Shake Alarm Device

Abstract

In the Philippines, the highest magnitude recorded in the year 2017 was 7.2 occurred at Sarangani, Davao Occidental that caused damages to properties and injuries to several people. This situation led the researchers to create the Shake Alarm Device that will lessen the casualties and injuries by automatically alarming when a magnitude 4 and above occurs;we tested the hypothesis that the Shake Alarm Device is efficient in terms of sensing intensities such as 4 to 12. After creating the device, tests were conducted in the Earthquake simulator of Philippines Institute of Volcanology and Seismology (PHIVOLCS) by getting the reaction time in different Intensities in three trials and its average to evaluate the efficiency of the device. The results showed that the reaction time is inversely proportional to the intensity level with an overall average of 0.57 seconds, and an efficiency level of 45.83%. It is also showed that the device does not react to intensities 1-3 based on the trials on the Earthquake simulator. By the results in relation with the hypothesis, the researchers came up with the following conclusions: The gathered data from the shake alarm device is efficient regarding sensing intensities ranging from a minimum of 4 and maximum of 12. The Shake Alarm Device has an efficiency of 45.83% and has an average reaction time of 0.57 seconds.