Tham khảo Chấn_tiêu

  1. The hypocenter is the point within the earth where an earthquake rupture starts.
  2. Kennelly, Patrick J.; Stickney, Michael C. (2000). “Using GIS for Visualizing Earthquake Epicenters, Hypocenters, Faults and Lineaments in Montana”. United States Geological Survey. USGS Open-File Report 00-325. Bản gốc lưu trữ ngày 23 tháng 3 năm 2004. 
  3. “FAQs - Measuring Earthquakes: Q: How do seismologists locate an earthquake?”. United States Geological Survey.