Results 1 to 10 of about 92,290 (189)

Coseismic surface rupture characteristics and earthquake damage analysis of the eastern end of the 2021 MS 7.4 Madoi (Qinghai) earthquake

open access: yesEarthquake Research Advances, 2022
At 02:04 on May 22, 2021, an MS 7.4 earthquake occurred in Madoi County in Qinghai Province, China. This earthquake is the largest seismic event in China since the 2008 MS 8.0 Wenchuan earthquake.
Yanbo Zhang   +8 more
doaj   +1 more source

Fluid Geochemistry within the North China Craton: Spatial Variation and Genesis

open access: yesGeofluids, 2021
The North China Craton (NCC) is a typical representative of the ancient destruction craton. Numerous studies have shown that extensive destruction of the NCC occurred in the east, whereas the western part was only partially modified.
Lu Chang   +5 more
doaj   +1 more source

Hydrochemical characteristics of hot spring waters in the Kangding district related to the Lushan MS = 7.0 earthquake in Sichuan, China [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2015
Hydrogeochemistry of 10 hot springs in the Kangding district was investigated by analyzing cation and anion concentrations in the spring water. The water samples were collected in the 5 days after the Lushan MS = 7.0 earthquake, which occurred on 20 ...
Z. Chen   +8 more
doaj   +1 more source

Automatic Identification of Liquefaction Induced by 2021 Maduo Mw7.3 Earthquake Based on Machine Learning Methods

open access: yesRemote Sensing, 2022
Rapid extraction of liquefaction induced by strong earthquakes is helpful for earthquake intensity assessment and earthquake emergency response. Supervised classification methods are potentially more accurate and do not need pre-earthquake images ...
Peng Liang   +4 more
doaj   +1 more source

Rn and CO2 geochemistry of soil gas across the active fault zones in the capital area of China [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2014
The present work is proposed to investigate the spatiotemporal variations in soil gas Rn and CO2 across the active faults in the capital area of China in order to understand fault activities and assess seismic hazard.
X. Han   +5 more
doaj   +1 more source

Soil gas CO2 emissions from active faults: a case study from the Anninghe—Zemuhe fault, Southeastern Tibetan Plateau, China

open access: yesFrontiers in Earth Science, 2023
Introduction: Carbon dioxide emissions from non-volcanic areas are undervalued in the carbon cycle.Methods: First estimates of diffuse CO2 flux from the Anninghe—Zemuhe fault (AZF), Southeastern Tibetan Plateau, China, which suggests this could equal 15%
Fengli Liu   +13 more
doaj   +1 more source

Using Keyhole Images to Map Soil Liquefaction Induced by the 1966 Xingtai Ms 6.8 and 7.2 Earthquakes, North China

open access: yesRemote Sensing, 2023
In March 1966, Ms 6.8 and 7.2 earthquakes occurred in Xingtai, North China, resulting in widespread soil liquefaction that caused severe infrastructure damage and economic losses.
Yali Guo   +5 more
doaj   +1 more source

The evolution characteristics of rock fracture instability under cyclic loading on the basis of the enhanced LURR

open access: yesFrontiers in Earth Science, 2023
Prospective discrimination of rock instability and fracture is a key problem in mining, slope stability, earthquake triggering, and other research fields.
Shuai Zhang   +4 more
doaj   +1 more source

Advances in the deep tectonics and seismic anisotropy of the Lijiang-Xiaojinhe fault zone in the Sichuan-Yunnan Block, Southwestern China

open access: yesEarthquake Research Advances, 2022
The Sichuan-Yunnan Block (SYB) is located at the SE margin of the Qinghai-Tibetan Plateau (TP). Under the influence of the southeastward movement of material originated from the TP, intense crustal deformation, frequent seismic activity, and complex ...
Peixi Huang, Yuan Gao, Bing Xue
doaj   +1 more source

2022年1月8日青海门源MS6.9地震深部构造背景浅析

open access: yesDizhen xuebao, 2022
2022年1月8日青海境内的托莱山—冷龙岭断裂附近发生了门源MS6.9地震。结合地壳厚度、速度结构及各向异性等资料探讨了门源地震的深部构造特征,揭示了门源地震的发震位置与地壳结构变化的密切关联。结果显示:门源MS6.9地震发生在地壳厚度和vP/vS值都出现快速空间变化的区域;大约在10—20 km深度范围内,震源位于P波速度从浅到深由高速变低速的垂向过渡区,同时也是S波速度和泊松比分布呈现明显横向变化的过渡区域,震源下方存在明显的低速区;冷龙岭断裂两侧相速度的方位各向异性变化比较明显。1月12日的MS5.
Qiong Wang   +4 more
doaj   +1 more source

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