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  • Seismic hazard high in Tashkent

    Times of Central Asia , Kyrgyzstan
    Oct 22 2004

    Seismic hazard high in Tashkent
    Topic: Environment
    Country: Uzbekistan
    Date: 22-10-2004 07:09
    Source: TCA

    TASHKENT (TCA). The Uzbek capital recently hosted an international
    seminar on seismic safety of Tashkent which gathered more than 70
    experts from government, non-governmental, and research institutions
    of Uzbekistan, Tajikistan, Kazakhstan, and the United States.
    Organized by the Uzbek ecological association Hayet and GeoHazards
    International through USAID's funding, the seminar aimed at combining
    efforts to reduce the seismic hazard of Tashkent.



    According to Kahhar Abdullabekov, director of the Uzbek Seismology
    Institute, earthquakes measuring up to 7.5 on the Richter scale are
    possible in Uzbekistan. The activity of tectonic movements in
    Uzbekistan has increased since the late 1990s. Strong earthquakes
    occurred in Andizhan in 2002 and in Kashkadarya in 1998.



    Pulat Abdullakhanov of the Uzbek Red Crescent Society spoke about his
    organization's measures to prepare the citizens for possible
    earthquakes. In his words, the Uzbek Red Crescent Society can quickly
    set a field camp for 600 people. They also teach first aid skills to
    the citizens. Since 2000, 50,700 people (including 9,100 residents of
    Tashkent) have attended first aid courses. First aid groups have been
    formed at 975 companies and organizations.



    "In two makhallyas (neighborhoods) in Tashkent and eight makhallyas
    in Tashkent province we are implementing a pilot project teaching
    people to give first aid to victims of natural disasters,"
    Abdullakhanov said.



    A representative of the Tashkent department of the Emergency Ministry
    said they coordinate the actions of the rescue and technical services
    in case of an earthquake. In 449 makhallyas they have conducted
    explanatory work and established rescue teams.



    According to experts, a destructive earthquake in Almaty could kill
    75,000 of 1.5 million residents of Almaty, 55,000 of 1.1 million
    people in Dushanbe, and 45,000 of 2.2 million residents of Tashkent.
    It is necessary to prepare citizens for natural and technogenic
    disasters, thinks expert Vitaly Khalturin. In his words, an
    earthquake in Kyoto, Japan, caused the largest economic damage in
    history - US 0 billion, but killed only about 6,000 city residents
    (which was due to the high level of preparedness for possible
    earthquakes). The destructive earthquake in Iran in December 2003
    took the lives of 43,000 people because they did not know the rules
    of behavior and rescue in an earthquake.



    "An earthquake in Spitak, Armenia, in 1988 killed 67% of the city
    residents, the 1949 earthquake in Ashgabat killed 70,000 people, and
    16,000 died in an earthquake in Istanbul in 1999," said Khalturin. In
    his opinion, it was corruption that played its negative role in the
    severe consequences of these earthquakes. Buildings were constructed
    according to unacceptable design projects, and without the geological
    structure of this or that territory in mind. Thefts of building
    materials at construction sites resulted in a bad quality of
    buildings.



    Experts said that an earthquake measuring 8 on the Richter scale
    would destroy non-earthquake-proof buildings, seriously damage
    standard-design buildings, and slightly damage earthquake-resistant
    buildings. Today 39% of all apartment buildings in Tashkent are
    large-panel buildings and accommodate 35% of the city residents.
    Brick buildings make up 30% of all residential houses and are home to
    28% of Tashkent's citizens.



    According to experts, more than 25% of multi-story apartment
    buildings in Tashkent were built before 1958 and do not meet today's
    seismic resistance norms. More than 12% of residential houses and
    non-residential buildings consist of vulnerable skeleton panels.
    Tashkent also has industrial enterprises that might cause ecological
    hazards in case of earthquakes. The 167-meter high Charvak dam is
    located 70 kilometers from Tashkent. If destroyed, the dam will
    release water that will flood a significant part of the city. An
    underground nuclear reactor of a Tashkent's research institute is
    another potential hazard for the city.



    More than 25% of Tashkent's hospitals, schools, and kindergartens are
    vulnerable to earthquakes because they were built on the subsided
    soil which makes up more than 70% of the city area. The basements of
    many buildings have subsided due to the leakage of water from the hot
    and cold water pipeline systems and sewer systems.



    The seminar participants came to the conclusion that Tashkent's
    citizens, authorities, companies and organizations have poor
    knowledge about seismic hazards and their vulnerability to natural
    and technogenic disasters. It is necessary to teach people how to act
    in emergency situations like earthquakes. The seismic hazard map
    prepared in 1977 does not meet the present-day requirements.



    By the way, an earthquake that happened at 5:00 a.m. on 11 October
    2004 (several hours before the seminar's beginning) measured 2 on the
    Richter scale and its epicenter was 210 kilometers from Tashkent, in
    Kyrgyzstan's territory.
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