04/02/1762 | 1762 Arakan Earthquake


The 1762 Arakan earthquake (also known as Bengal Earthquake) which heavily affected today's Bangladesh and Myanmar is still poorly understood and also the magnitude shows major uncertainties (M>8). Aung et al. (2008) summarized surveys on coastal uplift indicating a lift-up of 3-7m along parts of the coast. Cummins (2007) reconstructed the uplift with a M8.8 earthquake. With updated data on coastal deformation, Wang et al. (2013) suggest a slightly smaller magnitude of 8.5 as more fitting.

Events in the same region
Date Title Region Preferred Magnitude Quality*
1000s 10th Century Bengal Earthquake Myanmar 8.5 D
1762 Apr 02nd 1762 Arakan Earthquake Myanmar 8.5 C
  • GHEA (GHEC v1.0) -Albini P., Musson R.M.W., Rovida A., Locati M., Gomez Capera A.A., and Viganò D. (2014). The Global Earthquake History. Earthquake Spectra, May 2014, Vol.30, No.2, pp. 607-624. http://doi.org/10.1193/122013EQS297 - Link
  • Wang et al. (2013) -Wang, Y., Shyu, J. B. H., Sieh, K., Chiang, H. W., Wang, C. C., Aung, T., ... & Tun, S. T. (2013). Permanent upper plate deformation in western Myanmar during the great 1762 earthquake: Implications for neotectonic behavior of the northern Sunda megathrus - Link
  • Cummins (2007) -Cummins, P. R. (2007). The potential for giant tsunamigenic earthquakes in the northern Bay of Bengal. Nature, 449(7158), 75-78. - Link
Event Characteristics
Preferred Magnitude 8.50 (8.50-8.80)
Epicenter 20.000°N, 93.500°E
Depth 25 km
Tsunami yes
Paleo-Event no
Quality of Evidence C

Magnitude Range
Year Reference Magnitude
2013 Wang et al. (2013) 8.5
2007 Cummins (2007) 8.8

This table lists some of the most relevant publications in estimating the moment magnitude of this earthquake. If you think there are other important or new publications, please get in contact.