strong earthquake struck western parts
northern Sumatra, on 23 January 2003 at
16:51 PM local time. It had a magnitude of
MS=6.1 and was felt in parts of the sparsely populated Ngari
region causing minor damage.
The earthquake was centred
9.7 kms NE of Sembuang (Sumatra), Indonesia,
14.2 kms WSW of Penaron (Sumatra), Indonesia,
28.9 kms W of Jambo Campli (Sumatra), Indonesia,
46 kms WNW of Langsa (Sumatra), Indonesia,
68.4 kms NNE of Blangkejeren (Sumatra), Indonesia,
84.1 kms SSE of Lhokseumawe (Sumatra), Indonesia,
165 kms NW of Medan (Sumatra), Indonesia,
272 kms SE of Banda Aceh (Sumatra), Indonesia,
381 kms SSW of Phuket (Phuket), Thailand,
489 kms WNW of Kuala Lumpur, Malaysia.
This earthquake was felt strongly at at Medan
on Sumatra sending many people running
outdoors in panic. It was also felt at Langsa
and Pangkalanbrandan on Sumatra. Across the Malacca Straits, it
was felt in high-rise buildings at Kota Baharu and Petaling
Jaya in Malaysia for a few seconds. A
14-storey building was evacuated in Kota Baharu following the
tremor. Tremors were also felt
at Kuala Lumpur as well as the rest of
the Klang Valley, Kedah, Penang and Kelantan areas. Long period
effects were perceived as far as
high-rise buildings in Bangkok, Thailand. At
Phuket it was felt for close to 3-minutes.
It was also felt in the southern
province of Hat Yai, Thailand. Fishermen reported big waves in the
Andaman Sea off the Thai provinces of
Satun, Trang and Phuket just after the earthquake.
International Seismological Centre (ISC),
02) Macroseismic information has been compiled by
the ASC from reports by local media and local NGO personnel.
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