**3.3 Assam-Arakan TZ**

This is a zone of oblique collision where two colliding continents are still in the process of convergence with a remnant ocean between them [6]. The Burmese plate collided with the NE corner of the Indian plate near the present syntaxial bend of the mobile belt (**Figures 1** and **5**). The plate continues to rotate towards the northeastern edge of the Indian plate as suturing is progressing southwestward with the extension of the subduction complex of the mobile belt. As such, this zone is tectonically highly active in the present cycle. This is evident from the intense seismic activity and occurrence of many strong earthquakes.

### **3.4 SCR Earthquake zone (Gujarat TZ & SONATA TZ)**

The SCR earthquake zone includes parts of central and western India covering parts of Madhya Pradesh, Maharashtra, and almost the whole of Gujarat (**Figure 1**). The rifted region of Kutch-Cambay, Saurashtra, and Narmada comprises the SCR EQ-zone. The Son-Narmada-Tapti tectonic lineament zone, SONATA, across the Indian shield is a part of this SCR EQ zone. This ENE-WSW trending SONATA zone is defined by Narmada-Son lineaments in the north and Tapti lineament in the south. The zone is reactivated along Precambrian Satpura-Bijawar mobile belt occupying the Central Indian Tectonic Zone (CITZ) [7]. The northern part of the CITZ is the suture zone between the BPC and DPC (Dharwar-Bastar-Singbhum) proto-cratons or sub-plates. The zone consists of a bunch of E-W striking faults parallel to the NSG, reactivated as right-lateral strikeslip faults in the neotectonic cycle. It is affected by NE-SW striking Burhanpur wrench fault [8] with a right-lateral shift. The active seismic zone around Jabalpur, Broach, and Surat is a part of this active tectonic zone. Gujarat TZ includes Saurashtra horst, Kutch, Cambay, and Narmada rifts with active faults. The most vulnerable area of strain buildup for earthquake generation is the Kutch rift (**Figures 4** and **6**).
