Initial Design of IoT-Based Earthquake Intensitymeter Using MMI Scale with Smartphone Display
Alwi Nofriandi, Yulkifli, Rahmat Triyono, Washilla Audia, Totop Gabe, Nur Anisa Sati^at, Theja Lufiandi R

1) Department of Physics, Faculty of Mathematics and Science, Universitas Negeri Padang 25131, West Sumatra, Indonesia
2) Head of Center for Engineering Seismology, Potential Geophysics, and Time Signatures, BMKG

Abstract

Indonesia is one of the countries geographically located in the ring of fire zone which causes frequent earthquakes. Earthquakes are natural disasters that cannot be predicted when they occur. The lack of development of digital tools for earthquake mitigation in the community causes losses in material terms and casualties are always high. Therefore, the author designed an earthquake mitigation tool that can run accurately and at an affordable manufacturing cost. This tool is created using the MPU-6050 accelerometer sensor which functions as an earthquake movement detector, the output produced by the sensor is in the form of an acceleration value from ground movement. The readable value will be converted into gal units so that the readable data is compared to the MMI scale. System testing is carried out by providing different treatments to the system in the form of 10 load variations by dropping the load with a load fall distance from the system, which is 40 cm. The readable data can be seen in the smartphone application with features in the form of a graph of ground acceleration movements and real-time data that can be accessed on a self-designed web server.

Keywords: Intensitymeter, Earthquake, IoT, MMI Scale , Smartphone.

Topic: Signal Processing and Communication