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M4.6 Nambu Earthquake, 2007

Date:

18 May 2007

Epicentre:

Near Nambu, Sikkim

Time:

12:40:02 UTC (18:10:02 IST)

Latitude:

27.302 N (NEIC)

Longitude:

88.159 E (NEIC)

Depth:

21.1 kms (NEIC)

Magnitude:

Mb 4.6 (NEIC), 4.9 (GSR)

Additional Info


 

Map Disclaimer


A light earthquake struck the Sikkim Himalayas on 18 May 2007 at 18:10 PM local time resulting in some panic in the state of Sikkim, India. It had a magnitude of Mb=4.6.

The earthquake was centred in the vicinity of the village of Nambu (Sikkim), India,
NNE
5.7 kms N of Dentam (Sikkim), India,
13.2 kms WNW of Ringchingpong (Sikkim), India,
20.9 kms E of Chyangthapu (Mechi zone), Nepal,
21.4 kms NW of Naya Bazaar (Sikkim), India,
31.1 kms NNW of Darjeeling (West Bengal), India,
40.5 kms NW of Kalimpong (West Bengal), India,
45.3 kms W of Gangtok (Sikkim), India,
49.6 kms NNE of Illam (Mechi zone), Nepal,
69.2 kms NNW of Shiliguri (West Bengal), India,
103 kms NNW of Jalpaiguri (West Bengal), India,
128 kms NE of Biratnagar (Kosi zone), Nepal.

Tremors from this earthquake were felt in many parts of Sikkim including the capital, Gangtok. The earthquake was felt at Ranka, Rangpo, Ranipool and Singtam. At Nam Nang many people ran outdoors in panic. In Gangtok, it was felt for 3-4 seconds and many people went outdoors. The earthquake was also felt in adjoining parts of West Bengal including in Darjeeling and Mirik.

The strongest earthquake in this region since a Mw=6.3 in 1980 was the Mw=5.3 Mana earthquake on 14 February 2006 that killed 2 people and damaged many buildings across the state. The earthquake on 18 February 2007 was the second tremor within a short span of 48-hours to have occurred in this immediate region and followed a Mb=4.0 earthquake that occurred on 16 May 2007 in eastern Nepal, along the Nepal-Sikkim border. These two earthquakes were then followed by the much stronger M5.0 Singyang earthquake that occurred on the evening of 20 May 2007.


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.

Page Citation
Information on this page may be reproduced in print or electronically but it is requested that a citation be given to this website in the form of a link i.e. "www.asc-india.org".

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

Amateur Seismic Centre, Pune,