کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6444071 | 1356748 | 2015 | 37 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Multiple seismo-anomalies associated with the M6.1 Ludian earthquake on August 3, 2014
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Multiple seismo-anomalies associated with the M6.1 Ludian earthquake on August 3, 2014 Multiple seismo-anomalies associated with the M6.1 Ludian earthquake on August 3, 2014](/preview/png/6444071.png)
چکیده انگلیسی
Multiple geophysical parameters including groundwater level, water temperature, water radon, crustal deformation, electromagnetic waves and total electron contents (TEC) in the ionosphere, are examined together to investigate pre-earthquake anomalous phenomena associated with the Mw6.1 Ludian earthquake on August 3, 2014. Cross-parameter comparison eliminates anomalies that are detected in one parameter only and examine earthquake-related phenomena in various fields, simultaneously. Retrieved anomalies show that abnormal decreases of water temperature and radon concentration related to anomalous uplift of groundwater levels appeared about 1-8Â days before the earthquake even without contributions from rain. Significant step-like changes are observed from data recorded by strainmeters on July 31 and are consistent with water-related anomalies in timing. No significant anomalies can be found from electromagnetic data through the preliminary observation. In contrast, TEC appeared positive anomalies 1-3Â days before the Ludian earthquake. Although causal mechanisms of the TEC anomalies from stressed rocks are not fully understood, multiple-parameter examination can increase credibility of determination regarding pre-earthquake phenomena.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Asian Earth Sciences - Volume 114, Part 2, 15 December 2015, Pages 352-361
Journal: Journal of Asian Earth Sciences - Volume 114, Part 2, 15 December 2015, Pages 352-361
نویسندگان
Xiaoping Zeng, Yunfang Lin, Weisheng Chen, Zhiqiang Bai, Jann-Yenq Liu, Chieh-Hung Chen,