![]() Recording of earthquakes using scientific instruments began only around 1900. But such earthquakes have happened in the past, and understanding the earthquake history of a place is important before determining a location for a project and initiating the design of the structures.Ĭommunity memory and historical accounts of earthquakes can provide useful information to supplement scientific studies. It may seem unlikely that a large earthquake would take place hundreds of kilometers away from a tectonic plate boundary in areas with low levels of strain on the crust from tectonic motion. In many countries, earthquake history can be obtained from written historical records. Remember that low hazard does not mean no hazard.Įven though the earthquake hazard is considered low in your location, it is important to understand the earthquake history of the place to acknowledge the possibility that an earthquake can affect the region again. Ministry of Environment and Geological Survey/ Ministry of Earth Sciences) responsible for earthquake risk management in the project country to obtain more detailed information on the potential earthquake hazard. Community memory and historical accounts of earthquakes can provide useful information to supplement scientific studies.Ĭontact the governmental organisations (e.g. RecommendationsĮARTHQUAKE HISTORY AND HAZARD: Get information about major earthquakes and secondary hazards (fires, landslides, liquefaction, tsunami in coastal areas) that have affected the project area in the past and the effects these caused. Further detailed information should be obtained to adequately account for the level of hazard. Project planning decisions, project design, and construction methods should take into account the level of earthquake hazard. ![]() Based on this information, the impact of earthquake should be considered in the project, in particular during design and construction. This means that there is a 2% chance of potentially-damaging earthquake shaking in your project area in the next 50 years. In the area you have selected (Alabama) earthquake hazard is classified as low according to the information that is currently available. ![]()
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