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M5.5 Upper Tsangpo Earthquake, 2003


18 August 2003


NE of Dagmo, Xizang


09:03:02 UTC (17:03:02 CCT)


29.547 N (ISC)


95.562 E (ISC)


29.0 kms (ISC)


Mw 5.5 (NEIC; HRV)

Additional Info

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A moderate earthquake struck the Upper Tsangpo Valley in eastern Tibet, close to the border with India, on 18 August 2003 at 17:03 PM local time. It had a magnitude of Mw=5.5 and was felt in parts of Nyingchi prefecture resulting in one death and minor damage.

The earthquake was centred 14.2 kms NE of Dagmo (Xizang), China,
35.2 kms NE of Medog
(Xizang), China,
47.9 kms ESE of Namche Barwa Peak
(Xizang), China,
57.6 kms WSW of Sumzon
(Xizang), China,
72.5 kms NE of Geling (Arunachal Pradesh), India
116 kms NNW of Chibuni (Arunachal Pradesh), India
132 kms NNE of Gasheng (Arunachal Pradesh), India
168 kms N of Pasighat (Arunachal Pradesh), India,
239 kms NNE of Dibrugarh (Assam), India

At least one person was killed in a landslides in Medog County. One person was injured in Medog County and 5 in Bomi County. Several buildings were damaged in Nyingchi prefecture (Xizang), China. Warehouses were also damaged in Bomi and Medog counties. Many aftershocks were experienced in the epicentral region. Several landslides blocked the Sichuan-Tibet Highway in Bomi County. More than 4,800 cubic metres of mud and rock covered some sections of the highway and a 2-kilometre section of the road was completely destroyed by rock falls. The highway was cleared two days later and was opened to traffic. No casualties or injuries were reported from this earthquake. The effects of this earthquake in adjoining parts of Arunachal Pradesh and Assam in India are unknown.

01) National Earthquake Information Centre (NEIC/PDE), Golden, USA.
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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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: 21 Feb 2008 | Website Disclaimer

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