Citizen seismology helps decipher the 2021 Haiti earthquake
Citizen seismology helps decipher the 2021 Haiti earthquake
复制标题
公民地震学有助于破译 2021 年海地地震
DOI：
10.1126/science.abn1045
复制
发表时间：
2022
期刊：
影响因子：
56.9
通讯作者：
L. Meng
中科院分区：
文献类型：
--
作者：
É. Calais;S. Symithe;T. Monfret;B. Delouis;A. Lomax;F. Courboulex;J. Ampuero;P. Lara;Q. Bletery;J. Chèze;F. Peix;A. Deschamps;B. D. de Lépinay;B. Raimbault;R. Jolivet;S. Paul;S. St Fleur;D. Boisson;Y. Fukushima;Z. Duputel;L. Xu;L. Meng
2021年8月14日，海地发生的7.2尼普斯矩震级地震与其毁灭性的2010兆瓦7.0级地震发生在同一断裂带内，但由于不安全和国家网络的常规地震仪无法工作，地震现场准入受到限制。2019年安装的公民地震仪网络提供了对迅速了解主震机制和监测其余震序列至关重要的近场数据。他们的实时数据定义了两个余震群，这两个余震群与两个同震滑动区域重合，这两个区域来自常规地震学和大地测量数据的反演。将机器学习应用于离主震最近的公民地震仪的数据，使我们能够像网络衍生目录一样准确地预测余震。这表明公民科学有助于我们理解一场大地震。海地2021年尼普斯地震摧毁了多达14万所房屋，造成数千人死亡。尽管海地有很大的地震风险，但那里只有几个高质量的地震台站。Calais等人。这表明，设在志愿人员家中的低质量地震台网能够为确定地震及其余震的特征提供重要数据(见冯·希勒布兰特·安德拉德和瓦纳科雷的观点)。公民地震台网对于识别和确定破坏性余震的可能性尤为重要，这对于应对破坏性主震的人来说是至关重要的信息。-BG低成本地震台可以帮助确定地震及其余震的特征。
On 14 August 2021, the moment magnitude (Mw) 7.2 Nippes earthquake in Haiti occurred within the same fault zone as its devastating 2010 Mw 7.0 predecessor, but struck the country when field access was limited by insecurity and conventional seismometers from the national network were inoperative. A network of citizen seismometers installed in 2019 provided near-field data critical to rapidly understand the mechanism of the mainshock and monitor its aftershock sequence. Their real-time data defined two aftershock clusters that coincide with two areas of coseismic slip derived from inversions of conventional seismological and geodetic data. Machine learning applied to data from the citizen seismometer closest to the mainshock allows us to forecast aftershocks as accurately as with the network-derived catalog. This shows the utility of citizen science contributing to our understanding of a major earthquake. Description Homebound seismology The 2021 Nippes earthquake in Haiti destroyed up to 140,000 homes and killed several thousand people. Despite the large seismic hazard there, Haiti only has a few high-quality seismic stations. Calais et al. show that a low-quality seismic network hosted in the homes of volunteers is capable of providing important data for characterizing an earthquake and its aftershocks (see the Perspective by von Hillebrandt-Andrade and Vanacore). The citizen seismic network was particularly important for identifying and determining the likelihood of damaging aftershocks, which is vital information for those responding to the destructive mainshock. —BG Low-cost seismic stations can help to characterize an earthquake and its aftershocks.
影响因子：
18.3
作者：
Elliott, J. R.;Jolivet, R.;Stevens, V. L.
通讯作者：
Stevens, V. L.