Tectonic Plates Aftershocks Impact Assessment Tectonic Activity Seismic Activity Tsunami Generation Tsunami Warnings Historical Earthquakes Tsunami Formation Fault Lines Minor Earthquakes Tsunami Prediction Tsunami Risk Seismic Zones Earthquake Effects Seismic Waves Pazifischer Feuerring Tsunami Warning Earthquake Mechanisms Regional Earthquake History Richterscale Seismic Swarms Seismic Energy Magnitude 4.0 Earthquake In-situ Material Heterogeneity 4.0 Magnitude Earthquake Seismic Activity in Europe Seismic Risk Epicenter USGS Moment Magnitude Scale Richter Scale 4.8 Magnitude Pacific Ring of Fire Nankai Trough Earthquake Magnitude 4.7 Earthquake US Geological Survey Earthquake Preparedness Seismic Measurements Earthquake Measurement Faultlines Tremor Effects 7.0 Magnitude Aftershock Probability Impact of Earthquakes Impact Analysis Magnitude 5.5 Tsunami Risks Ring of Fire Seismic Faults