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    Posted June 12, 2010 by
    COLOMBO, Sri Lanka
    This iReport is part of an assignment:
    Severe weather

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    A tsunami warning has been issued on Sri Lanka following the earthquake of  magnitude 7.7 near the Nicobar Islands in India.


    Coastal area residents are warned to be vigilant.



    Meanwhile, the Pacific Tsunami Warning Centre too  has issued an alert that an earthquake had occurred and issued a tsunami watch  alert in the region as follows:


    A tsunami watch is in effect for: India/ Indonesia  / Sri Lanka / Myanmar/ Thailand  / Malaysia


    For other areas of the Indian  Oceanregion...this message is for Information only at this  time.


    This bulletin is issued as advice to government  agencies. Only national and local government agencies have the authority to make decisions regarding the official state of alert in their area and any  actions to be taken in response.


    An earthquake has occurred with these preliminary  parameters


    Origin time        - 1927z 12 June 2010


    Coordinates      - 7.7 North   91.8 Eeast


    Location           - Nnicobar Islands  / India  region


    Magnitude        - 7.6


    Evaluation: Earthquakes of this size have the  potential to generate a destructive local tsunami and sometimes a destructive  regional tsunami along coasts located usually no more than a thousand kilometers from the earthquake epicenter. Areas further from the epicenter could experience  small sea level changes and strong or unusual coastal currents.



    However - it is not known that a tsunami was  generated. This watch is based only on the earthquake evaluation. Authorities in the  region should take appropriate action in response to this possibility. The  watch will not expand to other areas of the Indian Oceanunless  additional data are received to warrant such an expansion, the report adds.

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