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M5.0 Singyang Earthquake, 2007


20 May 2007


Near Singyang, Sikkim


14:18:18 UTC (19:48:18 IST)


27.303 N (NEIC)


88.191 E (NEIC)


17.0 kms (NEIC)


Mb 5.0 (NEIC), 4.6 (GSR)

Additional Info


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A moderate earthquake struck the Sikkim Himalayas on 20 May 2007 at 19:48 PM local time resulting in some panic and minor damage in the state of Sikkim, India. It had a magnitude of Mb=5.0. A M3.5 aftershock on 23 May caused some anxiety but no damage and an M3.3 aftershock occurred on 26 May. Two persons were killed in an aftershock on 26 May.

The earthquake was centred in the vicinity of the village of Singyang (Sikkim), India,
kms NE of Dentam (Sikkim), India,
10.7 kms NW of Ringchingpong (Sikkim), India,
20.4 kms NW of Naya Bazaar (Sikkim), India,
24.1 kms ENE of Chyangthapu (Mechi zone), Nepal,
30.1 kms NNW of Darjeeling (West Bengal), India,
38.2 kms NW of Kalimpong (West Bengal), India,
41.9 kms W of Gangtok (Sikkim), India,
51.6 kms NNE of Illam (Mechi zone), Nepal,
68.7 kms NNW of Shiliguri (West Bengal), India,
103 kms NNW of Jalpaiguri (West Bengal), India,
131 kms NE of Biratnagar (Kosi zone), Nepal.

Tremors from this earthquake were felt in many parts of Sikkim including the capital, Gangtok. Minor cracks developed in some buildings in the Tashiding Monastry complex near in West Sikkim. People ran outdoors in panic and there was a short-lived power failure in Gezing, Jorethang, Namchi and in parts of the West Sikkim district. At Namchi, people remained outdoors for more than an hour in fear of another earthquake. Tremors were also felt at Pakyong, Rangpo, Ranka, Ranipool, Rhenok, Rongli and Singtam in the state. This earthquake was stronger than a Mb=4.6 event two days earlier. In adjoining parts of West Bengal it was felt at Darjeeling, Mirik, Kalimpong, Kurseong, Shiliguri, Sukhiyapokhri and Tadong. In Darjeeling, tremors were experienced for 3-4 seconds while in Shiliguri they lasted close to 10-seconds.

An Mb=3.5 aftershock occurred on 23 May at 23:11 local time and was centred along the Nepal-Sikkim border. It was felt in the districts of West and South Sikkim as well as in the capital, Gangtok. On 26 May a mild tremor was felt in the Ravangla area of South Sikkim at 11:00 local time. It triggered a mudslide that claimed the lives of two labourers at a construction site. Another minor aftershock of M?=3.3 occurred on 26 May at 15:58 local time. The earthquake on 20 May was the third and strongest earthquake in a sequence of tremors that have struck the Sikkim-Nepal border since 16 May 2007. On 16 May a Mb=4.0 earthquake occurred on the Nepal-Sikkim border. It was followed by the Mb=4.6 Nambu earthquake, named after the village closest to the epicentre, on 18 May 2007 that was strongly felt in much of the state.

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

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