four metres (13 feet) along Chile’s coastline. By March 12, 2010, there had already been over 300 aftershocks from the quake....

The Angry King

The Angry King

In the mountains of southern Luzon, there is a land of tobacco-growers. Many, many years ago, this land was ruled by a king named Hari Ka Buskid. He was a wise king, and during his reign the people of his kingdom were rich and prosperous. The king did not scorn to go among the tobacco-growers and advise them on the best methods of tending their crops. It was not surprising, therefore, that this kingdom was known to have the best and largest crop in the land....

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