Firdaus S, Ahmad U, Syauqi F, Daryono ., Mustofa F, Nugroho H, Farady I, Tresna W. Geofenced Earthquake Notification System Using Haversine-Based Distance Calculation and MMI Intensity Estimation. IJG [Internet]. 2026Aug.30 [cited 2026Aug.31];22(8):1. Available from: https://ijg.journals.publicknowledgeproject.org/index.php/journal/article/view/5146