Real-time ground-motion tools for seismic hazard management

用于地震灾害管理的实时地面运动工具

• 批准号: 412216-2011
• 负责人: Atkinson, Gail
• 金额: $ 9.66万
• 依托单位: University of Western Ontario
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=573434
• 关键词: Real; time; ground; motion; tools

There is a need for rapid access to information on earthquake ground shaking and its potential effects immediately after the occurrence of any significant earthquake that is felt at Ontario's nuclear power plants. This need has been brought to public awareness by the devastating 2011 M9 Tohoku Japan earthquake and, to a much lesser extent, by moderate regional earthquakes in eastern Canada, such as the 2010 M5 earthquake near Ottawa. Nuclear utilities need to be able to determine the motions that a plant has experienced within minutes of the earthquake's occurrence, so that appropriate steps can be taken to assess the situation and determine what action, if any, is required. In the event of very strong shaking the plant would shut down automatically. However, in the event of "felt shaking", the utility must be able to determine how the level of shaking compares to the design basis and capacity of the plant and assess whether a shutdown for inspection is required. It is important to avoid unnecessary shutdowns, because a shutdown, inspection and restart costs millions of dollars. It is also important to have this information quickly so that the utility can provide timely information to the public and regulatory authorities. In this project, we take advantage of the real-time seismographic data provided by the Southern Ontario Seismographic Network, operated for Ontario Power Generation (OPG) by the University of Western Ontario, to develop real-time data tools for earthquake hazard management. We will develop web-based algorithms that allow OPG to obtain processed and instrument-corrected evaluations of the shaking at Pickering, Darlington and Bruce, Ontario within minutes of the occurrence of any regional earthquakes strong enough to be felt (about M3 and greater). Shaking estimates and potential effects throughout southern Ontario will also be mapped and made available via a web interface to inform other users, including other businesses and emergency management agencies. The data products will be integrated into rapid analysis procedures to aid in the management of seismic hazards in Ontario.

需要快速获取有关地震地面震动的信息及其在安大略省核电站发生的任何重大地震发生后立即发生的潜在影响。 这项需求已被毁灭性的2011年M9 Tohoku Japan地震引起了公众意识，并且在加拿大东部（例如渥太华附近的2010年M5地震）中，在较小的程度上，这一需求在较小的程度上。 核公用事业需要能够确定植物发生后几分钟内发生的动议，以便可以采取适当的步骤来评估情况并确定需要采取什么行动（如果有）。 如果摇晃非常强烈，植物将自动关闭。但是，在“感觉摇动”的情况下，该公用事业公司必须能够确定摇动水平与工厂的设计基础和能力相比，并评估是否需要进行检查。 重要的是要避免不必要的关闭，因为关闭，检查和重新启动损失了数百万美元。 快速获取此信息也很重要，以便公用事业公司可以向公众和监管机构提供及时的信息。 在该项目中，我们利用了安大略省南部地震学网络提供的实时地震学数据，该数据由西安大略大学为安大略省电力公司（OPG）运作，开发了用于地震危险管理的实时数据工具。 我们将开发基于Web的算法，使OPG能够在Pickering，Darlington和Bruce在安大略省的Pickering，Darlington and Bruce摇晃的经过加工和仪器校正的评估，并在发生任何足够强的区域地震发生后的几分钟内（大约是M3及更大）。整个安大略省南部的摇动估算和潜在影响也将通过网络界面进行映射并提供，以告知其他用户，包括其他企业和紧急管理机构。 数据产品将被整合到快速分析程序中，以帮助管理安大略省的地震危害。