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Author: user

2005 Delhi Bombings

Posted on October 15, 2025 by user

2005 Delhi bombings — Introduction On 29 October 2005, the national capital experienced a coordinated mass‑casualty attack that produced significant civilian loss and disruption. Three explosive devices detonated in crowded urban settings—two in commercial market areas and one on a public bus—resulting in dozens of fatalities and many more injured. The timing, shortly before a…

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2004 Dimapur Bombings

Posted on October 15, 2025 by user

2004 Dimapur bombings — Introduction On 2 October 2004, Dimapur experienced a pair of near-simultaneous explosive attacks that struck two densely used civilian locations during the morning period. The timing and selection of targets — a major transport node and a busy commercial market — indicate deliberate operational planning aimed at maximizing disruption and casualties…

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2004 Dhemaji School Bombing

Posted on October 15, 2025 by user

Introduction On 15 August 2004, during Indian Independence Day observances, a bomb detonated at a school gathering in Dhemaji, Assam, producing significant civilian casualties and shock to the local community. The attack resulted in the deaths of 18 people and numerous injuries; victims were predominantly young adolescents and accompanying family members, underscoring the civilian and…

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2003 Nadimarg Massacre

Posted on October 15, 2025 by user

Introduction On 23 March 2003 a small village in Pulwama district of Jammu and Kashmir became the scene of a lethal attack that resulted in multiple civilian fatalities among the region’s remaining Hindu minority. The incident was executed by militants associated with an Islamist extremist organisation and targeted an already vulnerable community that had largely…

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2002 Raghunath Temple Attacks

Posted on October 15, 2025 by user

Introduction The 2002 attacks on the Raghunath Temple in Jammu, executed as two separate fidayeen-style assaults, represent a targeted strike against a major religious site with longstanding historical significance. The temple, an established symbol of religious practice in the region, carries both cultural and devotional value for local Hindu communities; an attack on such a…

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2002 Mumbai Bus Bombing

Posted on October 15, 2025 by user

2002 Ghatkopar Bus Explosion — Introduction On the evening of 2 December 2002, an improvised explosive device detonated on a municipal bus at a busy suburban rail interchange in Mumbai, producing fatalities and a large number of injuries concentrated in the station area. The timing and placement of the device, in the rear of the…

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2002 Jaunpur Train Crash

Posted on October 15, 2025 by user

Introduction On 13 May 2002 a derailment near Jaunpur in Uttar Pradesh exposed a deliberate mode of rail sabotage in which essential track fastenings were removed to induce structural failure. Official inquiries attributed the proximate cause to targeted interference with the components that join and stabilize rail sections; this technical finding framed the incident not…

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2001 Jammu And Kashmir Legislative Assembly Car Bombing

Posted on October 15, 2025 by user

Introduction On 1 October 2001, a coordinated Islamist militant operation targeted the heart of regional governance in Jammu and Kashmir when assailants attacked the state legislative complex in Srinagar. The operation was conducted by a small, armed team affiliated with Jaish-e-Mohammed, employing suicide commando tactics and a vehicle-borne explosive device to breach the complex’s main…

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2001 Indian Parliament Attack

Posted on October 15, 2025 by user

Introduction The 13 December 2001 attack on India’s Parliament in New Delhi represented a deliberately symbolic strike against the heart of the country’s democratic institutions. Executed by a small team of armed intruders who reached the parliamentary complex, the incident tested the resilience of urban counterterrorism capabilities and exposed vulnerabilities in the protection of high-value…

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2000 Terrorist Attack On Red Fort

Posted on October 15, 2025 by user

Introduction On 22 December 2000 an armed assault at the Red Fort in New Delhi drew immediate national and international attention due to its location, timing and attribution. Reporting at the time attributed the operation to Lashkar-e-Taiba, a Pakistan–based militant organisation implicated in multiple cross‑border attacks. The incident resulted in the loss of life among…

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2000 Church Bombings Of South India

Posted on October 15, 2025 by user

Introduction The 2000 attacks on Christian places of worship in southern India constituted a coordinated campaign of violence that targeted church interiors across multiple states. Carried out by a small, organized extremist group, these incidents were not isolated criminal acts but a series of linked strikes with a clear sectarian focus. By attacking sacred spaces…

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1998 Coimbatore Bombings

Posted on October 15, 2025 by user

Introduction The February 1998 Coimbatore bombings represent a concentrated episode of urban terrorism that combined tactical coordination, politically symbolic targeting, and communal grievance. Multiple explosive devices were detonated across the city within a limited geographic radius, producing significant fatalities and injuries and disrupting daily life and local commerce. The pattern of attack—simultaneous strikes at distributed…

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1996 Lajpat Nagar Blast

Posted on October 15, 2025 by user

1996 Lajpat Nagar blast — Introduction On 21 May 1996 a bombing in the densely frequented Lajpat Nagar market in New Delhi resulted in multiple fatalities and dozens of injuries, striking a civilian commercial hub and producing significant public alarm. The attack occurred in close temporal proximity to another explosion in Dausa the following day,…

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1996 Dausa Blast

Posted on October 15, 2025 by user

1996 Dausa bus bombing — analytical introduction On 22 May 1996 an explosive device detonated on a public transport bus in the Dausa area of Rajasthan, producing significant fatalities and injuries and occurring almost concurrently with other attacks elsewhere in India. The timing placed the incident within a short temporal cluster of bombings in May…

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1993 Bowbazar Bombing

Posted on October 15, 2025 by user

1993 Bowbazar bombing — introduction The Bowbazar explosion of 16 March 1993 constitutes a discrete, well‑bounded incident in the study of urban violent events in India: it occurred in Bowbazar, a commercial district of Calcutta (Kolkata), on the night of 16 March 1993 and resulted in the confirmed deaths of 45 people. These three data…

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1993 Bombing Of Rss Office In Chennai

Posted on October 15, 2025 by user

Introduction The bombing of a Rashtriya Swayamsevak Sangh (RSS) office in Chennai on 8 August 1993 was a notable instance of communal-targeted violence in India during the early 1990s. The attack, which produced a significant civilian toll, occurred against a backdrop of heightened sectarian tensions nationally and regionally. As an incident directed at a political‑social…

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1993 Bombay Bombings

Posted on October 15, 2025 by user

1993 Bombay bombings — Introduction On 12 March 1993, a concerted series of explosives attacks struck multiple locations across Bombay, producing one of the deadliest urban terrorism incidents in post‑independence India. The coordinated nature of the strikes, executed within a single day, amplified their human cost and exposed acute vulnerabilities in urban security, crowd management…

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1991 Rudrapur Bombings

Posted on October 15, 2025 by user

1991 Rudrapur bombings — Introduction On 17 October 1991, Rudrapur—a town in what is today Uttarakhand—was the scene of a coordinated terrorist operation that used improvised explosive devices to strike civilian targets. The attack unfolded in two phases: an explosion at a crowded public performance and a follow-on blast near the medical facility receiving casualties….

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Woodlark Plate

Posted on October 14, 2025 by user

The Woodlark Plate is a small, nearly triangular tectonic block named for the Woodlark region, located immediately east of New Guinea and concentrated in the northern sector of the Woodlark Basin. Its spatial extent overlaps with, but does not encompass, the entire basin, reflecting a localized plate that occupies only the basin’s northern half. The…

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Weathering

Posted on October 14, 2025 by user

Introduction Weathering denotes the in situ breakdown and alteration of rocks, soils, minerals, wood and anthropogenic materials by environmental agents—principally water, atmospheric gases (notably O2 and CO2), solar radiation and biological activity—and is distinct from erosion in that weathering entails negligible transport of material while erosion involves its movement by water, ice, wind, waves or…

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Weathering#Chemical Weathering

Posted on October 14, 2025 by user

Introduction — Weathering Weathering denotes the on-site breakdown of rocks, minerals, soils, wood and man-made materials through interaction with water, atmospheric gases, sunlight and living organisms. The qualifier “in situ” emphasizes that weathering alters materials largely without substantial transport, distinguishing it from erosion, which removes and conveys disintegrated matter by agents such as running water,…

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Wave Cut Platform

Posted on October 14, 2025 by user

Introduction A wave-cut platform (also termed a shore platform, coastal bench, or wave-cut cliff) is a narrow, nearly level geomorphic surface produced by the erosive action of waves at the base of a sea cliff or along the shoreline of a bay, sea, or lake. It represents the abrasion and undercutting zone where persistent wave…

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Water Vapor

Posted on October 14, 2025 by user

Introduction — Water vapor Water vapor is the gaseous form of H2O and one of the principal phases of water within Earth’s hydrosphere, distinct from liquid water and solid ice. In the atmosphere it is generated chiefly by evaporation and boiling of liquid water and by sublimation of ice; under typical tropospheric conditions continuous evaporation…

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Water Distribution On Earth

Posted on October 14, 2025 by user

Introduction Earth’s hydrosphere is overwhelmingly saline: oceans and marginal seas, together with saline groundwater and saline endorheic lakes, constitute over 97% of planetary water. Fresh water represents only a small fraction of the total—on the order of 1%—so that the mass ratio of salt water to fresh water is roughly 50:1. Mean ocean salinity is…

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Volcano

Posted on October 14, 2025 by user

A volcano is the surface expression of a subsurface magmatic system: a conduit, vent, or fissure that links a magma reservoir to the exterior and permits the eruption of molten rock, fragmented pyroclasts and magmatic gases. On Earth the spatial pattern of volcanism is primarily governed by plate tectonics. Most volcanic activity is concentrated where…

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Volcano Tectonic Earthquake

Posted on October 14, 2025 by user

Introduction Volcano‑tectonic earthquakes are seismic events generated by the emplacement and movement of magma within the crust. As magma intrudes and migrates it perturbs the local stress field and modifies pore pressure, provoking brittle failure or slip on adjacent rock; these ruptures produce measurable seismic waves that record the subsurface magmatic processes. Such events therefore…

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Volcanic Winter

Posted on October 14, 2025 by user

Volcanic winter denotes a pronounced fall in global surface temperatures following a large, highly explosive eruption that emits abundant sulfur gases; the principal climatic agent is stratospheric sulfate aerosol, which raises planetary albedo and reduces the solar energy reaching the surface. Sulfur species (chiefly SO2 and H2S) must be lofted into the stratosphere, where they…

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Volcanic Rock

Posted on October 14, 2025 by user

Introduction Volcanic rocks are igneous lithologies generated directly by volcanic eruption, incorporating both effusive lava flows and the fragments ejected into the atmosphere during explosive activity. Among these products, ignimbrite records deposition from pyroclastic density currents (pyroclastic flows) and constitutes a principal facies of explosive eruptions. The loose fragments and their reworked accumulations—collectively termed pyroclastics—are…

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Volcanic Pipe

Posted on October 14, 2025 by user

Introduction A volcanic pipe, or volcanic conduit, is the preserved subsurface channel produced by a violent, deep-sourced eruption that excavates a narrow, high‑velocity pathway for magma and fragmented country rock. As a variety of diatreme, a volcanic pipe commonly appears in the rock record as a deep, steeply tapering cone of brecciated country rock and…

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Volcanic Explosivity Index

Posted on October 14, 2025 by user

Introduction — Volcanic Explosivity Index (VEI) The Volcanic Explosivity Index (VEI), developed in 1982 by C. G. Newhall and S. Self (USGS), is a semi‑quantitative ordinal scale designed to compare the size and explosiveness of volcanic eruptions and to assist in hazard assessment. Assignment of a VEI integrates measured tephra volume, observed eruption cloud (column)…

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Uvala (Landform)

Posted on October 14, 2025 by user

Introduction The uvala is a karst landform name that originated as a local toponym across parts of the Dinaric region (Slovenia, Croatia, Bosnia and Herzegovina, Montenegro and Serbia) to denote a closed depression. In geomorphological usage the term designates closed karst basins that are typically larger than individual sinkholes (dolines) and often display irregular, elongated…

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Universe

Posted on October 14, 2025 by user

Introduction The universe comprises the entirety of space and time and all entities and processes within them—every physical interaction, constant, and form of matter and energy—constituting a single spacetime manifold whose global properties are the object of cosmology. Contemporary cosmology locates the origin of space and time in the Big Bang, dated to 13.787 ±…

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Ultramafic Rock

Posted on October 14, 2025 by user

Introduction Ultramafic rocks are igneous or meta‑igneous lithologies dominated by dark, iron‑ and magnesium‑rich silicate minerals, typically comprising more than 90% mafic phases. They are chemically distinct from most other igneous rocks by their very low silica contents (SiO2 < 45%), high magnesium abundances (commonly MgO > 18%), elevated FeO, and characteristically low potassium concentrations,…

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Types Of Earthquake

Posted on October 14, 2025 by user

Introduction This chapter surveys earthquake phenomena by classifying event types, causal mechanisms, observational descriptors, measurement methods, and applied practices that constitute seismology and earthquake-hazard science. The classification distinguishes event sequences (foreshock–mainshock–aftershock), rupture styles and tectonic settings (e.g., blind thrusts, doublets, interplate and intraplate events, megathrusts), special categories defined by triggering or rupture behavior (remotely triggered,…

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Tsunami

Posted on October 14, 2025 by user

Introduction A tsunami is a sequence of water waves generated by the sudden displacement of a large volume of water—most commonly in oceans or large lakes. The term derives from the Japanese 津波, literally “harbour wave.” Unlike ordinary wind waves (produced by atmospheric forcing) or tides (driven by lunar and solar gravity), tsunamis result from…

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