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earth science \ geoscience \ landslides
Landslides- II
By Afroz Ahmad Shah The famous Portuguese Bend landslide in the summer of 1956, when people noticed that the ground beneath them had begun to move, remind us of the potential of such forces to move the ground (Figure, a). It is estimated that a 105-hectare (260-acre) section of the slope was breaking free at [...]
earthquake \ geoscience \ landslide
Landslides- I
By Afroz Ahmad Shah Natural disasters like earthquakes, tsunamis, landslides, wildfires, cyclones, droughts, floods etc. continuously pose constant threats to our young, 10,000-years-old, civilization. The devastations of Sumatra and Thai coasts in 2004, of Kashmir and New Orleans in 2005, of southwest Java in 2006, of Sumatra again in 2007, western Sichuan and Myanmar in [...]
earth science \ geoscience \ Kashmir
Earth’s Internal Structure-II
By Afroz Ahmad Shah As I have discussed in my previous article, that through the vast amount of evidences obtained from the earthquakes waves, meteorites, which fall on Earth, magnetic fields, some rare exposures of the deeper section of the Earth’s layers, and other physiochemical properties demonstrate that Earth is made up of three major [...]
Earth \ geoscience \ United States National Science Foundation
Earth’s Internal Structure-I
By Afroz Ahmad Shah The Earth’s internal structure is mostly studied through indirect means because the deepest hole though the Earth can only be drilled down to a few kilometers. This is because of the prevailing complex physiochemical conditions within the Earth and the lack of a robust scientific gear to drill down to the [...]
earth science \ earthquakes \ geoscience
Earthquake Waves
By Afroz Ahmad Shah During any earthquake a large amount of strain energy is released, which travels as waves in all directions through the layers of the Earth, reflecting and refracting at each interface. The waves are called seismic waves or earthquake waves. These are similar to sounds waves, which are created through a disturbance [...]
a special weekly column \ earthquakes \ geoscience \ Kashmir \ tsunami
Why some earthquakes lead to tsunamis?
By Afroz Ahmad Shah Some of the past earthquakes, which have been followed by tsunamis have been of the magnitude 9.0 (1952), of Kamchatka, the magnitude 9.1 (1957), of Andrean of Islands, Alaska, the magnitude 9.5 (1960) Chile, and the magnitude 9.2 (1964), Prince William Sound, Alaska. However; the scale of destruction and the damage [...]
earthquakes \ geoscience \ volcanoes
Volcanoes
By Afroz Ahmad Shah Earthquakes and volcanic eruptions are two of the most dangerous natural disasters, which have resulted in immense loss to life and property. However, several volcanic eruptions have also created some spectacular mountains. It is estimated that about 50 or so volcanoes erupt every year, but, only a few severely disrupt human [...]
earth science \ geoscience \ India \ Kashmir
Earthquakes: Myths And Science
By Afroz Ahmad Shah Earthquakes continuously pose unremitting threats to our young, 10,000-year-old, civilization. There are ample evidences to map a complete profile of vulnerabilities, which we have been facing in the recent past. The devastations of Acehnese and Thai coasts in 2004, of Kashmir and New Orleans in 2005, of southwest Java in 2006, [...]
earth science \ geoscience \ India \ Kashmir
A new geological epoch and the sixth mass extinction
By Afroz Ahmad Shah The geological records tell us that Earth is about 4.5 to 4.6 billion years old. This number is calculated by various vigorous scientific investigations, which deal with the dating of minerals and other records preserved within rocks. Accordingly, Earth has been divided into several geological time periods. Throughout its past, it [...]
earth sciences \ geoscience \ Kashmir
Geo Science Education: A Deprivation
The disastrous tsunamis and earthquakes trigger inquiry and inspire fear in us to understand the earth. It was only recently, when some of these events shook the world out of the torpor that it was in. Now, we are curious to understand the system and its integration with the other systems. But, how far have [...]
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