1931 Myitkyina earthquake

The 1931 Myitkyina earthquake, or also known as the 1931 Kamaing earthquake, occurred on January 28 at 02:35 local time (20:9 January 27 UTC).[1][2] It was located in northern Burma, then part of British India. The magnitude of this earthquake was put at Mw 7.6. According to some sources the depth was 35 km, and according to a study of Phyo M. M. the depth was 5 to 30 km.[1][3]

1931 Myitkyina earthquake
UTC time1931-01-27 20:09:19
ISC event906595
USGS-ANSSComCat
Local dateJanuary 28, 1931 (1931-01-28)
Local time02:35
MagnitudeMw 7.6 [1]
Depth35 km (22 mi) [1]
Epicenter25.67°N 96.15°E / 25.67; 96.15 [1]

The shock was very violent and lasted at least 30 seconds.[2] The intensity reached MMI IX. There were numerous fissures and cracks.[4] Sand blows were reported. The earthquake may have been caused by slip along the Sagaing Fault.[5] The Sagaing Fault is a continental transform fault between the India Plate and the Sunda Plate.[6] This earthquake is located along the northern Sagaing Fault. Sagaing Fault at 22° N is narrow, about 10 km wide. The part of Sagaing Fault between 25°30' and 26° is wider, with a shear zone about 70 km wide, and has four branches identified.[7]

See also

References
  1. Engdahl, E. R.; Vallaseñor, A. (2002). "Global seismicity: 1900–1999" (PDF). International Handbook of Earthquake & Engineering Seismology. Part A, Volume 81A (First ed.). Academic Press. p. 675. ISBN 978-0124406520.
  2. Chhibber, H. L. (1933). The Physiography of Burma. Longmans, Green & Company, Limited.
  3. Phyo, M.M. & Shibazaki, B & Hurukawa, Nobuo. (2010). Relocation of earthquakes in Myanmar by MJHD method: Aftershocks of large earthquakes and seismicity along the Sagaing fault. Bulletin of the International Institute of Seismology and Earthquake Engineering. 44. 25–30.
  4. MacRae, G. A., U. T. Myint, and Sudhir Kumar Jain. "Steps in Earthquake Proofing a Country—A Case Study of Myanmar." Bulletin of the New Zealand Society for Earthquake Engineering 44.2 (2011): 87.
  5. Molnar, Peter; Qidong, Denq (1984), "Faulting associated with large earthquakes and the average rate of deformation in central and eastern Asia", Journal of Geophysical Research: Solid Earth, 89 (B7): 6203–6227, Bibcode:1984JGR....89.6203M, doi:10.1029/JB089iB07p06203
  6. Tsutsumi, H.; Sato, T. (2009), "Tectonic geomorphology of the southernmost Sagaing Fault and surface rupture associated with the May 1930 Pegu (Bago) earthquake, Myanmar" (PDF), Bulletin of the Seismological Society of America, Seismological Society of America, 99 (4): 2155–2168, Bibcode:2009BuSSA..99.2155T, doi:10.1785/0120080113, archived from the original (PDF) on 2014-12-25, retrieved 2012-04-04
  7. Maurin, T; Masson, F; Rangin, C; Min, U. T; Collard, P (2010), "First global positioning system results in northern Myanmar: Constant and localized slip rate along the Sagaing fault", Geology, 38 (7): 591, Bibcode:2010Geo....38..591M, doi:10.1130/G30872.1
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