1956 Anjar earthquake

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1956 Anjar earthquake
India relief location map.jpg
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UTC  time1956-07-21 15:32:30
ISC  event 888505
USGS-ANSS ComCat
Local date21 July 1956 (21 July 1956)
Local time21:02:30
Magnitude6.1 Ms
Epicenter 23°18′N70°00′E / 23.3°N 70.0°E / 23.3; 70.0
Type Dip-slip
Areas affected India, Gujarat
Max. intensity MMI IX (Violent) [1]
Casualtiesapproximately 115 reported dead and 254 injured. [2] [3]

The 1956 Anjar earthquake occurred at 15:32 UTC on 21 July, causing maximum damage in town of Anjar in Kutch, Gujarat, India. It had an estimated magnitude of 6.1 on the surface wave magnitude scale and a maximum perceived intensity of IX on the Mercalli intensity scale. [2] [4] [5]

Contents

Earthquake

The epicenter of earthquake of 21 July 1956 was at somewhere between Anjar and Bhadresar, [6] very close to that of 1819 Kutch earthquake, between 50 and 120 km away depending on the epicentral location chosen for the earlier event. It caused considerable damage and casualties, especially in and around town of Anjar, India. The area of maximum damage was of 2000 km2 and radius of perceptibility was 300 km. [2] The cause of earthquake was reverse faulting, similar to that which caused the 1819 earthquake. [4]

Damage

The town of Anjar and the Taluka of Anjar were the most affected region with 2000 houses damaged, of which half of them were in Anjar town alone. The other towns affected were Bhuj, Kera, Bhachau, Gandhidham and port town of Kandla. [3] [5] At least 115 people were reported to have died and casualties numbered to 254 as per government records. [2] [3] It was estimated that more than 3,000 houses in 25 villages developed huge cracks, losses ran up to ₹ 10 million. Such devastation wreaked by the quake made it one of the worst calamities to hit Kutch in the past 100 years. More than 8,000 people migrated from the district a few days after the quake. The earthquake was followed by heavy rains, which added to the misery of thousands living in temporary camps. [7]

Anjar, which is a historic town and very congested in the old parts was largely destroyed in this earthquake of 1956. Later, new houses were raised on old foundations, and in due course of time also the new township of Naya Anjar or New Anjar township was founded after this earthquake for rehabilitation purpose. [8] [9] [10] The railway track near Anjar was damaged as the earth gave way over a length of nearly 50 feet, [11] however, other major railway lines, roads, bridges, culverts, were not affected by this earthquake. [12]

Other events

The next major earthquake in the region was of 26 January 2001, which again was due to a similar style of faulting as the 1819 earthquake. [4]

See also

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References

  1. ↑ National Geophysical Data Center. "Significant earthquake" . Retrieved 16 December 2013.
  2. 1 2 3 4 J.R. Kayal (2008). Microearthquake Seismology and Seismotectonics of South Asia. Springer Science & Business Media. p. 393. Bibcode:2008msss.book.....K. ISBN   978-1-4020-8180-4.
  3. 1 2 3 "Quake rocks Kutch". The Hindu . 24 July 1956. Archived from the original on 24 August 2011. Retrieved 16 December 2013.
  4. 1 2 3 Chung W.-Y. & Gao H. (1995). "Source parameters of the Anjar earthquake of July 21, 1956, India, and its seismotectonic implications for the Kutch rift basin". Tectonophysics. 242 (3–4): 281–292. Bibcode:1995Tectp.242..281C. doi:10.1016/0040-1951(94)00203-L.
  5. 1 2 India: Anjar, Bhuj, Gandhidham, Kandla Earthquake, 1956
  6. ↑ Earthquakes in Gujarat, India
  7. ↑ Times Relier Fund for Anjar Earthquake of 1956.
  8. ↑ Understanding Earthquake Disasters by Amita Sinvhal – 2010 – Page 97.
  9. ↑ UNESCO MISSION TO GUJARAT, INDIA, FOR THE CONSERVATION OF EARTHQUAKE-DAMAGED CULTURAL PROPERTIES
  10. ↑ Gujarat State Gazetteer by U. M. Chokshi, M. R. Trivedi – 1991 – Volume 2 – Page 527.
  11. ↑ Indian Journal of Meteorology & Geophysics – Volume 10 – 1959 – Page 137
  12. ↑ Proceedings of the Indian Science Congress – Volume 44 – 1957 – Page 167.
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