SISTEM INFORMASI GEOGRAFIS PEMETAAN GEMPA BUMI TEKTONIK DI JAWA TENGAH DAN YOGYAKARTA; GEOGRAPHICAL INFORMATION SYSTEM FOR EARTHQUAKE MAPPING IN CENTRAL JAVA AND YOGYAKARTA

Wijayanti, Nurul, Janoe Hendarto

2015 | Skripsi | FMIPA

Indonesia is a country that located on a three earth plates, Eurasian plate, the Pacific plate and India – Australia plate. It make Indonesia become a country with high seismic potential. BMKG is the government agent that handles about earthquake.It has a duty to share information about earthquake. It using a social media to share the information, one of social media that used by BMKG is Twitter. The tweet of BMKG has detail information about the earthquake. The information of BMKG's tweet is the main source for mapping the earthquake epicenter. Tokenisation used to clean the tweet from unnecessary character, so the data that will be store in database is the clean data. Great circle formula is used to calculate the latitude and longitude. The latitude and longitude have the almost as same as BMKG's. The mapping of eartuhquake epicenter using marker to mark the location on google maps. Beside that, codeigniter is used as the framework. The result of this research is a geographical information system that can mapping the epicenter of the earthquake and displays detailed information about the earthquake and the scope of the affected area based on the value of earthquake mii.

Kata Kunci : Earthquake; Great Circle Formula; Twitter; Google Maps, CodeIgniter; Geographic Information System