Cloud shapes may predict earthquakes

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Cloud shapes may predict earthquakes

Ujjain-born Varahamihira (505-587 A.D.) is best known for Pancha-Siddhantika (The Five Astronomical Cannons), a compendium of Greek, Egyptian, Roman and Indian astronomy, and Brihat Samahita, which is considered a seminal text on ancient Indian astronomy and astrology.

One particular reference in the Brihat Samahita translated into English states that one week before a quake,
... Quote:
huge clouds resembling blue lily, bees and collyrium in colour, rumbling pleasantly and shining with flashes of lightning, will pour down slender lines of water resembling sharp clouds.

An earthquake of this circle will kill those that are dependent on the seas and rivers; and it will lead to excessive rains.

Incidentally, while a heavy ice-rain disrupted rescue efforts in Pakistan, similar rains were experienced after the devastating Latur earthquake too in 1993.

According to Shou, earthquake clouds are formed when underground water is converted into water vapour by the heat generated in the area of the epicentre, a fault rock which is undergoing constant stress and friction.

Depending on the manner in which this vapour escapes to the surface and rises through the atmosphere, it forms a cloud, taking peculiar shapes of a snake, wave, feather or a lantern.

Bhavsar who has done doctoral work on the Vedas and worked at the Deccan College, Bhandarkar Oriental Research Institute and University of Pune's department of space sciences, emphasised that natural phenomena are apparently discrete but otherwise continuous and require a non-linear, multi-modal and multivariate approach for their understanding.

Times of India
By netchicken: posted on 12-10-2005

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