Garhwal-Kumaon Segment Of The Himalayas Most Vulnerable To Earthquakes, Says ResearchA view of Kumaon Himalayas [By solarshakti Via Wikimedia Commons]

A study by the researchers from various institutions in the country has stated that Garhwal-Kumaon segment of the north-west Himalayas is seismically the most vulnerable section of the region and has a potential to suffer great earthquakes, The Tribune has reported.

The findings, published in the “Earth and Planetary Science Letters”, are based on the analysis of continuous global positioning satellites (GPS) measurements for five years (2013-2018) from 28 stations located in the Garhwal-Kumaon Himalayas and the adjoining Indo-Gangetic plains.

Vineet Gahalaut, corresponding author of the paper and the director of the National Centre for Seismology in Delhi said that the north-western Himalayas, which lie partly in India and partly in Nepal had not experienced a huge earthquake since 1505.

He said that analysis of GPS measurements of crustal deformation suggested “strong seismic coupling” below the Garhwal-Kumaon region.

The “strong seismic coupling” means that the fault below the region is “locked” which makes it capable of accumulating stress.

As per the report, the seismic coupling region is estimated to be about 85 km in width.

The researchers claimed that since the last earthquake in 1505, a slip - relative displacement of formerly adjacent points on opposite sides of a fault - of more than 7 metre must have been accumulated in the strongly coupled region “which is enough to produce a great earthquake in the region”.

According to the report, GPS measurements found a convergence rate of 18 mm per year for more than 500 years in this part of the Himalayas which makes this part of the fault “one of the most earthquake-vulnerable segments of the Himalayan arc.”

An Appeal...

Dear Reader,

As you are no doubt aware, Swarajya is a media product that is directly dependent on support from its readers in the form of subscriptions. We do not have the muscle and backing of a large media conglomerate nor are we playing for the large advertisement sweep-stake.

Our business model is you and your subscription. And in challenging times like these, we need your support now more than ever.

We deliver over 10 - 15 high quality articles with expert insights and views. From 7AM in the morning to 10PM late night we operate to ensure you, the reader, get to see what is just right.

Becoming a Patron or a subscriber for as little as Rs 1200/year is the best way you can support our efforts.

Become A Patron
Become A Subscriber