5th quake in a month in Pal­ghar, govt on its toes

The Times of India (Mumbai edition) - - TIMES CITY - [email protected]­group.com

Mum­bai: Early on Satur­day, Pal­ghar felt tremors for fifth time in a month. For­tu­nately, like in the ear­lier four in­stances, the mag­ni­tude of the wee­hour earth­quake was not much—2.9 on the Richter scale.

To study what is caus­ing th­ese re­peated earth­quakes in Pal­ghar, In­dia Me­te­o­ro­log­i­cal Depart­ment (IMD) of­fi­cials plan to in­stall a seis­mo­graph in the area to get real-time up­dates tremors and mea­sure the shocks. Also, a team of IMD, along with state of­fi­cials, will un­der­take a sur­vey of the area on De­cem­ber 11 and 12.

“A seis­mo­graph will be placed next week and it will mon­i­tor earth­quakes for the next few months. Cur­rently, if the shocks are of a mag­ni­tude less than 2 on the Richter scale, the dis­tant seis­mo­graphs can­not mea­sure them ac­cu­rately. In Maharashtra, sta­tions like Mum­bai, Latur and Pune have seis­mo­graphs,” said K S Hos­a­likar, deputy direc­tor gen­eral of me­te­o­rol­ogy, ad­ding that IMD Mum­bai can mea­sure quakes that are of mag­ni­tude 3 and above on the Richter scale.

“The not-so strong tremors can be felt lo­cally, but not mea­sured as the waves do not per­co­late. That is why we want to place a ma­chine in Pal­gharto pick up small vi­bra­tions and know the fre­quency of the earth­quakes,” said Hoslaikar.

started with an earth­quake for Pal­ghar as the first tremor was felt on Jan­uary 1

July, a tremor of a 2.8 mag­ni­tude on the Richter scale oc­curred with its epi­cen­tre in Raigad. The earth­quake was felt in parts of Kalyan and Dom­bivli *Two tremors felt

The state is ex­pected to pro­vide all the lo­cal lo­gis­tics like a room for in­stal­la­tion of the ma­chine and trans­porta­tion. There al­ready is a seis­mo­graph ma­chine placed in the dis­trict but this time, the BMC want to place it at a dif­fer­ent lo­ca­tion, in the in­te­ri­ors.

Mean­while, the state gov­ern­ment has di­rected the col­lec­tor’s of­fice to take pre­cau­tion­ary mea­sures like spread­ing aware­ness on what needs to be done in case there is an earth­quake. “While th­ese earth­quakes with 2-3 mag­ni­tude may not be much dis­as­trous, but it can leave cracks in ‘kutcha’ houses,” said an IMD of­fi­cial. The Nov 11 quake left cracks in some houses

IMD of­fi­cials said that th­ese tremors are due to lo­cal crustal move­ments and are known as mi­cro ac­tiv­ity. Dr V Subra­manyan, a for­mer IIT Bom­bay pro­fes­sor who has con­ducted sev­eral earth­quake projects, said the quakes are not sur­pris­ing. “The west coast from north Konkan to Kanyaku­mari falls in seis­mic zone 3, which means it is earth­quake prone. This oc­curs owing to distri­bu­tion of seis­mic fea­tures like ge­o­log­i­cal faults and Mum­bai has quiet a few faults. Only earth­quake’s with a mag­ni­tude of 5 and above are known to cause dam­age to life and prop­erty,” he said.

Newspapers in English

Newspapers from India

© PressReader. All rights reserved.