It was the sixth largest earthquake of the 20th century. Major fault structures like the Main Frontal Thrust, Main Boundary Thrust and Main Central Thrust, all splay branches of the Main Himalayan Thrust, accommodate the shortening rate as India is pushing into Asia. The study discovered signs of soil liquefaction including sills and sand volcanoes inside of at least twelve trenches in alluvial fans and on the Burhi Dihing River Valley that were formed by past seismic activity. Occurring on a Tuesday evening at 7:39 pm Indian Standard Time, the earthquake was destructive in both Assam (India) and Tibet (China), and approximately 4,800 people were killed. This is a typical example of the confusion between the essential concepts of magnitude and intensity. The tremors were “so strong that it caused huge landslides which in turn blocked many rivers in the mountainous … (p. The earthquake resulted in the deaths of 780 people in Eastern Tibet. The worst of these was the great Assam-Tibet Earthquake that occurred on Independence Day in 1950. Asia’s first Oil refinery is established in Digboi. Damage from the earthquake extended into Calcutta, where dozens of buildings were severely damaged, with some buildings partially collapsing. The northern and eastern parts of this valley are bounded by the Himalayan Frontal Thrust (HFF). A while later, another jolt of 3. 05 am. Aftershocks were numerous; many of them were of magnitude 6 and over and well enough recorded at distant stations for reasonably good epicentre location. Assam Type houses are a type of designs developed by the colonial British administration in Assam after the massive earthquake of 1897. [8], The earthquake caused moderate but widespread damage to nearby building but no collapses were reported. The surface wave was felt throughout the entire north-eastern India and in many parts of eastern India. History of quakes in Assam. [citation needed], The 1950 Assam–Tibet earthquake had devastating effects on both Assam and Tibet. [6] It is also the largest known earthquake to have not been caused by an oceanic subduction. He said, “Just experienced a massive earthquake in Assam. [15][16], CS1 maint: multiple names: authors list (, "Strong earthquake of 6.4 magnitude hits Assam", "Explained: In Assam earthquake, reminder of seismic hazard along HFT faultline", "Northeast India hit by magnitude 6.4 earthquake", "Assam Earthquake: 6.4 magnitude quake, 7 aftershocks jolt Northeast, tremors felt in Bengal", "Official Website of National Center of Seismology", "Assam earthquake: Known to cause deadly tremors, Kopili fault eludes experts", "The 2009 Bhutan and Assam felt earthquakes (Mw 6.3 and 5.1) at the Kopili fault in the northeast Himalaya region", "Quake of magnitude 6 strikes India's Assam, damages some buildings", "From damage caused to relief operations, Assam earthquake explained in 10 points", "Cracked roads, tilted buildings: Assam earthquake captured in scary photos, videos", "Assam earthquake: At least 10 injured, houses damaged", "Two die of shock after 6.4 magnitude quake in Assam", https://en.wikipedia.org/w/index.php?title=2021_Assam_earthquake&oldid=1023577385, Creative Commons Attribution-ShareAlike License, This page was last edited on 17 May 2021, at 04:18. It is also the largest known earthquake to have not been caused by an oceanic subduction. ... WikiProject India / Assam / Geography / History (Rated Start-class, Low-importance) In Rima, Tibet (modern-day Zayü Town), Frank Kingdon-Ward, noted violent shaking, extensive slides, and the rise of the streams. It created heavy landslides that … Another great earthquake, of magnitude 8.1, had shaken Assam earlier on June 12, 1897. Among the most severe are those recorded in 1897, with the Shillong Plateau as the epicentre; in 1930, with Dhuburi as the epicentre; and in 1950, with Zayu (Rima) in Tibet at the Arunachal Pradesh border as the epicentre. 1900 Tea research center is established in Tukulai, Jorhat. Rat Islands, 1965 – Magnitude 8.7. Sumatra Earthquake (2004)– 9.1. One of the deadliest natural disasters in recent history, the … In Tibet, Heinrich Harrer reported strong shaking in Lhasa and loud cracking noises from the earth. In addition to the extreme shaking, there were floods when the rivers rose high after the earthquake bringing down sand, mud, trees, and all kinds of debris. Asia’s first Oil refinery is established in Digboi. The 2010 Chile earthquake occurred off the coast of central Chile on … Two people died of shock and at least 10 others sustained injuries after an earthquake of the magnitude of 6.4 struck Assam at 7.51 a.m. on Wednesday. The 2010 Chile earthquake occurred off the coast of central Chile on … Among all the earthquakes that Assam has suffered from, the earthquakes of 1897 and 1950 are among the ten biggest earthquakes in recorded history. Offshore Maule, Chile. In the Dibang Valley, a landslide lake burst without causing damage, but another at Subansiri River opened after an interval of 8 days and the wave, 7 m (23 ft) high, submerged several villages and killed 532 people. Radiocarbon dating identified the deposits at roughly 500 years old, which would correspond with a recorded earthquake in 1548.[5]. 19:11, 22/5/196. Radiocarbon datingidentified the deposits at roughly 500 years o… [9], One of the more westerly aftershocks, a few days later, was felt more extensively in Assam than the main shock. The prediction came from research of the historical records from the area as well as the presumption that since the 1950 Medog earthquake enough slippage has taken place for a large earthquake to occur. The Indian Ocean tsunami struck the coasts of many countries in … Today this area is claimed as part of Zayü and Mêdog Counties in the Tibet Autonomous Region by China, and as part of Lohit District in Arunachal Pradesh by India. Several aftershocks with magnitudes of 6 and over. If just the Pandemic wasn’t enough, Assam is undergoing a series of Earthquakes. India is definitely treading through a dangerous and difficult path now, more than ever, when everyone hoped 2021 to be a better year for us. Oscillations of lake levels were experienced in Norway. [5][6] Analysis by India's National Centre for Seismology revealed that the earthquake involved slip along the Kopili Fault, near the Main Frontal Thrust. Assam has a history of disasters ranging from large earthquakes to severe floods. Instead, this quake was caused by two continental plates colliding. The earthquake, which clocked 8.7 on the Richter scale, changed the topography of the land with even … For those above the age of 80 the ravages of 1950 still remain vivid. [12] Landslides and liquefaction of the ground were reported in Assam. ♦ 1759 earthquake during the reign of king Rudra Singha - do- ♦ 1772 earthquake of relatively severe intensity. Waiting for details — Himanta Biswa Sarma (@himantabiswa) April 28, 2021. Indian Ocean Tsunami. The earthquake occurred as a result of oblique-slip faulting at a shallow depth just at the foothills of the Himalayas. In an attempt to further uncover the seismic history of Northeast India, field studies were conducted by scientists with the National Geophysical Research Institute and Institute of Physics, Bhubaneswar. [11] Among the buildings affected was an multi-story structure in Nagaon which tilted to its side and leaned against an adjacent building. [4] The quake struck at a depth of 34 km (21 miles), 140 km (86 miles) north of the main city of Guwahati. Assam, India has had: (M1.5 or greater) 0 earthquakes in the past 24 hours. Earthquakes are common in Assam. The inland 8.6 magnitude earthquake that hit Assam on 15th August 1950 damaged buildings and caused landslides. - do- ♦ 1732 earthquake. There were at least two more powerful aftershocks. Waiting for details”. The tectonics of the Assam region is dominated by convergence of the India, Burma and Eurasian plates. The earthquake occurred in the rugged mountainous areas between the Himalayas and the Hengduan Mountains. It resulted in approximate 1,542 human casualties and caused catastrophic damage to infrastructure. At about 7:51 A.M an earthquake measuring 6.4 on the Richter Scale was reported to have originated at its epicenter in Dhekiajuli in Sonitpur district of Assam. Assam, India has had: (M1.5 or greater) 0 earthquakes in the past 24 hours 2 earthquakes in … This great earthquake has a calculated magnitude of 8.6 and is regarded as one of the most important since the introduction of seismological observing stations. Recent one, the fourth […] [8] Its predominant slip sense is right-lateral strike-slip. The region has seen several “moderate to large earthquakes”. From such data the Indian Seismological Service established an enormous geographical spread of this activity, from about 90 deg to 97 deg east longitude, with the epicentre of the great earthquake near the eastern margin. In the eastern parts along with the HFF, there is the are the Lohit and Naga Thrusts. 3 earthquakes in the past 30 days. The worst of these was the great Assam-Tibet Earthquake that occurred on Independence Day in 1950. Magnitude 9.5. Earthquake History Much of Assam lies in the Bramaputra River Valley, except for a few southern districts. The epicenter of the earthquake was Rima, a sparsely populated region in the Indo-China border. History of earthquakes According to the NCS report, historical and instrumentally recorded data of earthquakes show the region has witnessed several moderate to large earthquakes in the past. Rat Island covers a small area in the state of Alaska in … “The Assam quake…stands out amongst the biggest temblors which have shaken our planet,” says a piece on the UC Berkeley Seismology Lab blog. Offshore Maule, Chile. The state is in the north-east of the country, south of the Himalayas. Seiches were observed as far away as Norway and England. The most powerful earthquake … An earthquake has struck in north-east India. Seiches So far, no causalities have been reported. Offshore Maule, Chile. 63–64.). 4 magnitude hit Tezpur at … The USGS said the quake hit at a depth of 34 kilometres, with the epicentre just 11km from the town of Dhekiajuli. The extraordinary sounds heard by Kingdon-Ward and many others at the times of the main earthquake have been specially investigated. The 1950 earthquake is considered one of the most disastrous in South Asia’s history. Here we ... 1897 Assam witnesses a devasting earthquake killing thousands of people. May be our vulnerabilities make us fragile and our present difficult to endure. The epicenter of the earthquake was Rima, a sparsely populated region in the Indo-China border. The earthquake is notable as being the largest recorded quake caused by continental collision rather than subduction, and is also notable for the loud noises produced by the quake and reported throughout the region. The shock was more damaging in Assam, in terms of property loss, than the earthquake of 1897. 12 earthquakes in the past 365 days The largest earthquake in Guwahati: this week: 3.8 in Dhekiajuli , Assam , India Another earthquake of 3. This area, south of the McMahon Line and now known as Arunachal Pradesh, is today disputed between China and India. 2 magnitude hit Assam's Nagaon district at 10. A powerful earthquake rocked many parts of Assam including Guwahati early on Wednesday morning. The earthquake was the tenth strongest earthquake in the world. [citation needed], Alterations of relief were brought about by many rock falls in the Mishmi Hills and surrounding forested regions. [8] Aftershocks were felt in Lhasa for days. The slow motion of the Eurasian and Indian plates created the massive Himalayas. [10] Two other Mw 7.0+ earthquakes rocked the Assam Valley in 1869 and 1943, is believed to have been on this fault, as well as the deadly 2016 Imphal earthquake. The earthquake was located just south of the McMahon Line between India and Tibet, and had devastating effects in both regions. Assam Earthquake is one of the biggest earthquake ever known. The 2010 Chile earthquake occurred off the coast of central Chile on … The earthquake happened in 1950. This led certain journalists to the belief that the later shock was 'bigger' and must be the greatest earthquake of all time. Trembles were felt across India, reaching as far as Ahmedabad and Peshawar. An article in Science, published in response to the 2001 Bhuj earthquake, calculated that 70 percent of the Himalayas could experience an extremely powerful earthquake. Landslides blocked the tributaries of the Brahmaputra. 1901 Cotton is established in Gauhati. Assam Earthquake: All Historic Sites in State Remain ‘Intact’ GUWAHATI: All the iconic archeological sites under the Archeological Survey of India (ASI) luckily escaped the massive 6.4 magnitude tremor and its aftershocks that rocked the entire state on Wednesday. In the Abor Hills, 70 villages were destroyed with 156 casualties due to landslides. [14] Two people in the Kamrup Metro and Nagaon districts died of heart attacks caused by the earthquake while ten others suffered injuries. A magnitude of 6.0 earthquake struck 11 km away from Dhekiajuli, A few vehicles were damaged when bricks fell on them. 1. It first hit at 19:39 pm on August 15, 1950. Cracks also appeared in the walls of homes and commercial buildings. Assam is an earthquake prone country. This article is part of WikiProject Earthquakes, a project to systematically present information on earthquakes, seismology, plate tectonics, and related subjects. 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