The continuing low-level seismicity in the vicinity of the Idukki Reservoir, Kerala, is interesting from the perspective of hydrologically triggered earthquakes. While the frequency of triggered earthquakes in the vicinity of a reservoir usually reduces with time and the largest earthquake usually occurs within a few years on the initial filling, the triggered seismicity in the proximity of the Idukki Reservoir seems to be showing a second, delayed peak, as the 1977 (M 3.5)

The Central Ground Water Board (CGWB) on Monday signed a contract with the Council of Scientific Industrial Research–National Geophysical Research Institute (CSIR-NGRI) to implement a pilot project

The International Centre for Integrated Mountain Development (ICIMOD)-organised international conference on Himalayan glaciers concluded in the capital today.

The risk of there not being enough water in the stream — the ‘hydrology risk’ — is the “single largest risk” that a small hydro project faces, says a study of the rating and analysis agency, ICRA.

The report of the Empowered Committee, though subject to condtions, was in favour of constructing a new dam to replace the existing one at Mullaperiyar, Chief Minister Oommen Chandy has said.

The nominee of the State on the committee, K.T. Thomas, had done his best to protect the interests of Kerala. He had expressed the views of Kerala in his dissent note and had listed six reasons for keeping the water level in the reservoir at 136 feet. The only objection was that he had not made any dissent on the finding that the dam was safe, Mr. Chandy said.

LUCKNOW: Once considered as an agent of salvation and lifeline of Lucknow, Gomti today is neither sacred nor clean.

CHENNAI: The five-member Supreme Court empowered committee on the Mullaiperiyar issue has emphasised on Tamil Nadu’s rights over the existing dam and all its waters, under the 1886 lease deed and t

Chief minister J. Jayalalithaa said on Saturday that the state government’s stand on the Mullaperiyar dam has been vindicated by the Supreme Court appointed empowered committee’s report, which vouched for the safety of the dam.

The five-member SC committee, headed by former Chief Justice of India A. S. Anand, had said “the dam is hydrologically, structurally and seismically safe” and asked Kerala to reconsider its decision to decommission the existing dam and build a new one.

Ground water levels are being measured four times a year during January, April/ May, August and November. The regime monitoring started in the year 1969 by Central Ground Water Board. At present a network of 14966 observation wells located all over the country is being monitored.

Setting at rest the controversy over the safety of the 116-year-old Mullaperiyar dam, the Empowered Committee, headed by the former Chief Justice of India A.S. Anand, has said it is “structurally and hydrologically safe, and Tamil Nadu can raise the water level from 136 to 142 feet after carrying out certain repairs.”

In its report submitted to the Supreme Court on Wednesday, the committee is understood to have said: “The dam is seismically safe.” Last year's earth tremors in that region “did not have any impact on the Mullaperiyar dam and the Idukki reservoir and there was no danger to the safety of the two dams.”

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