According to researches by the experts in International Institute of Earthquake Engineering and Seismology, and based on geological and historical data, the
Engineer Sahar Amirinezhad, a post
graduate of Mines Department of Tehran University, who has written a Thesis,
supervised by Dr Mehdi Zare'i, head of the International Institute of Earthquake Engineering and
Seismology, said in an interview with Thesis reporter of ISNA: Working on the
risks of tsunami in Caspian Sea borders, we used a model simulating the
conditions of the Caspian Sea and its potentials of originating a tsunami.
Following this model we can then proceed in zoning the tsunamis risk on the
borders of the sea. In the preliminary studies it was revealed that the
She added: There is a considerable
difference of depth between the northern, central and southern parts of the
Amirinezhad pointed out to the geological configuration of the sea bed in the Caspian Sea and its earthquake potentials and added: From a seismotectonic point of view, the Caspian Sea is located in the southern Caspian tectonic belt area and coincides with the undersea mountain of Sert and is connected from the other side to the Upsheron region in Armenia and thus creates a huge difference in depths of this sea.
She asserted: In this model the
seismotectonic impact of activation of this earthquake fault in the Caucasian
Although tsunamis with less tall waves would cause less damage compared to ocean tsunamis , but considering the population density in cities bordering the Caspian Sea and regarding the built up areas and strategic oil related structures very close to the sea, the risk of tsunamis in this area should be taken seriously.
Amirinezhad insisted that historical
evidence supports the seriousness of tsunamis; these are the report of a
tsunamis on 8 July 1895 in Turkman port in
She asserted: Considering the
difference if depth and the phenomenon of land sliding on the sea bed, are other
factors responsible for creating tsunamis. This is more probable in the middle
Amirinezhad said to ISNA: According
to statistics, 58 percent of tsunamis have occurred in the Pacific Ocean, 25
percent in Mediterranean Sea, 12 in
She pointed out that the time interval between an earthquake and the waves of tsunami is between 5 to 6 hours and said: According to the tsunami zoning maps, the borders of the sea should be free from building and population and there should be online alarm systems connected to the world's seismotectonic centres which can in fact reduce the risk and damage. Building barriers and dams, with a height about the double of the wave height could also reduce the damages which could be brought about by tsunami.
... Payvand News - 10/31/07 ... --