Thursday, May 31, 2007

EARTHQUAKES ON THE RISE IN SIKKIM


The chance of a major earthquake hitting Gangtok,Singtam and Mangan is high.
Gangtok: Frequent tremors in Sikkim have struck fear in the minds of the people.Though the magnitude was not much, continuous collusion between the Tibet and the European Plates, potentials for earthquakes have increased in the Zone V areas of the North East with Sikkim bearing the maximum brunt of it,said the Met department.
According to the Seismological division of the Meteorological department,the Center has prepared a report on the seismic hazards and the microzonations atlas of the Sikkim Himalaya, also known as the zone five area of the earthquake that can have devastating impact on the Sikkim.
The chains of the quakes from May 20-28 in the Sikkim recorded 14 tremors with a mild shock of the.4 to 1.1amplitude.And, its impact will be double once converted to a Ritcher scale.
The highest amplitude of the 2.7 was recorded on May26 with three shocks.On May 20, another three shocks recorded 2.5 amplitude, that is 5 on the Ritcher scale.
The Met department said the epicenter was in the west-north western directions of the Sikkim and the location was the somewhere between Dzongri and the Narsingh peak at the height of the 5,858 meter in the Tibet plate near Rontchungchu.
According to K.Sitaram,director of the Met office,it is an interpolate earthquake’s feature on the rock.He said the Met offices in Tadong & Balwakhani,Gangtok recorded three shocks on May20,another three on the May21 and two more on the May22 and one each in May 23,24,and 28 with the location being the same.
He said the entire stretch from Mangan to Gayzing and Jorethang to Assam-Linzey falls under zone IV measuring tremors of 3 and 5 on the Ritcher scale,but the chance of major earthquake is in Gangtok,
Singtam and the Mangan which are the most vulnerable because of their proximity to the Zone V of the North-East Himalayan plate, where it clashes with the Tibet plate and the Eurasian plate, there by penetrating the maximum heat and impact.