Rapid investigation of co and post-seismic deformation resulting from the 24th August 2016 Amatrice Earthquake (M 6.2)

对 2016 年 8 月 24 日阿马特里切地震 (M 6.2) 造成的震后变形的快速调查

• 批准号: NE/P018858/1
• 负责人: Laura Gregory
• 金额: $ 6.67万
• 依托单位: University of Leeds
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2016
• 资助国家: 英国
• 起止时间: 2016 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=NE%2FP018858%2F1
• 关键词: Rapid; investigation; co; post; seismic

At 3:36 AM on the 24th of August a magnitude 6.2 earthquake struck the Amatrice region. The shaking in this event caused nearly 300 deaths and significant damage to the villages distributed across the region. The earthquake ruptured across two faults, the Laga-Amatrice and Vettore faults, which were previously thought to be separate structures that could not rupture in a single event. Our team visited the region days after the event to begin scientific study of this earthquake, investigating the surface expression of the earthquake and installing GNSS equipment that will measure high-resolution motion of the ground continuously for weeks and months following the earthquake. Our team comprises UK and Italian scientists from the University of Leeds, University of Durham, Univeristy of London, Birkbeck University of London, University of Insurbia, the Italian Geological Survey (ISPRA), and Geospatial Research Ltd (Durham). Members of our team who are experts in using satellite data to investigate ground deformation (Durham) processed data in real-time to direct the initial field campaign.This project will aim to fully characterise the nature of the Amatrice earthquake in terms of what happened during and what is continuing to occur after the seismic event. We will use a variety of techniques including satellite radar measurements and modelling of co and post -seismic deformation, GNSS (Global Navigation Satellite System) measurements of ground deformation, photogrammetry and laser scanning to make high resolution measurements of the surface rupture, detailed field work in the region of the earthquake, and modelling techniques to determine how this earthquake affected stress on the surrounding faults. The work is urgent due to the need to document post-seismic deformation in the weeks and months following the earthquake, and the degrading nature of the surface rupture. This research will allow us to investigate fault connectivity and how linkage develops. We will test hypotheses regarding the role of postseismic deformation after an earthquake that links previously independent structures. Fault linkage typically happens over long geological timescales and has never before been captured before with such a high quality dataset. Our results will be important for incorporating multi-fault rupturing earthquakes into future hazard assessments made in central Italy and globally.

8月24日凌晨3点36分，阿马特里斯地区发生6.2级地震。这次地震造成近300人死亡，并对分布在该地区的那些村庄造成严重破坏。这次地震跨越了两个断层，拉加-阿马特里切断层和维托尔断层，这两个断层以前被认为是独立的结构，不可能在一次地震中破裂。我们的小组在地震发生几天后访问了该地区，以便开始对这次地震进行科学研究，调查地震的地表表现，并安装全球导航卫星系统设备，该设备将在地震发生后数周和数月内连续测量地面的高分辨率运动。我们的团队由来自利兹大学、达勒姆大学、伦敦大学、伦敦伯克贝克大学、Insurbia大学、意大利地质调查局（ISPRA）和地理空间研究有限公司（达勒姆）的英国和意大利科学家组成。我们的团队成员是使用卫星数据调查地面变形的专家（达勒姆），他们实时处理数据以指导最初的现场活动。该项目旨在全面了解阿马特里斯地震的性质，包括地震期间发生的情况和地震后继续发生的情况。我们将使用各种技术，包括卫星雷达测量和地震后变形的建模，GNSS（全球导航卫星系统）测量地面变形，摄影测量和激光扫描，以高分辨率测量地表破裂，地震地区的详细实地工作，以及建模技术，以确定地震如何影响周围断层的应力。这项工作是紧迫的，因为需要记录地震后几个星期和几个月的地震后变形，以及地表破裂的退化性质。这项研究将使我们能够调查故障的连通性和如何链接的发展。我们将检验有关震后变形的作用的假设，地震后，连接以前独立的结构。断层连接通常发生在很长的地质时间尺度上，以前从未用如此高质量的数据集捕获过。我们的研究结果将是重要的多断层破裂地震纳入未来的灾害评估在意大利中部和全球。

项目成果

Dual control of fault intersections on stop-start rupture in the 2016 Central Italy seismic sequence

• DOI: 10.1016/j.epsl.2018.07.043
• 发表时间: 2018-10
• 期刊: Earth and Planetary Science Letters
• 影响因子: 5.3
• 作者: R. Walters;L. Gregory;L. Wedmore;T. Craig;K. McCaffrey;M. Wilkinson;J. Chen;Zhenhong Li;J. Elliott;H. Goodall;F. Iezzi;F. Livio;A. Michetti;G. Roberts;E. Vittori

A 667 year record of coseismic and interseismic Coulomb stress changes in central Italy reveals the role of fault interaction in controlling irregular earthquake recurrence intervals

意大利中部 667 年同震和震间库仑应力变化记录揭示了断层相互作用在控制不规则地震复发间隔中的作用

• DOI: 10.1002/2017jb014054
• 发表时间: 2017
• 期刊: Solid Earth
• 影响因子: 3.4
• 作者: Wedmore L

Drainage integration and sediment dispersal in active continental rifts: A numerical modelling study of the central Italian Apennines

• DOI: 10.1111/bre.12289
• 发表时间: 2018-07
• 期刊: Basin Research
• 影响因子: 3.2
• 作者: A. Geurts;P. Cowie;G. Duclaux;R. Gawthorpe;R. Huismans;V. Pedersen;L. Wedmore

Partitioned Off-Fault Deformation in the 2016 Norcia Earthquake Captured by Differential Terrestrial Laser Scanning

差分地面激光扫描捕获的 2016 年诺尔恰地震中的分区断层变形

• DOI: 10.1029/2018gl080858
• 发表时间: 2019
• 期刊: Geophysical Research Letters
• 影响因子: 5.2
• 作者: Wedmore L

Surface faulting during the August 24, 2016, Central Italy earthquake (Mw 6.0): preliminary results

• DOI: 10.4401/ag-7197
• 发表时间: 2016-01-01
• 期刊: ANNALS OF GEOPHYSICS
• 影响因子: 1
• 作者: Livio, F.;Michetti, A. M.;Wilkinson, M.
• 通讯作者: Wilkinson, M.