The application of R and ArcGIS software as a learning media to estimate the return period of the destructive earthquake in Aceh areas using maximum likelihood method

Aceh is one of the most vulnerable areas for earthquakes. The earthquakes occurred has caused much loss including lives. Therefore, earthquake occurrence time estimation is needed to mitigate preparedness to the earthquake disaster. The purpose of this research was to explain the measurement result of destructive earthquake repetitive period in Aceh and other surrounding areas using Likelihood Maximum method toward the utilization of R and ArcGIS software instructional media. The data was obtained on trial utilization of R and ArcGIS software on Spatial Statistics course. The participants are 18 students taking the spatial statistics class. The research instrument was the observation sheet used to evaluate the implementation of student worksheets in the class. The data sources the students used for the measurement were obtained from USGS and BMKG. The results found that the students were able to predict the earthquake correctly using student worksheet assisted by the R and ArcGIS software. That is the earthquake would occur in the next 5.2 years at the marine territory of the southern region of Aceh Singkil. Based on this result, it can be concluded that the student worksheet could be used in the spatial statistics class assisted by the R and ArcGIS software.