In this module, the learner will be able to identify earthquake potential hazards and their effects. It will provide a clear concept about ground shaking, ground rupture, tsunami, liquefaction, and earthquake-induced landslide, and ground subsidence …

Ground subsidence may result from the settlement of native low density soils, or the caving in of natural or man-made underground voids. Subsidence may occur gradually over many years as sags or depressions form on the ground surface.

In this module, the learner will be able to identify earthquake potential hazards and its effects. It will provide clear concept about ground shaking, ground rupture, tsunami, liquefaction, and earthquake induced landslide and ground subsidence which are the primary effects of …

There are generally four types of earthquake induced processes: 1) Surface rupture, 2) Ground shaking, 3) Ground failure, and 4) Tsunami and Seiches occurrence. Each type has significance to a safe design of structures and is a concern for engineering geologist defining hazard levels.

The earthquake struck the city of Lorca causing significant property damage, injuring hundreds of people and resulting in nine casualties. The hypocenter was located in a complex, active system of strike‑slip faults at a depth of 3 km.

At the Hyogo-ken Nanbu Earthquake on January 17, 1995, on the artificially reclaimed island, a very large bulk of mud was ejected and the ground subsidence of 30-50cm or more was observed.

Earthquake-induced ground effects are mainly landslides, soil liquefaction, surface faulting, and ground subsidence. They can affect an area with damage related to the full collapse or loss in functionality of facilities, roads, pipelines, and other lifelines.