Print Friendly, PDF & Email

Examine the threat perception of earthquakes for the Delhi NCR region in the light of recent series of Earthquake tremors witnessed by it.

Topic: Important Geophysical phenomena such as earthquakes, Tsunami, Volcanic activity, cyclone etc., geographical features and their location-changes in critical geographical features (including water-bodies and ice-caps) and in flora and fauna and the effects of such changes.

1. Examine the threat perception of earthquakes for the Delhi NCR region in the light of recent series of Earthquake tremors witnessed by it. (250 words)

Reference: The Hindu 

Why the question:

The National Capital Region has witnessed seven mild earthquakes in the last 20 days. Thus the context of the question.

Key Demand of the question:

The answer must evaluate the threat perception in the Delhi region.

Directive:

Examine – When asked to ‘Examine’, we must look into the topic (content words) in detail, inspect it, investigate it and establish the key facts and issues related to the topic in question. While doing so we should explain why these facts and issues are important and their implications.

Structure of the answer:

Introduction:

Start with some key facts related to the events – Since May 15 2020, the National Center for Seismology has recorded seven small earthquakes, ranging from 1.8 to 4.5 on the Richter scale, with epicenters at Faridabad, Rohtak and New Delhi. The spate of tremors has fuelled speculation of a high-magnitude earthquake in the region.

Body:

Discuss the underlying reasons that have been identified, that have led to the Earthquakes. Some experts have interpreted the recent earthquakes as being a sign that the region was unlikely to have a greater earthquake. Earthquakes in this region were due to “release of stress” accumulated from the movement of the Indian tectonic plate and its collision with the Eurasian tectonic plate. The recent tremors would have diffused the accumulated stress, reducing the risk of a more serious earthquake. Discuss that Consistent tremors would be a cause for concern only if they occurred in regions where tectonic plates met. Only larger faults and larger systems trigger bigger earthquakes. Highlight the associated concerns.

Conclusion:

Conclude with what needs to be done to address the situation; Given the threat perception, it is imperative to strictly impose building codes as a precautionary measure.