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M6.4
Chamoli
Earthquake, 1999 |
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Date: |
28
March 1999 |
Epicentre: |
SW of
Bangina, Uttarakhand |
Time: |
19:05:12
UTC (00:35:12 IST) |
Latitude: |
30.511 N (ISC) |
Longitude: |
79.421 E (ISC) |
Depth: |
22.9 kms (ISC) |
Magnitude: |
Mw=6.4 (NEIC) |
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Map Disclaimer |
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A
strong earthquake struck the Gharwal
Himalayas near Chamoli in Uttarakhand on 29 March 1999 at
00:35 AM local time. It had a magnitude of
Mw=6.4 and
resulted in damage & fatalities in the region.
The earthquake
was centred
6.1 kms SW of Bangina (Uttarakhand), India,
13.9 kms NNE of Chamoli (Uttarakhand), India,
14.5 kms WSW of Joshimath (Uttarakhand), India,
26 kms SSW of Badrinath (Uttarakhand), India,
49.3 kms NE of Rudraprayag (Uttarakhand), India,
73.7 kms NE of Pauri (Uttarakhand), India,
102 kms NNW of Almora (Uttarakhand), India,
134 kms ENE of Dehradun (Uttarakhand), India,
296 kms NE of Connaught Place, Delhi (Delhi), India.
If you felt this earthquake in India, Nepal or
Pakistan please let us know.
106 people were
killed and 453 were injured in the districts of Bageshwar, Chamoli,
Pauri Garhwal, Rudraprayag and Tehri Garhwal in Uttarakhand, India.
Two deaths were reported at Nakodar in Punjab and one at Ambala in Haryana. Damage (EMS
8) occurred at Chamoli, (EMS 7) at Agustmuni, Bairagna, Gopeshwar, Nandprayag, Pipalkoti & Tapowan,
(EMS 6) at Bhatwari, Dehradun, Devaprayag, Ghansali, Karnprayag,
Mussourie, Rudraprayag, Tehri, Ukhimath & Uttarkashi. Damage (EMS
5)
also occurred in Delhi where
a few modern
high-rise apartment buildings, such as
Tarang Apartments in the Patparganj area, suffered slight damage.
Shastri Bhavan also suffered some non-structural damage. The earthquake was felt at Gwalior in
Madhya Pradesh, at Shimla in Himachal Pradesh, at Jaipur in
Rajasthan, at Lucknow, Kanpur & Varanasi in Uttar Pradesh, at Srinagar in
Jammu & Kashmir, at Chandigarh and even as far as Pune in
Maharashtra.
Strong aftershocks
shook the region for several months, some of which were even
experienced as far as New Delhi. A magnitude 5.0 aftershock struck
the region on 31 March 1999, at 02:30 am
(local time / IST) injuring 50 people in Chamoli district. Many
damaged buildings collapsed at Maithana village and 20 houses
collapsed at Kotiyal village on the outskirts of Chamoli town. A
magnitude Mb=5.5 aftershock on the same
day at 22:54 IST was felt as far as New Delhi. 1 person was killed
and several were injured in Pipalkoti village, when a house
collapsed in a magnitude 4.8 aftershock that struck at 02:10 IST, on
1 April 1999.
Strong ground shaking occurred at Chamoli,
Gopeshwar and the neighbouring areas. Accelerographs maintained by
the University of Roorkee recorded a maximum peak horizontal ground
acceleration of 0.352 at Gopeshwar, 0.096g at Ukhimath, 0.063g at
Joshimath and 0.062g at Tehri. Gopeshwar was located 12.4 kilometres
from the epicentre. Strong ground shaking was also recorded in the
plains of north India. The Delhi Strong Motion Network (DSMA)
recorded 0.046g at Roorkee in Uttarakhand and 0.043g at Panipat and
0.014g at Baghpat in Haryana. Within the city of Delhi, a maximum
peak horizontal acceleration of 0.015g was recorded in East Arjun
Nagar, 0.011g at Lodi Road and 0.010g at Rafi Marg. |
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Abridged from:
Arlekar, J.N.,
Jain, S.K., Murty, C.V.R., Rajendran, C.P., Rajendra, K., and
Sinha, R., "Chamoli (Himalaya, India) Earthquake of 29 March
1999", EERI Special Earthquake Report, EERI Newsletter, 33, No. 7,
July 1999.
Martin. S., and W.
Szeliga, “A catalog of felt intensity data for 589 earthquakes in
India, 1636-2009”, Bulletin of the Seismological Society of
America, Bulletin of the Seismological Society of America, 100,
2, pp.
536-569, 2010
Pandey, Y., Dharmaraju, R., and Chauhan, P.K.S., "Estimation of
source parameters of Chamoli Earthquake, india", Proc. Indian
Acad. Sci. (Earth Planet Sci.), 110, No. 2, pp 161-169, June 2001. |
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