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Earthquake Research Advances最新文献

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Pub Date : 2025-01-01
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引用次数: 0
Pub Date : 2025-01-01
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引用次数: 0
Pub Date : 2025-01-01
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引用次数: 0
Pub Date : 2025-01-01
{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":100384,"journal":{"name":"Earthquake Research Advances","volume":"5 3","pages":"Article 100370"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146980663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pub Date : 2025-01-01
{"title":"","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":100384,"journal":{"name":"Earthquake Research Advances","volume":"5 2","pages":"Article 100331"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146380308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pub Date : 2025-01-01
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引用次数: 0
Pub Date : 2025-01-01
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引用次数: 0
The representative scientific results of the China Seismo-Electromagnetic Satellite 中国地震电磁卫星的代表性科学成果
Pub Date : 2025-01-01 DOI: 10.1016/j.eqrea.2024.100314
Zhima Zeren, Yanyan Yang, Rui Yan, Zhenxia Zhang, Jie Wang, He Huang, Song Xu, Hengxin Lu, Na Zhou, Jianping Huang
The China Seismo-Electromagnetic Satellite (CSES-01) launched on February 2, 2018, has been steadily operating in orbit for more than six years, exceeding its designed five-year lifespan expectation. The evaluation results suggest that the satellite platform and the majority of payloads are performing well, and still providing reliable measurements. This report briefly introduces the representative scientific results obtained from CSES-01's five-year observations. The first result is the long-term global geophysical field data accumulated for the first time, including the global geomagnetic field, the electromagnetic field and waves in a broad frequency band, the in-situ and profile ionospheric plasma parameters, and the energetic particles. The second result is that a series of data processing and validation methods were obtained, and some of the methods are unique worldwide. The third result is that the geomagnetic field, lithospheric magnetic field, and ionospheric electron density 3D models were built based on CSES-01’ s data. The fourth result is that statistical features of seismic-ionospheric disturbances were revealed and the direct observational evidence for the electromagnetic wave propagation models in the lithosphere-atmosphere-ionosphere was also confirmed. The fifth result is the physical processing of the space weather events was clearly described, showing CSES-01's good capability of monitoring space weather conditions.
中国地震电磁卫星(ses -01)于2018年2月2日发射升空,已在轨道上稳定运行了6年多,超过了5年的设计寿命预期。评估结果表明,卫星平台和大部分有效载荷性能良好,仍然提供可靠的测量。本报告简要介绍了ses -01 5年观测取得的具有代表性的科学成果。第一个结果是首次积累的长期全球地球物理场数据,包括全球地磁场、电磁场和宽频带波、原位和剖面电离层等离子体参数以及高能粒子。第二个结果是获得了一系列数据处理和验证方法,其中一些方法在世界范围内是独一无二的。第三个结果是基于ses -01数据建立了地磁场、岩石圈磁场和电离层电子密度三维模型。第四,揭示了地震-电离层扰动的统计特征,也证实了岩石圈-大气-电离层电磁波传播模型的直接观测证据。五是清晰地描述了空间天气事件的物理处理过程,显示了ses -01良好的空间天气监测能力。
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引用次数: 0
Assessment of seismic spatiotemporal characteristics and migration distance in the Badong section of the Three Gorges Reservoir Area 三峡库区巴东段地震时空特征及迁移距离评价
Pub Date : 2025-01-01 DOI: 10.1016/j.eqrea.2024.100316
Guoyong Duan , Fei Li , Kongwei Wang , Yaobo Xu
This paper aims to elucidate the seismic characteristics of the Three Gorges Reservoir area after impoundment and investigate the seismic source migration. Based on the seismic data analysis from the Badong segment in the Three Gorges Reservoir area, we assessed the local temporal and spatial variations in the frequent earthquakes. Correlation analysis was conducted to investigate the relationship between changes in reservoir water levels and the occurrence of reservoir-induced earthquakes. Additionally, we examined the regularity of earthquake occurrences at the exact location during different periods. Based on the fault mechanics principles, a formula was derived to estimate the length of open and wing-shaped rupture at the hypocenter under the influence of pore or excess pore water pressure. The results reveal that reservoir-induced seismicity demonstrates short-term cycles characterized by alternating "active periods" and "quiet periods," as well as long-term cycles with the combined periods. The probability of earthquakes occurring within one year ​at the epicentre is relatively high and decreases after four years. The derived formula can be utilized to estimate the seismic migration distance at the epicentre in the short term. These research findings provide valuable insights for analyzing the regularity of reservoir-induced earthquake activities and understanding the mechanism of seismic source migration.
本文旨在阐明三峡库区蓄水后的地震特征,探讨震源迁移。通过对三峡库区巴东段地震资料的分析,评价了该地区地震频发的时空变化特征。对水库水位变化与水库诱发地震的关系进行了相关分析。此外,我们还研究了不同时期在同一地点发生地震的规律。根据断裂力学原理,导出了在孔隙或超孔隙水压力作用下震源处开孔破裂和翼状破裂长度的估算公式。结果表明,水库诱发的地震活动表现出以“活跃期”和“安静期”交替为特征的短期周期,以及以组合周期为特征的长期周期。震中一年内发生地震的概率相对较高,四年后发生地震的概率降低。推导出的公式可以在短期内估计地震在震中的偏移距离。这些研究成果为分析水库诱发地震活动规律和认识震源运移机制提供了有价值的见解。
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引用次数: 0
Pub Date : 2025-01-01
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引用次数: 0
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Earthquake Research Advances
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