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A
moderate earthquake struck the Bhutan
Himalayas on 24 February 2006 at 02:04
AM Bhutan local time. It had a magnitude of
Mw=5.8 and caused some damage to
property near the epicentre.
This is the strongest earthquake in Bhutan
since 2003 and one of the largest in the country's history. An aftershock with a magnitude of Mb=5.1, was felt within
minutes in the same region.
The earthquake was centred 19.3 kms
SSW of Kangpar, Bhutan,
29.1 kms NE of Darrang (Assam), India,
37.3 kms SSE of Tashigang Dzong, Bhutan,
62.4 kms SE of Shongar Dzong, Bhutan,
68.4 km SSW of Tawang (Arunachal Pradesh), India,
92.2 kms N of Guwahati (Assam), India,
204 kms ESE of Thimphu, Bhutan.
In south-east Bhutan,
nearer to the epicentre, it was strongly felt at Dewathang,
Samdrup Jongkar and in the adjoining areas. At least 239
houses were damaged in the gewogs of Bartsham (20), Bidung (11),
Kangpara (35), Kanglung (5), Phongmey (33), Radhi (17), Samkhar
(22), Shongphu (15), Thrimshing (20), Udzorog (20), Yangneer (41)
in the Trashigang area. The damage was the severest in the Udzorog
gewog.
Tremors were
felt for close to 6-seconds in some
parts of Bhutan, including the capital, Thimphu. In Thimphu, it
was strong enough to wake up a few people. In India, this
earthquake was felt at Bomdila and Itanagar in Arunachal Pradesh,
at Dhubri and Guwahati in Assam, Shillong in Meghalaya as well as
in parts of Nagaland.
Within 3-minutes, a Mb=5.1 aftershock was felt at 02:07 BTT (20:07
UTC). This earthquake was centred 11.1 kms N of Gobarigaon (Assam),
India and 30 kms SSW of Kangpar, Bhutan. This aftershock was felt at
Dewathang, Samdrup Jongkar and in the adjoining
areas.
Tremors were experienced at Thimphu in Bhutan while in India, it was
felt at Dhubri and Guwahati in Assam and at Itanagar in Arunachal
Pradesh.
It was also felt as far as Sylhet
in eastern Bangladesh. |
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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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