Figure 6
Seismotectonic map and chronology of earthquakes in the eastern Himalaya. Seismicity of the GANSSER project catalogue39 and the International Seismological Centre (ISC) catalogue. Blue and orange polygon shows the possible zone for the 1714 event hypocenters from Hetényi et al.43 and the proposed rupture zone for the 1950 earthquakes51. Blue circles are the 1950 aftershocks having Mw > 632. The blue rectangle is the location of the Nigluk trench47 (Priyanka 2018). Trenches (grey rectangles) from west to east are (a) Hokse53, (b) Panijhora16, (c) Chalsa13, (d) Sarpang Chu15, (e) Nameri13, (f) Hurmutty13, (g) Niglok47, (h) Pasighat17. A solid red rectangle shows the Himebasti trench. HFT Himalayan Frontal Thrust, DCF Dhubri Chungthang Fault, DF Dapsi Fault, CF Chedrang Fault, MT Mishmi Thrust. (Inset) SRTM map of the Himalayan arc showing four major transverse structures adapted from Hetényi et al.38 (Bottom) Space–time diagram is showing modelled constraints on the timing of occurrence of surface-rupturing earthquakes for a sequence of great medieval earthquakes. The vertical axis is time in calendar years CE, and the horizontal axis is the distance in kilometres from our study area. Maps were prepared in Arc GIS v10.3 using SRTM GTOPO 30 m imagery available at http://glcfapp.glcf.umd.edu/data/srtm/description.shtml. Artwork was done in Adobe Illustrator CS5.
