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A strong
earthquake (M6.0-6.9 termed as "strong") occurred in the eastern Bay of Bengal
to the west of South Sentinal Island, India, on
10 August 2008 at 13:50
PM local time. It had a magnitude of
Mw=6.2
and was felt in parts of the Andaman Islands.
Tremors were also felt along the east coast of India.
The earthquake on was centred
42 kms WSW of South Sentinal Island, India,
67 kms WNW of Jackson Creek (Little Andaman Island), India,
91.3 kms WNW of Hut Bay (Little Andaman Island), India,
92.1 kms SW of Jahaj (Rutland Island), India,
121 kms SW of Port Blair (South Andaman Island), India,
236 kms NNW of IAF Malacca (Car Nicobar Island), India,
499 kms NNW of Campbell Bay (Great Nicobar Island), India,
717 kms NNW of Banda Aceh (Aceh, Sumatra), Indonesia,
1219 kms SE of Bhubaneswar (Orissa), India,
1275 kms E of Chennai (Tamil Nadu), India.
If you felt these
events, please take the time to fill out a felt report questionnaire.
Tremors from this earthquake
strongly felt in the
Andaman Islands where people rushed outdoors in panic. Power
supply was temporarily disrupted as a result of the earthquake
that lasted between 6-10 seconds in Port Blair on South Andaman
Island. A crack developed on the Chatham Bridge and vehicular
traffic was suspended as a precautionary measure. The strongest
tremors were felt on Little Andaman Island including at Hut Bay.
Elsewhere in the archipelago it was felt at Rangat on Middle
Andaman Island. On the Indian mainland, mild tremors were also felt in parts of Chennai in
Tamil Nadu such as Besantnagar, Santhome and Tiruvanmayur. It was also felt for 2-3 seconds
in the L.B. Colony area of Vishakhapatnam in Andhra
Pradesh.
The event at 13:50 IST
on 10 August 2008 was the largest with a magnitude of Mw=6.2. It
was followed by two strong aftershocks on the same day; a Mb=5.4
at 14:57 IST
(09:27 UTC) and a Mw=5.7 (HRV, Mw=5.6 GS-NEIC) at 17:51 IST (12:21 UTC). This is the
strongest earthquake in this immediate region since a
Mw=6.6 earthquake near South Sentinal Island
on 27 June 2008. |
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References
01) National Earthquake Information
Centre (NEIC), Golden, USA.
02) Harvard Centroid Moment Tensor Solution (HRV),
Harvard, USA.
03) Macroseismic information has been compiled by the ASC from
reports by local media and local NGO personnel.
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International boundaries
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displayed map are from Google Maps. These do not conform to the
external boundaries of India recognized by the Survey of India. That
they are displayed on this page via Google Maps, is only for display purposes and
this should not be misinterpreted as an endorsement
of these boundaries by the Amateur Seismic Centre (ASC). |
