Hualien Ring of Fire Hualien County Seismic Activity Pacific Ring of Fire Tectonic Plates Earthquake Preparedness Earthquake Impact Earthquake History Preparedness Building Collapses Seismic Faults Aftershocks Southern California Disaster Response Recent Events Historical Events Impact Assessment Emergency Response Impact on Infrastructure Magnitude 7.4 Chiayi County Hualien City Pacific Ocean Tsunami Major Earthquake Earthquake Causes