Natural Disasters

Introduction to Seismic and Liquefaction Hazards Seismic hazards refer to the potential risks associated with earthquakes, including surface rupture, ground shaking, and secondary effects such as landslides and tsunamis. While these hazards are present in many regions worldwide, particular geologic and hydrologic conditions amplify their effects. One of the most significant secondary risks associated with … Read more

Introduction to Seismic and Liquefaction Hazards Seismic hazards pertain to the potential for ground shaking and other adverse effects from earthquakes. In the context of Nebraska, seismic activity is generally considered low compared to other regions in the United States. However, the state is not entirely free from seismic risks, as certain areas may experience … Read more

Introduction to Seismic and Liquefaction Hazards Seismic hazards refer to the potential for ground shaking and other effects caused by earthquakes. In Alaska, a region characterized by significant tectonic activity, residents are acutely aware of the threats posed by such seismic events. The state is home to numerous faults, where the movement of tectonic plates … Read more

Introduction to Seismic Liquefaction Seismic liquefaction is a geological phenomenon that occurs when saturated soil substantially loses its strength and stiffness during seismic activities, such as earthquakes. This process is typically triggered by the intense shaking associated with an earthquake, which increases pore water pressure within the soil. When this pressure exceeds the effective stress … Read more