Which of the following is/are the main reason/s for the occurrence of earthquakes along the Himalayan Arch?
(A) Movement of Indian plate towards south and southwest direction.
(B) Obstruction of movement of Indian plate by Eurasian plate.
(C) Release of accumulated energy and stress resulting from breaking of lock between Indian and Eurasian Plate.

Correct option is A

Correct Answer: (B) and (C)
Explanation:
→ Statement (A): "Movement of Indian plate towards south and southwest direction". This is incorrect. The Indian Plate is moving northward and northeasterly, not towards the south and southwest.
→ Statement (B): "Obstruction of movement of Indian plate by Eurasian plate" is true. The collision between the Indian plate and the Eurasian plate causes the Indian plate to be obstructed, which leads to stress accumulation and subsequent earthquakes.
→ Statement (C): "Release of accumulated energy and stress resulting from breaking of lock between Indian and Eurasian Plate". This is correct. The slow but immense pressure from the colliding plates builds up stress and energy over time. Earthquakes occur when this stored energy is suddenly released, as the "lock" between the plates breaks.
Information Booster:
→ The Himalayan region is one of the most seismically active areas in the world due to the ongoing collision between the Indian Plate and the Eurasian Plate.
→ The Indian Plate is moving towards the northeast, while the Eurasian Plate is moving towards the south, causing immense pressure along their boundaries.
→ This pressure builds up over time as the plates continue to move and obstruct each other, creating fault lines along the Himalayan region.
→ Earthquakes occur when the stress along these fault lines exceeds the strength of the rocks, resulting in the sudden release of energy.
→ The Himalayan Arch is not only affected by the collision of these two plates but also by the complex network of sub-faults and the movements of other smaller tectonic plates in the region.
→ These earthquakes can be catastrophic, causing landslides, building collapses, and other natural disasters.