The absence of remotely triggered seismicity in Gujarat, NW India during the Nepal earthquake, 2015

Gujarat in the Northwestern Deccan Volcanic Province of India is among most seismically earthquake-prone. The region may be susceptible to remote dynamic triggering, especially Kachchh region, which recently hosted M w 7.7 Bhuj earthquake 2001. Its aftershocks continue because it critically stressed and contains nucleation points more frequently close failure. From waveforms catalog data, we examine whether triggering occurs following 25 April 2015, 7.8 Nepal mainshock India. 2015 event perturbed with a peak stress ∼53 kPa, much higher than global lower limit 1 kPa. Due large magnitude high stress, ideally, should have resulted triggered seismicity study region. To detail, also examined other recent regional earthquakes comparable stresses (>50 kPa), namely, 16 2013, Iran, 24 September Pakistan, 26 October Afghanistan. Our result shows that despite their significant there no change local seismicity. analysis suggests surface wave amplitude not only factor governs triggering. results indicate faults were during candidates