International Science Community Association Research Journal of Engineering Sciences 2278 - 9472 1 4 2012 October 26 Study of Seismic Precursors by Wavelet Analysis 48 52 EN KaruppaR. RajThundil 1 School of Mechanical and Building Sciences, VIT University, Vellore-632014, INDIA Pavan P. 2 Reddy RajeevD. 3 Chattopadhyay D.P. 1 Department of Textile Chemistry, Faculty of Technology and Engineering, The M.S.University of Baroda, Vadodara-390001, INDIA Inamdar M.S. 2 Faculty of Textile Processing, Sarvajanik College of Engineering and Technology, Surat-395001, INDIA Kumar S. 1 Ahmad Z. 2 T. Mansoor 3 Himanshu S.K. 4 Kaur Satindar 1 Department of Food Sciences and technology, Guru Nanak Dev University, Amritsar, INDIA Chattopadhyay D.P. 2 Department of Textile Chemistry, Faculty of Technology and Engineering, The M. S. University of Baroda, Vadodara, INDIA Kaur Varinder 3 Department of Applied Chemical Sciences and Technology, Guru Nanak Dev University, Amritsar, INDIA Dosunmu A. 1 Department of Petroleum and Gas Engineering, Faculty of Engineering, University of Port Harcourt, NIGERIA Okoro E.E. 2 Lakshmanan N. 1 Anna university of Technology - Coimbatore, INDIA Ramachandran G.M. 2 Department of Chemical Engineering, Kongu Engineering College, Erode TN, INDIA Saravanan K. 3 Saravanan D. 1 School of Mechanical and Building Sciences, VIT University, Vellore-632014, TamilNadu, INDIA Vijayakumar T. 2 School of Mechanical Engineering, Veltech Dr RR and SR Technical University, Chennai, TamilNadu, INDIA Thamaraikannan M. 3 Gwal A.K. 1 Space Science Laboratory, Department of Physics Barkatullah University Bhopal 462026, INDIA Shaheen Rubeena 2 Panda Gopal 3 Jain SantoshKumar 4 > Research Paper 2012 9 6 2012 October 26 In this study we analyzed the NmF2 data by wavelet analysis at the time of strong seismic event. We used Ionosonde data for analysis. Data of maximum electron density of F2 layer (NmF2) was collected from NOAA space environment center. With the help of Mat-Lab software wavelet analysis performed. Results of the study showed some unusual perturbations in NmF2 parameter few days before earthquake. This fact can be used as precursory phenomena. It may be due to the emission of energy from the earth rock which propagate upward and perturb the F-region of ionosphere. This study may be useful for earthquake prediction. Copyright@ International Science Community Association