Swell waves hit coastal Kerala Sub: Geo Sec: Oceanography Context: Tension gripped the residents of coastal areas in Kerala on Saturday night after high swell waves pounded the coast What are Swell Waves? These waves are formed by an ocean swell; hence the name swell surge. Ocean swells occur not due to the […]

    Tsunamis Subject – Disaster Management Context – Tsunami threat recedes after undersea volcanic eruption in Pacific Concept – The word “tsunami” comprises the Japanese words ”tsu” (meaning harbour) and “nami” (meaning wave). A tsunami is a series of enormous waves created by an underwater disturbance usually associated with earthquakes occurring below or near […]