DETECTION SYSTEM FOR DETERMINISTIC EARTHQUAKE PREDICTION BASED ON RADON CONCENTRATION CHANGES IN INDONESIA

Radon concentration changes are one of the natural anomalies that occur before an earthquake occurs. These events can be used as a medium to predict earthquakes. The detection system contains an ionization chamber, signal processor, system controller, data storage and electrical power supply. The detector placed on a chamber room to capture the accumulate radon emission is collected in the room. The detection system that has been developed is expected to be the first step to conduct studies on earthquake predictions. The detector system shows detection of the earthquake precursors anomaly which is radon concentration changes. To validate the results of this study, data that has been recorded on data storage media will be compared with secondary data from BMKG (Indonesian Meteorology, Climatology and Geophysics Agency). From June until August 2018, the radon concentration has a change of 0.1 pCi/l to 0.6 pCi/l respectively; the earthquake occurs within the next three days. This shows a fresh breeze in the earthquake prediction study field that the changes in radon concentration in Yogyakarta can be used as a medium to predict earthquakes. This report is in order to provide valuable information about the development system that can be used for earthquake prediction, although further studies and development of instrumentation systems from other earthquake precursor anomalies are needed.