Why the May 12 Nepal quake is called an aftershock
The May 12, 2015 earthquake of 7.3 magnitude that struck 68 km west of Namche Bazar, close to Mount Everest is an aftershock of the April 25 Nepal quake of…
Category: R.K. Chadha
Himalayas: next major quake may be west of the recent one
“In future, if any earthquake were to happen along the Himalayas, it may happen further west of the focus of the main April 25 quake,” said Dr. R.K. Chadha, Chief…
A shallow quake but high magnitude
Published in The Hindu on September 1, 2012 The 7.6-magnitude quake that occurred at a depth of nearly 34 km below the ocean floor was due to the Pacific plate…
April 11 quake: Distance from epicentre protects Indian cities
Published in The Hindu on April 13, 2012 If the amount of energy released during an earthquake is measured in terms of magnitude, its effects on the earth’s surface are…
Why the April 11 quake was caused by a strike-slip fault
Published in The Hind on April 13, 2012 Besides the subduction zone (where the Indian plate dives under the Burmese plate) that lies to the west of Indonesia, the Indian…
Sumatra quake: Why there was no tsunami
Published in The Hindu on April 12, 2012 The U.S. Geological Survey (USGS) initially estimated Wednesday’s earthquake off the west coast of Northern Sumatra, at 8.9 magnitude. But it was…
Quakes: of prediction, coincidence and panic
Published in The Hindu on September 14, 2006 Next time when someone predicts an earthquake with great certainty and specifies the exact time, location and magnitude, take it with a…
Tsunami: role of mega thrust confirmed
Published in The Hindu on December 22, 2005 One year after the killer waves struck havoc that killed hundreds of thousands of people, the answers for what actually caused the…
