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M4.3 Sasan Gir National Park Earthquake, 2011

Date:

12 November 2011

Epicentre:

SW of Sasan Gir, Junagadh

Time:

07:01:51 IST (12:31:51 UTC)

Latitude:

21.064 N (IMD)

Longitude:

70.519 E (IMD)

Depth:

9.9 kms (IMD)

Magnitude:

ML=4.3 (IMD)

Additional Info


Map Disclaimer


A light earthquake (M4.0-4.9 termed as "light") occurred in the Gir National Park region in Gujarat's Saurashtra region, India, on 12 November 2011 at 12:31:51 PM local time in India. It had a magnitude of ML=4.3. Three people were injured and damage occurred in the districts of Amreli and Junagadh in Gujarat. This event is the strongest aftershock from a Mw=5.0 earthquake in the same region in October 2011.

This earthquake was centre
d 9.4 kms NNW of Mathasulia (Gujarat), India,
14.5 kms SW of Sasan Gir (Gujarat), India,
24.4 kms NE of Veraval (Gujarat), India,
30 kms SSE of Mendharda (Gujarat), India,
50.7 kms S of Junagadh (Gujarat), India,
72.4 kms S of Dhoraji (Gujarat), India,
114 kms SE of Porbandar (Gujarat), India,
141 kms SSW of Rajkot (Gujarat), India,
306 kms SW of Ahmedabad (Gujarat), India.

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One person was badly injured after jumping from the first floor of a building in Virpur Gir in Talala taluka, Junagadh district. Another two injuries were reported, one each in Talala and Lohara Mahajan Wadi in Junagadh district. Elsewhere in the district, three wall collapses were reported from Sangodhra Gir. Objects were knocked off shelves, roof tiles were dislodged and cracks developed in many buildings in villages at Maliya Hatina, Keshod and Kodinar where people ran outdoors. Objects were also knocked off shelves and houses also developed cracks in Jalandhar Gir. A portion of the roof of the Panchayat office in Ramlechi Gir collapsed causing damage to furniture and electronic equipment. Minor damage occurred in the villages of Bhojdi, Borvav, Chitrod and Veerdi in the Talala taluka. In Amreli district, objects were knocked off shelves, roof tiles were dislodged and cracks developed in many buildings in villages in the Babra, Bagsara and Khamba Gir areas.

People were frightened by this earthquake in the Talala-Sasan Gir-Dhava Gir region. The power supply was disrupted. People ran outdoors at Dhava Gir and at the Kankai Mata Temple in central Gir. Telephone services were down due to planned engineering work at the local BSNL exchange in Talala and this communication outage added to the panic. Tremors lasted 30-seconds at Jaipur Gir. Strong tremors were also felt at Talala but no damage occurred. In the Talala taluka it was felt at Akolwadi, Bhalchel, Borvav, Chitravad, Dhava, Hadamtiya and Haripur. In Maliya Hatina taluka it was felt at Babra, Devgam, Gadodar, Jalandhar, Ladudi and Matarvania. 

Outside the Sasan Gir region, people were frightened and went outdoors at Amreli, Bantwa, Bhilka, Bhesan, Dhari, Junagadh, Mendharda, Mamavdhar, Mangrol, Somnath, Sutrapada, Vanthali, Vasavad, Veraval, Visavadhar and Una. Strong tremors were felt in multi-storied buildings in Amreli, Junagadh and Keshod. In Amreli it was felt for 15-20 seconds. The power supply was disrupted in the Sutrapada taluka in the Veraval area for 10-minutes after the earthquake. Tremors from this earthquake were felt in a number of places in the Saurashtra region including Ambada, Babriya, Bhavnagar, Bilawad, Chalala, Dhamnagar, Dhokadwa, Dron, Girgadhaha, Gundala, Itwaya, Jargali, Jasadhar Gir, Ladi, Liliya, Phatsar,Porbandar, Savarkundla, Tulshishyam, Ugla and Umedpara. In Bhavnagar it was felt in many parts of the city including in Anandnagar, Bharatnagar, Devrajnagar, Gayatrinagar, Kaliyabid, Pirchalla and Subhashnagar. It was also felt in high-rise buildings in Rajkot. This earthquake was not felt in Kachchh or Jamnagar districts.

Following this latest earthquake, the local media carried accounts of a dark, black and warm substance that oozed out of the earth in the Kamleshwar-Devalia forest in the vicinity of the villages of Ladudi and Hiranvel.

This is the strongest aftershock since a Mw=5.0 earthquake in the same region in October 2011. Numerous aftershocks have been recorded by the seismological network run by ISR Gandhinagar. Prior to the ML=4.3 event on 12 November 2011 (current page) the strongest aftershock was a M4.1 event at 09:37 AM IST (03:07 UTC) on 21 October 2011 that was strongly felt in the Talala region.


References
01) National Earthquake Information Centre (NEIC/PDE), Golden, USA.
02)
Institute of Seismological Research (ISR), Gandhinagar, India.
03) India Meteorological Department (IMD), Delhi.
04)
Geo Forschungs Zentrum (GFZ), Potzdam, Germany.
05) Macroseismic information has been compiled by the ASC from reports by local media and local NGO personnel.

Page Citation
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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: 13 Nov 2011 | Website Disclaimer

Amateur Seismic Centre, Pune,