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M6.2 Off South Sentinal Island Earthquake, 2008


10 August 2008


WSW of South Sentinal Isl


08:20:32 UTC (13:50:32 IST)


11.065 N (NEIC)


91.843 E (NEIC)


20 kms (NEIC)


Mw 6.2 (NEIC), 6.1 (HRV)

Additional Info


Map Disclaimer

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 centre
d 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.

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

Page Citation
Information on this page may be reproduced in print or electronically but it is requested that a citation be given to this website in the form of a link i.e. "www.asc-india.org".

Map Disclaimer
International boundaries of India (especially Arunachal Pradesh, Jammu & Kashmir, Himachal Pradesh and Uttarakhand) on the 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).

Page Updated: 13 Aug 2008 | Website Disclaimer

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