• Swathi Ganti
• M.R.S.Sampath Kumar

Hydrogeologic responses to earthquakes have been known for decades, and have occurred both close to, and thousands of miles from earthquake epicentres. Water wells have become turbid, dry or begun flowing, discharge of springs and groundwater to streams has increased and new springs have formed, and well and surface – water quality have become degraded as a result of earthquakes. Earthquakes affect our Earth’s intricate plumbing system. The potential effect of a large earthquake on groundwater in Ongole domain of Eastern Ghat mobile belt, South India has been studied in the paper. This paper will assess the groundwater levels and water quality affected after earthquakes. For this study hydrological data were collected at 21 monitoring sites from 2004 – 2010. Earthquakes induced groundwater level changes in 21 piezometers. Changes in water levels to restore to normally took nearly 6 months to 18 months. There is a lot of change observed in water quality, particularly of some elements. This type of case studies were initiated in Russia, China and Japan in recent time. Frequent low order earthquakes were noticed in recent months in Nellore, Prakasam and Srikakulam areas of Andhra Pradesh may throw some light on the future seismic activity in the region. An attempt has been made to portray the seismic picture of central coastal area of Andhra Pradesh and its effect on water quality has been presented.

Hydrogeological response, groundwater quality, earthquake prediction, health hazards

"Low Order Earthquake activity on Groundwater quality and its implications in Ongole domain of Eastern Ghat Mobile Belt, South India ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.443-450, April-2019, Available :http://www.jetir.org/papers/JETIR1904F71.pdf

"Low Order Earthquake activity on Groundwater quality and its implications in Ongole domain of Eastern Ghat Mobile Belt, South India ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp443-450, April-2019, Available at : http://www.jetir.org/papers/JETIR1904F71.pdf