1. Lee WHK, Espinosa-Aranda JM, Earthquake early warning system: current status and perspectives.
http://usgsprojects.org/lee/Lee_Espinosa_2003_EWSbook.pdf
2. Kalita S, Borole JN, Rane KP, Wireless earthquake alarm system. Int J Eng Trends Technol (IJETT) 12(3), June 2014.
http://www.ijettjournal.org
3. USGS, ShakeAlert, early earthquake warning.
https://www.shakealert.org
4. Buzduga C, Graur A, Ciufudean C, Vlad V, System for the detection earthquake victims—construction and principle of operation.
www.inase.org/library/2015/vienna/bypaper/csscc/csscc-15.pdf
5. Hima MS, Josphin Subha, Kalyani Devi G, Karthika S, Navin S (2016) Earthquake indicator using Arduino. Int J Res Advent Technol 4(8), August 2016