No reliable historical seismic record in the region before 1800 A.D.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/article-does-not-rule-out-quake-jaitapur
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/hindu-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ratnagiri-d
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/jaitapur
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/nuclear-power-plants
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/earthquakes
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/council-scientific-and-industrial-research-csir
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/nuclear-power-corporation-india-npcil
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/atomic-energy-commission-aec
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/nuclear-accidents
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/nuclear-safety
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tsunami
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/natural-disasters