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1803 Garhwal Earthquake
The 1803 Garhwal earthquake occurred in the early morning of September 1 at 01:30 local time. The estimated 7.8-magnitude-earthquake had an epicenter in the Garhwal Himalaya near Uttarkashi, British India. Major damage occurred in the Himalaya and Indo-Gangetic Plain, with the loss of between 200 and 300 lives. It is among the largest Himalaya earthquakes of the 19th-century, caused by the result of thrust faulting. Tectonic setting The Himalaya is located at the convergent boundary where active convergence leads to continental collision. The India and Eurasian plates began colliding approximately 50 million years ago when the Tethys Ocean closed. The Main Himalayan Thrust (MHT), a decollement structure, defines the boundary between the Indian Plate and Eurasian Plate. The convergent zone also contains three other major faults; the Main Boundary Thrust, Main Central Thrust and South Tibetan Detachment. At the surface, the Main Himalayan Thrust propagates along the Main Frontal T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Main Himalayan Thrust
The Main Himalayan Thrust (MHT) is a décollement under the Himalaya Range. This thrust fault follows a NW-SE strike, reminiscent of an arc, and gently dip towards the north, beneath the region. It is the largest active continental megathrust fault in the world. Overview The MHT accommodates crustal shortening of India and Eurasia as a result of the ongoing collision between the Indian and Eurasian plates. Deformation of the crust is also accommodated along splay structures including the Main Frontal Thrust (MFT), Main Boundary Thrust (MBT), Main Central Thrust (MCT) and possibly the South Tibetan Detachment. The MHT is the root detachment of these splays. At this present moment, the MFT and MHT accounts for almost the entire rate of convergence (15-21 mm/yr). This fault defines where the India subcontinent is underthrust beneath the Himalayan orogenic wedge. In April 2015, a section of the MHT produced a blind rupture earthquake, killing nearly 9,000 Nepalese. Associa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Main Boundary Thrust
The Main Frontal Thrust (MFT), also known as the Himalayan Frontal Thrust (HFT) is a geological fault in the Himalayas that defines the boundary between the Himalayan foothills and Indo-Gangetic Plain. The fault is well expressed on the surface thus could be seen via satellite imagery. It is the youngest and southernmost thrust structure in the Himalaya deformation front. It is a splay branch of the Main Himalayan Thrust (MHT) as the root décollement. It runs parallel to other major splays of the MHT; Main Boundary Thrust (MBT) and Main Central Thrust (MCT). The Sunda Megathrust, which extends from the Banda Islands to Myanmar is joined with the MFT. The fault strikes in a NW-SE direction and dips at an angle of 20° to 30° in the north. Main Boundary Thrust The Main Boundary Thrust (MBT) is another major thrust fault in the Himalaya orogenic wedge that was active in the Cenozoic The Cenozoic ( ; ) is Earth's current geological era, representing the last 66million ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Landslide
Landslides, also known as landslips, are several forms of mass wasting that may include a wide range of ground movements, such as rockfalls, deep-seated grade (slope), slope failures, mudflows, and debris flows. Landslides occur in a variety of environments, characterized by either steep or gentle slope gradients, from mountain ranges to coastal cliffs or even underwater, in which case they are called submarine landslides. Gravity is the primary driving force for a landslide to occur, but there are other factors affecting slope stability that produce specific conditions that make a slope prone to failure. In many cases, the landslide is triggered by a specific event (such as a heavy rainfall, an earthquake, a slope cut to build a road, and many others), although this is not always identifiable. Causes Landslides occur when the slope (or a portion of it) undergoes some processes that change its condition from stable to unstable. This is essentially due to a decrease in the She ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meizoseismal Area
The meizoseismal area in an earthquake is the area of maximum damage. For example, in the Charleston, South Carolina, earthquake of 1886, the meizoseismal area was an area about twenty by thirty miles stretching northeast between Charleston and Jedburg and incorporating Summerville. The estimated epicenter was near Middleton Place Middleton Place is a plantation in Dorchester County, along the banks of the Ashley River west of the Ashley and about northwest of downtown Charleston, in the U.S. state of South Carolina. Built in several phases during the 18th and 19th cent .... References Seismology {{seismology-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Srinagar, Uttarakhand
Srinagar is a city and municipal corporation in Pauri Garhwal district in the Indian state of Uttarakhand. It is located about 33 km from Pauri town, the administrative headquarters of Pauri Garhwal district, Uttarakhand, India. Geography Srinagar is located at . at the left bank of Alaknanda river. It has an average elevation of 560 metres (1,837 feet). It is the largest town in the Garhwal Hills. It is reached by national highway NH58 from Rishikesh, Srinagar is about 104 km from Rishikesh which is the last city on the plains of Uttarakhand and from where the mountains start. Srinagar can also be reached via Kotdwara, from Kotdwara it takes maximum 5 hours to reach there.It is a municipal board in the Pauri district of uttarakhand which is now upgraded to Municipal Corporation recently. Demographics As per the 2011 census, Srinagar had a population of 20,115. Males constituted 52% of the population and females 48%. Srinagar is the largest city in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1950 Assam–Tibet Earthquake
The 1950 Assam–Tibet earthquake, also known as the Assam earthquake, occurred on 15 August and had a moment magnitude of 8.6. The epicentre was located in the Mishmi Hills in India, known in Chinese as the Qilinggong Mountains (), south of the Kangri Karpo and just east of the Himalayas in the North-East Frontier Agency part of Assam, India. This area, south of the McMahon Line and now known as Arunachal Pradesh, is today disputed between China and India. It is the strongest earthquake ever recorded on land. 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. 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. Geology In an attempt to further uncover the seismic history of Northeast Ind ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1934 Nepal–India Earthquake
The 1934 Nepal–India earthquake or 1934 Bihar–Nepal earthquake was one of the worst earthquakes in India's history. The towns of Munger and Muzaffarpur were completely destroyed. This 8.0 magnitude earthquake occurred on 15 January 1934 at around 2:13 pm IST (08:43 UTC) and caused widespread damage in northern Bihar and in Nepal. Earthquake The epicentre for this event was located in eastern Nepal about south of Mount Everest. The areas where the most damage to life and property occurred extended from Purnea in the east to Champaran in the west (a distance of nearly ), and from Kathmandu in the north to Munger in the south (a distance of nearly ). The impact was reported to be felt in Lhasa to Bombay, and from Assam to Punjab. The earthquake was so severe that in Kolkata, around 650 km (404 mi) from epicenter, many buildings were damaged and the tower of St. Paul's Cathedral collapsed. Ground effects A particular phenomenon of the earthquake was that sand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1505 Lo Mustang Earthquake
The 1505 Lo Mustang earthquake ( ne, सन् १५०५ को मुस्ताङ भूकम्प) occurred on 6 June 1505 and had an estimated magnitude between 8.2 and 8.8 making it one of the largest earthquakes in Nepalese history. The earthquake killed an approximate 30 percent of the Nepalese population at the time. The earthquake was located in northern Nepal, affected southern China, and northern India. See also *List of historical earthquakes *List of earthquakes in Nepal Lying in one of the most seismically active regions of the world, Nepal has a long history of earthquakes. The first documented earthquake event in the country dates back to 7 June 1255, during the reign of King Abhaya Malla. The quake, measuring 7 ... References {{DEFAULTSORT:1505 Lo Mustang Earthquake 1505 Earthquakes in India Earthquakes in Nepal Natural disasters in Nepal Lo Mustang 16th century in Nepal Megathrust earthquakes in India ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nepal
Nepal (; ne, नेपाल ), formerly the Federal Democratic Republic of Nepal ( ne, सङ्घीय लोकतान्त्रिक गणतन्त्र नेपाल ), is a landlocked country in South Asia. It is mainly situated in the Himalayas, but also includes parts of the Indo-Gangetic Plain, bordering the Tibet Autonomous Region of China to the north, and India in the south, east, and west, while it is narrowly separated from Bangladesh by the Siliguri Corridor, and from Bhutan by the Indian state of Sikkim. Nepal has a diverse geography, including fertile plains, subalpine forested hills, and eight of the world's ten tallest mountains, including Mount Everest, the highest point on Earth. Nepal is a multi-ethnic, multi-lingual, multi-religious and multi-cultural state, with Nepali as the official language. Kathmandu is the nation's capital and the largest city. The name "Nepal" is first recorded in texts from the Vedic period of the India ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Assam
Assam (; ) is a state in northeastern India, south of the eastern Himalayas along the Brahmaputra and Barak River valleys. Assam covers an area of . The state is bordered by Bhutan and Arunachal Pradesh to the north; Nagaland and Manipur to the east; Meghalaya, Tripura, Mizoram and Bangladesh to the south; and West Bengal to the west via the Siliguri Corridor, a wide strip of land that connects the state to the rest of India. Assamese and Boro are the official languages of Assam, while Bengali is an additional official language in the Barak Valley. Assam is known for Assam tea and Assam silk. The state was the first site for oil drilling in Asia. Assam is home to the one-horned Indian rhinoceros, along with the wild water buffalo, pygmy hog, tiger and various species of Asiatic birds, and provides one of the last wild habitats for the Asian elephant. The Assamese economy is aided by wildlife tourism to Kaziranga National Park and Manas National Park, which are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lower Himalayan Range
The Lower Himalayan Range ( ne, पर्वत शृङ्खला parbat shrinkhalā) – also called the Middle Himalayas or Lesser Himalayas or Himachal – is a major east–west mountain range with elevations 3,700 to 4,500 m (12,000 to 14,500 feet) in the northernmost regions of the Indian subcontinent along the crest, paralleling the much higher High Himalayas range from the Indus River in Pakistan across northern India, Nepal and Bhutan but then the two ranges become increasingly difficult to differentiate east of Bhutan as the ranges approach the Brahmaputra River. The Himachal range also parallels the lower Shiwalik or Churia Range (Outer Himalaya) to the south. The Pir Panjal is the largest range of the Lesser Himalayas. Background Southern slopes of the Himachal Range are steep and nearly uninhabited due to a major fault system called the 'Main Boundary Thrust". The crest and northern slopes slope gently enough to support upland pastures and terraced fields. Ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
