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causes of assam earthquake 1950

The earthquakes of Bihar (1903 and 1934), of Baluchistan (1935), of Tokyo (1923), of Assam (1897 and 1950) and recent earthquakes of Chile, Mexico, Yugoslavia and Iran caused great loss to human lives and property, and brought about many changes to the earth’s surface.

All these processes occur so rapidly that the equilibrium of the concerned crustal surface is suddenly disturbed and hence earth tremors are caused.Reid’s elastic rebound theory very well explained the occurrences of seismic events in Californian valley in 1872, caused due to creation of a massive fault in the open valley. Compression in the earth’s crust; There have been many examples of Earthquakes in Australia are being caused because of the movements along faults. Accordingly, it was named the Assam earthquake.

Many seismic events are co-related with the dams and reservoirs, such as Koyna earthquake due to Koyna reservoir construction, in 1967, Greece earthquake in 1931 due to Marathon dam construction. The term seismic seiche was coined by Anders Kvale in 1955 to describe oscillations of lake levels in Norway and England caused by the earthquake of August 1950 in Assam, India. According to Reid the underground rocks are elastic like rubber and expand when stretched and pulled. The explosive violent gases during the process of vulcanicity try to escape upward and hence they push the crustal surface from below with great force and thus is caused severe earth tremor of high magnitude.

Over the past few years it has had to face the challenge of invading elephants. This earthquake was even more powerful than the Assam earthquake of 1897 but, despite its significance for Assam, it was not an Indian earthquake.The great Assam earthquake of June 12, 1897, magnitude 8.3, is the largest known Indian intraplate earthquake of the last two centuries. The slow motion of the Eurasian and Indian plates created the massive Himalayas. It must be mentioned that the magnitude of earthquakes depends upon the intensity of volcanic eruptions. Major examples of such an earthquake were in Assam, India (1897 and 1950).

The 1950 earthquake is considered one of the most disastrous in South Asia’s history. The London Times and the New York Times published several reports on this earthquake. Two thousand homes, temples and mosques were destroyed there and over 1,500 people killed. The Assam earthquake of August 15, 1950, magnitude 8.6, was centered at Rima in China, but it was the Brahmaputra valley in Assam that the most extensive damage was experienced. (p. However, he had little opportunity for observing more than the violent shaking and the rise in level of the streams because his attention was devoted to how he could escape from the area and get back to India. An entire village was washed away because of the earthquake.

Earthquakes are common in Assam.

This earthquake caused huge damage in Assam, India and Tibet, China. Huge landslides had occurred and, as they were photographed and compared with existing images, it was seen that the overall topography had changed, to the extent that the view from the air was no longer the same as it had been before 1950.The only available on-the-spot account of earth movements came from a botanical explorer who was at Rima. The occurrence of severe devastating earthquake of San Francisco in 1960, explained by H.F.Reid, who was one of the official investigations of san Francisco earthquake disaster, to advance his famous and appreciated elastic rebound theory. Whenever these gases become successful in breaking the weak crustal surface they appear on the earth’s surface with violent explosion and great force causing devastating volcanic eruption which causes sudden disequilibrium in the crustal surface to invite severe earth tremors.

A scimitar-shaped bay in the hills on the east bank is occupied by a succession of terraces superimposed on one another, the uppermost being at the very foot of the steep outer range;

There are about 5,000 of these huge animals in the Assam Region and the encroachment on their natural habitat by more and more farmers, involving removal of forest, coupled with the destruction caused by natural disasters, forced the elephants to raid human areas for food for the first time.

It must be mentioned that Assam earthquake, Bihar earthquake, Bhuj earthquake caused mainly by faulting.

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