Collaborative Research: RAPID: Deployment of a Nodal Array to Capture Aftershocks of the 2023 Kahramanmaras Earthquake Sequences in Turkey

合作研究：RAPID：部署节点阵列捕获 2023 年土耳其卡赫拉曼马拉斯地震序列的余震

• 批准号: 2322461
• 负责人: Eric Sandvol
• 金额: $ 5.69万
• 依托单位: University of Missouri-Columbia
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-04-15 至 2025-03-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2322461&HistoricalAwards=false
• 关键词: Collaborative; Research; RAPID; Deployment; Nodal

Zhigang Peng and Eric Sandvol will install over 100 seismometers in southeastern Turkey to measure aftershocks following the deadly earthquakes of February 6, 2023. The seismometers should detect all aftershocks with magnitudes greater than 1, and over the ten-month deployment around 100,000 are likely to be recorded. It is important that these seismometers be installed and making measurements soon after the major quakes because the number of aftershocks per day decreases over time. The recorded earthquake data will be uploaded to a website and freely shared with other scientists and the interested public. Using these data, Peng, Sandvol, and other scientists can estimate the geometry of all active faults in the region, image properties of the crust in 3D, and develop models to help with forecasting earthquakes. The data will also be used to map out where local soils amplify shaking, so building codes can be improved in these areas. Three U.S. graduate students will go to Turkey to help Peng, Sandvol, and their Turkish collaborators with field work and data analysis.Zhigang Peng and Eric Sandvol propose to deploy seismometers in southeastern Turkey to record aftershocks from the February 6, 2023 M 7.8 and M 7.5 earthquakes. The instruments will include ten broadband seismometers with a high dynamic range, 100 5 Hz SmartSolo three-component seismometers, and six short-period instruments, all from from Earthscope’s RAPID pool. The PIs expect to record about 100,000 aftershocks and the catalogue should be complete down to M = 0.5 to 1. Machine learning and template matching techniques will be applied to the new aftershock catalogue to delineate the geometry of the East Anatolian and Dead Sea faults, the Cyprian Arc, and intraplate faults in this tectonically complex region. These data can also be used to image the crustal velocity structure, using body wave travel time data and surface wave dispersions analysis from large aftershocks and ambient noise. Data from nodal instruments will also be used to quantify site amplification for a range of frequencies. This project will strengthen ties between US and Turkish scientists at TUBITAK. Three graduate students from the PIs' institutions will participate in the fieldwork and gain valuable training, as well as collaboration experience with Turkish scientists and students. Following the NSF RAPID data policy, all of the data will be uploaded to Earthscope Inc.’s Data Management Center (DMC).This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

庞彭和埃里克·桑德沃（Eric Sandvol）将在土耳其东南部安装100多个地震仪，以测量2023年2月6日致命的地震后的余震。地震仪应记录所有大于1的震撼力，并可能记录大于100,000的所有震撼力。重要的是要安装这些地震米并在主要地震后不久进行测量，因为每天的余震数量随着时间的推移而减少。记录的地震数据将上传到网站，并免费与其他科学家和有趣的公众共享。使用这些数据，Peng，Sandvol和其他科学家可以估计该区域所有活动断层的几何形状，3D中地壳的图像特性，并开发模型以帮助预测地震。数据还将用于绘制当地土壤放大摇动的位置，因此可以在这些区域改进建筑法规。三名美国研究生将前往土耳其，以帮助彭，桑德沃和他们的土耳其合作者进行现场工作和数据分析。ZhigangPeng和Eric Sandvol提议在土耳其东南部部署地震仪，以记录2023年2月6日，2023年2月6日M 7.8和M 7.5和M 7.5地球。这些仪器将包括十个具有高动态范围的宽带地震仪，100 5 Hz Smartsolo三组分地震米和六种短期仪器，都是Earthscope的Rapid Pool。 PI预计将记录约100,000个余震，并且该目录应完整地降低到M = 0.5至1。机器学习和模板匹配技术将应用于新的余震目录，以描述东阿纳托那托利亚和死海的几何形状，塞浦路斯弧，塞浦路斯弧，塞浦路斯弧，以及在这个构造构成复杂的区域中的缺陷。这些数据还可以用于使用体波旅行时间数据和表面波分散分析，并从大型余震和环境噪声中进行表面波分散分析。来自节点仪器的数据也将用于量化一系列频率的位点扩增。该项目将加强在图比塔克的我们和土耳其科学家之间的联系。来自PIS机构的三名研究生将参加现场工作并获得价值培训，以及与土耳其科学家和学生的合作经验。在NSF快速数据政策之后，所有数据将被上传到Earthscope Inc.的数据管理中心（DMC）。该奖项反映了NSF的法定任务，并通过使用基金会的知识分子优点和更广泛的影响审查标准来通过评估来表示赞成支持。