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1555 Kashmir Earthquake
The 1555 Kashmir earthquake occurred at around midnight in the month of Ashvin in the Hindu calendar, or September in the Gregorian calendar, although the exact day of occurrence is not known. The earthquake seriously impacted the Kashmir Valley in present-day Pakistan and northwestern India. A moment magnitude () of 7.6 to 8.0 and Modified Mercalli intensity of XII (''Extreme'') has been estimated for the earthquake. Thought to be one of the most destructive in the Kashmir Valley, the earthquake caused serious widespread damage and ground effects, killing an estimated 600–60,000 individuals. Tectonic setting Northern Pakistan and India are situated at the corner of an active destructive plate boundary that separates the Indian Plate from the Eurasian Plate. The boundary is defined along the Main Himalayan Thrust where the Indian Plate is colliding with the Eurasian Plate. The slightly oblique convergence occurs at a rate of 17 ± 2 mm/yr along the Main Himalayan Thrus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fault (geology)
In geology, a fault is a planar fracture or discontinuity in a volume of rock across which there has been significant displacement as a result of rock-mass movements. Large faults within Earth's crust result from the action of plate tectonic forces, with the largest forming the boundaries between the plates, such as the megathrust faults of subduction zones or transform faults. Energy release associated with rapid movement on active faults is the cause of most earthquakes. Faults may also displace slowly, by aseismic creep. A ''fault plane'' is the plane that represents the fracture surface of a fault. A ''fault trace'' or ''fault line'' is a place where the fault can be seen or mapped on the surface. A fault trace is also the line commonly plotted on geologic maps to represent a fault. A ''fault zone'' is a cluster of parallel faults. However, the term is also used for the zone of crushed rock along a single fault. Prolonged motion along closely spaced faults can blur the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paleoseismology
Paleoseismology looks at geologic sediments and rocks, for signs of ancient earthquakes. It is used to supplement seismic monitoring, for the calculation of seismic hazard. Paleoseismology is usually restricted to geologic regimes that have undergone continuous sediment creation for the last few thousand years, such as swamps, lakes, river beds and shorelines. In this typical example, a trench is dug in an active sedimentation regime. Evidence of thrust faulting can be seen in the walls of the trench. It becomes a matter of deducting the relative age of each fault, by cross-cutting patterns. The faults can be dated in absolute terms, if there is dateable carbon, or human artifacts. Many notable discoveries have been made using the techniques of paleoseismology. For example, there is a common misconception that having many smaller earthquakes can somehow 'relieve' a major fault such as the San Andreas Fault, and reduce the chance of a major earthquake. It is now known (u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Himachal Pradesh
Himachal Pradesh (; ; "Snow-laden Mountain Province") is a state in the northern part of India. Situated in the Western Himalayas, it is one of the thirteen mountain states and is characterized by an extreme landscape featuring several peaks and extensive river systems. Himachal Pradesh is the northernmost state of India and shares borders with the union territories of Jammu and Kashmir and Ladakh to the north, and the states of Punjab to the west, Haryana to the southwest, Uttarakhand to the southeast and a very narrow border with Uttar Pradesh to the south. The state also shares an international border to the east with the Tibet Autonomous Region in China. Himachal Pradesh is also known as , meaning 'Land of Gods' and which means 'Land of the Brave'. The predominantly mountainous region comprising the present-day Himachal Pradesh has been inhabited since pre-historic times, having witnessed multiple waves of human migrations from other areas. Through its history, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chamba, Himachal Pradesh
Chamba is a town in the Chamba district in the Indian state of Himachal Pradesh. According to the 2001 Indian census, Chamba has a population of 20,312 people. Located at an altitude of above mean sea level, the town is situated on the banks of the Ravi River (a major tributary of the Trans- Himalayan Indus River), at its confluence with the Sal River. Though historical records date the history of the Chamba region to the Kolian tribes in the 2nd century BC, the area was formally ruled by the Maru dynasty, starting with the Raju Maru from around 500 AD, ruling from the ancient capital of Bharmour, which is located from the town of Chamba.Sharma & Sethi (1997), p.34 In 920, Raja Sahil Varman (or Raja Sahil Verman) shifted the capital of the kingdom to Chamba, following the specific request of his daughter Champavati (Chamba was named after her). From the time of Raju Maru, 67 Rajas of this dynasty ruled over Chamba until it finally merged with the Indian Union in April 194 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Srinagar
Srinagar (English: , ) is the largest city and the summer capital of Jammu and Kashmir, India. It lies in the Kashmir Valley on the banks of the Jhelum River, a tributary of the Indus, and Dal and Anchar lakes. The city is known for its natural environment, gardens, waterfronts and houseboats. It is known for traditional Kashmiri handicrafts like the Kashmir shawl (made of pashmina and cashmere wool), and also dried fruits. It is the 31st-most populous city in India, the northernmost city in India to have over one million people, and the second-largest metropolitan area in the Himalayas (after Kathmandu, Nepal). Origin of name The earliest records, such as Kalhana's ''Rajatarangini'', mentions the Sanskrit name ''shri-nagara'' which have been interpreted distinctively by scholars in two ways: one being ''sūrya-nagar'', meaning "''City of the Surya''" (trans) ''"City of Sun''" and other being ''"The city of "Shri''" (श्री), the Hindu goddess of wealth, meaning "' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Veshaw River
The Veshaw River is a major tributary to the River Jhelum located in Kulgam District in the Kashmir Valley in the union territory of Jammu and Kashmir, India. It originates in the Pir Panjal Range and forms a waterfall at Aharbal. Course The river originates from a oligotrophic lake Kausarnag located at an elevation of 3,962.4 metres above sea level in District Kulgam. The river forms a water fall in Aharbal and passes through Nehama,Adigen, Laisoo, Gudder, Brazloo, Ashmuji, Kelam, Nawapora, Qaimoh and joins with river Jehlum at Sangam. Flash floods In year 2014 flash floods, Veshaw Nallah washed away various residential houses in villages Laisoo, Ardigatno, Gund Kelam Kulgam etc. Also hundreds of square kannals(area) of horticultural as well as agricultural land washed away in Village Laisoo Kulgam. The Veshaw Nallah is considered one of the dangerous tributary of Jehlum River because fast flow and frequent flash floods. See also *Kausar Nag * Aharbal *Mughal Ro ... [...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] |
Jhelum River
The Jhelum River (/dʒʰeːləm/) is a river in the northern Indian subcontinent. It originates at Verinag and flows through the Indian administered territory of Jammu and Kashmir, to the Pakistani-administered territory of Kashmir, and then into the Pakistani province of Punjab. It is the westernmost of the five rivers of the Punjab region, and flows through the Kashmir Valley. It is a tributary of the Chenab River and has a total length of about . Etymology Anjum Sultan Shahbaz, a Pakistani author, recorded some stories of the name Jhelum in his book ''Tareekh-e-Jhelum'' as:''Many writers have different opinions about the name of Jhelum. One suggestion is that in ancient days Jhelumabad was known as Jalham. The word Jhelum is reportedly derived from the words Jal (pure water) and Ham (snow). The name thus refers to the waters of a river (flowing beside the city) which have their origins in the snow-capped Himalayas.''However, some writers believe that when Mughal princ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1905 Kangra Earthquake
The 1905 Kangra earthquake occurred in the Kangra Valley and the Kangra region of the Punjab Province (modern day Himachal Pradesh) in India on 4 April 1905. The earthquake measured 7.8 on the surface wave magnitude scale and killed more than 20,000 people. Apart from this, most buildings in the towns of Kangra, Mcleodganj and Dharamshala were destroyed. Background The calculated epicenter of the earthquake lies within the zone of thrusts along the front of the Himalayas formed by the continuing collision of the Indian plate into the Eurasian plate. Underthrusting of the Indian subcontinent beneath Tibet along a 2,500 km long convergent boundary known as the Main Himalayan Thrust has resulted in the uplifting of the overriding Eurasian Plate thus, creating the long mountain range parallel to the convergent zone. Earthquake characteristics The magnitude 7.8–7.9 earthquake struck the western Himalaya in the state of Himachal Pradesh at an estimated depth of 6 km ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2005 Kashmir Earthquake
The 2005 Kashmir earthquake occurred at on 8 October in Pakistani-administered Azad Kashmir. It was centred near the city of Muzaffarabad, and also affected nearby Balakot in Khyber Pakhtunkhwa and some areas of Indian-administered Jammu and Kashmir. It registered a moment magnitude of 7.6 and had a maximum Mercalli intensity of XI (''Extreme''). The earthquake was also felt in Afghanistan, Tajikistan, India, and the Xinjiang region. The severity of the damage caused by the earthquake is attributed to severe upthrust. Over 86,000 people died, a similar number were injured, and millions were displaced. It is considered the deadliest earthquake in South Asia, surpassing the 1935 Quetta earthquake. Earthquake Kashmir lies in the area of collision of the Eurasian and Indian tectonic plates. The geological activity born out of this collision, also responsible for the birth of the Himalayan mountain range, is the cause of unstable seismicity in the region. The United States Geolo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surface Rupture
In seismology, surface rupture (or ground rupture, or ground displacement) is the visible offset of the ground surface when an earthquake rupture along a fault affects the Earth's surface. Surface rupture is opposed by buried rupture, where there is no displacement at ground level. This is a major risk to any structure that is built across a fault zone that may be active, in addition to any risk from ground shaking. Surface rupture entails vertical or horizontal movement, on either side of a ruptured fault. Surface rupture can affect large areas of land. __TOC__ Lack of surface rupture Not every earthquake results in surface rupture, particularly for smaller and deeper earthquakes. In some cases, however, the lack of surface effects is because the fault that moved does not reach the surface. For example, the 1994 Northridge earthquake had a moment magnitude of 6.7, caused major damage in the Los Angeles area, occurred at below the Earth's surface, but did not cause surface ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colluvial Wedges
Colluvium (also colluvial material or colluvial soil) is a general name for loose, unconsolidated sediments that have been deposited at the base of hillslopes by either rainwash, sheetwash, slow continuous downslope creep, or a variable combination of these processes. Colluvium is typically composed of a heterogeneous range of rock types and sediments ranging from silt to rock fragments of various sizes. This term is also used to specifically refer to sediment deposited at the base of a hillslope by unconcentrated surface runoff or sheet erosion. Location Colluviation refers to the buildup of colluvium at the base of a hillslope.Jackson, JA, J Mehl, and K. Neuendorf (2005) ''Glossary of Geology'' American Geological Institute, Alexandria, Virginia. 800 pp. Goodie, AS (2003) ''Colluvium'' in A. S. Goodie, ed., pp. 173, Encyclopedia of Geomorphology Volume 1, A–I. Routledge, New York, New York. 1200 pp. Colluvium is typically loosely consolidated angular material located at t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
