By: avletters | December 17, 2017

To quantify earthquake, usually three prospects are considered, namley, Amplitude, Frequency Content and Duration. All of these parameters must be taken into consideration while describing the ground motion as without the other, complete study of earthquake is impossible. In the attached file, the author has used software, Seismo Singal, in finding out the ground motion parameters of Kobe Earthquake (1995), Japan and corresponding parameters are described.

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By: avletters | December 11, 2017

Nepal nearly after about 83 yrs got struck again with an earthquake of high magnitude that is able to destroy normally built residential RCC houses. The earthquake on 25 April, 2015, with magnitude of 7.8 is considered to be the worst earthquake since 1932, when it was hit with 8.2 earthquake which killed 10,000 to 12,000 people. The epicenter of the earthquake was less than 80.4 km (50 miles) northwest of Kathmandu, the country’s capital. According to USGS, the source of the earthquake is relatively shallow, about 8.22km (5.13 miles) in depth.

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By: avletters | August 08, 2017

Nepal is an earthquake and disaster prone country. Landslides, epidemics, fire hazards triggered by earthquake causes considerable losses of human lives and property. The main reason behind the earthquake in Nepal is the Indian plate colliding with the Eurasian plate. The movement is continuously occurring at the rate of 4-5 cm per year and the only way to release this energy is through the earthquakes. The upward climb of Everest and its sister mountains is accompanied by numerous tremors. Moreover, the remnants of a prehistoric lake, a 300 meter-deep layer of black clay, lies underneath the Kathmandu Valley. This augments the damage caused by severe earthquakes.

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By: avletters | August 07, 2017

Nepal lies on the boundary of two massive tectonic plates – the Indo-Australian and Eurasian Plates. It is the collision of these plates that created Himalayas and the earthquakes with them. The Indian tectonic plate is continuously pushing the Eurasian plate with about a rate of about 4-5 cm per year. This rate is considered to be quite high, considering the size of the plates of earth’s crust involved. On analogy, with the human body, this is twice the speed with which human fingernails grows.

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