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Diamer Basha Dam design is safe against seismic activity

Lahore, March 28, 2013 (PPI-OT): A spokesperson of the Pakistan Water and Power Development Authority (WAPDA) has clarified a news item appeared in a section of the Press on March 27, 2013, wherein the Director General of the Geological Survey of Pakistan had reportedly said that Diamer Basha Dam is located on a fault line where an earthquake with a magnitude of 9 can occur.

The spokesperson has said that the contention made by the Director General Geological Survey of Pakistan in the news item is not correct. Detailed geological investigations at the site of Diamer Basha Dam Project were carried out. Main Mental Thrust fault (MMT) is at the distance of 40 Kilometer from the dam site and main Karakoram thurst fault is about 100 Kilometer from the location.

The spokesperson said that all the available earthquake record from the various formations was obtained and studied. A micro-seismic network of ten stations was installed in a diameter of 40 Kilometer around the dam site and has been recording data for the last 6 years. Two strong motion seismic accelero graphs are also operative at dam site for the last 11 years.

The detailed design studies were carried out by a consortium of experienced/experts of international and local consultants. The design has been later on reviewed by a seismic expert from Switzerland. An international Panel of Expert (POE) has additionally reviewed the seismic parameters of the design.

The dam has been designed for Maximum Credible Earthquake (MCE) 0.46 g and Operational Basis Earthquake (OBE) 0.22 g. The dam is safe for the above said parameters. Therefore, the apprehensions of the Director General Geological Survey of Pakistan are not based on facts, the clarification concluded.

For more information, contact:
Muhammad Abid Rana
Director Public Relations
Water and Power Development Authority (WAPDA)
G-32, WAPDA House, Lahore
Tel: +9242 9920 2633 and +9242 9920 2211 -2033 -2029
Cell: +92333 445 8293
Email: mabidrana@gmail.com

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