Geograpghy

Cyclone warnings

The four stages of cyclone warnings in India are: The First Stage warning Pre Cyclone Watch, issued 72 hours in advance. It contains an early warning about the development of a cyclonic disturbance in the north Indian Ocean, its likely intensification into a tropical cyclone and the coastal belt likely to experience adverse weather. The second stage …

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Mount Etna Volcano

Mount Etna Volcano Mount Etna is Europe’s highest and most active volcano outside the Caucasus. Mount Etna is an active stratovolcano on the east coast of Sicily, Italy. The last major eruption was in 1992. The volcano lies above the convergent plate margin between the African Plate and the Eurasian Plate.  Mount Etna is in an almost constant state of activity. United Nations …

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Cyclone Phethai

Cyclone Pethai has emerged as a deep depression in the Bay of Bengal around 900 kms off Chennai on 15 December 2018.  It was expected to bring heavy rainfalls in the coastal areas of north Tamil Nadu, Andhra Pradesh, Chhattisgarh and Odisha.  

Tsunami

Tsunamis are large waves that approach crashing on coasts due to seafloor movement, majorly associated with landslides or earthquakes. The word “tsunami” gets its name from the Japanese “tsu” means harbor and “nami” means wave. Tsunami is chain of huge waves created by disturbance created underwater. These waves are normally associated with earthquakes taking place …

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Mahanadi River

Mahanadi is major river in East Central India. It drains an area of around 141,600 square kilometres and has total course of 858 kilometres. It flows through Chhattisgarh and Odisha. It originates from highlands of Chhattisgarh through collection of array of streams and reaches Bay of Bengal. Its left bank tributaries are Shivnath, Mand, Ib, Hasdeo …

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Blood Moon

  Total lunar eclipses are sometimes called blood moons because of the reddish orange glow the moon takes on. The word “eclipse” means to obscure. When the moon passes between the Earth and the sun, it’s called a solar eclipse. When the Earth passes between the sun and the moon, it is a lunar eclipse. The Moon …

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El-Nino

El Nino: The El Nino refers to a cyclical warming of the Central and Eastern Equatorial Pacific that frequently corresponds to a drought in India. The warming of ocean causes huge changes in wind directions which bring less rain to south-east Asia and Indian subcontinent, while increasing rain in other parts of the world. La …

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