The 4 January 2016 Manipur earthquake in the Indo-Burmese wedge, an intra-slab event

Gahalaut, V. K. ; Kundu, Bhaskar (2016) The 4 January 2016 Manipur earthquake in the Indo-Burmese wedge, an intra-slab event Geomatics, Natural Hazards and Risk, 7 (5). pp. 1506-1512. ISSN 1947-5705

[img] PDF
Restricted to Registered users only


Official URL:

Related URL:


Earthquakes in the Indo-Burmese wedge occur due to India-Sunda plate motion. These earthquakes generally occur at depth between 25 and 150 km and define an eastward gently dipping seismicity trend surface that coincides with the Indian slab. Although this feature mimics the subduction zone, the relative motion of Indian plate predominantly towards north, earthquake focal mechanisms suggest that these earthquakes are of intra-slab type which occur on steep plane within the Indian plate. The relative motion between the India and Sunda plates is accommodated at the Churachandpur-Mao fault (CMF) and Sagaing Fault. The 4 January 2016 Manipur earthquake (M 6.7) is one such earthquake which occurred 20 km west of the CMF at ∼60 km depth. Fortunately, this earthquake occurred in a very sparse population region with very traditional wooden frame houses and hence, the damage caused by the earthquake in the source region was very minimal. However, in the neighbouring Imphal valley, it caused some damage to the buildings and loss of eight lives. The damage in Imphal valley due to this and historical earthquakes in the region emphasizes the role of local site effect in the Imphal valley.

Item Type:Article
Source:Copyright of this article belongs to Taylor and Francis Group.
Keywords:Indo-Burmese Wedge; Sagaing Fault; Seismogenesis; Earthquake Focal Mechanisms; Intra-slab Earthquakes
ID Code:112760
Deposited On:07 Jun 2018 06:46
Last Modified:07 Jun 2018 06:46

Repository Staff Only: item control page