Investigation of an optimized model and the behavior of the properties of Tsunami waves and nature of the earthquake based on Accelerometer, float level sensor and Microcontroller is the main objective of the research paper. Models that describe different components of the Tsunami detector are addressed and their implementations into Proteus and PCB are described. Tsunami is hazards that threaten many countries. To protect people from this hazard, a warning system must rapidly and effectively provide critical information to those at risk to motivate them to take appropriate actions to save their lives. The proposed Tsunami detector model has a set of accelerometer, Float level sensor, microcontroller and buzzer which detects the Tsunami waves as well as earthquake. Simulation and practical implementation results show that the controllers can detect earthquake as well as Tsunami waves very precisely under the hazard conditions. The controllers show very good dynamic and transient performances.