Mapping ground movements caused by mining-induced earthquakes applying satellite radar interferometry

Malinowska, Agnieszka; Witkowski, Wojciech T.; Guzy, Artur; Hejmanowski, Ryszard

doi:10.1016/j.enggeo.2018.10.013

Cited by 48 publications

(33 citation statements)

References 50 publications

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“…Implementation of this model allowed to detect sudden, rapid changes of surface movements in the image of the component of atmospheric phase delay of the radar wave [11]. Moreover, our study conducted following a 4.5-magnitude tremor which occurred on the 29th November 2016 indicates some basic features of such movements [12]. First, the tremor was preceded by very small or no surface movements caused by on-going mining activity.…”

Section: Introductionmentioning

confidence: 87%

“…Afterward, in the subsequent 4-5 days, the surface movements stopped. Thus, the formed local subsidence trough was elliptical, reaching 2.8 km × 1.7 km in size [12]. Investigations conducted so far have revealed that a single mining-induced tremor generates surface displacements if its magnitude is greater than or equal to 4.0.…”

Section: Introductionmentioning

confidence: 99%

“…Although monitoring of surface movements caused by earthquakes attracts a lot of attention, there are not many papers devoted to the displacements resulting from mining-induced seismicity. However, in recent years, several works concerning the impact of mining-induced earthquakes on surface movements have been published [9][10][11][12]. Owczarz and Blachowski analyzed the surface movements induced by the occurrence of mining tremors with a magnitude of 4.8, 4.5 and 3.9 in 'Legnica-Glogow' Copper District (LGOM) [9].…”

Section: Introductionmentioning

confidence: 99%

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An Analysis Applying InSAR of Subsidence Caused by Nearby Mining-Induced Earthquakes

et al. 2019

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Earthquake occurrence is usually unpredictable apart from sites in the vicinity of volcanoes. It is not easy to measure displacements caused by seismic phenomena using classical geodetic methods, which are based on point survey. Therefore, the surveying of ground movements caused by seismic events should be carried out continuously. Nowadays, remote sensing data and InSAR are often applied to monitor ground displacements in areas affected by seismicity. The effects of severe nearby mining-induced earthquakes have been discussed in the paper. The earthquakes occurred in 2017 and had a magnitude of 4.7 and 4.8. The distance between the epicenters of the mining-induced earthquakes was around 1.6 km. The aim of the investigation has been to analyze the spatio-temporal distribution of ground movements caused by the two tremors using the InSAR technique. Superposition of surface displacement has been studied in time and space. The main scientific aim has been to prove that in the areas where high-energy tremors occur, ground movements overlap. Due to proximity between the epicenters, the mining-induced earthquakes caused the formation of a large subsidence trough with the dimension of approximately 1.2 km × 4.2 km and total subsidence of ca. 116 mm. Two-time phases of subsidence were determined with temporal overlapping. The subsidence analysis has enhanced the cognition of the impact of mining-induced seismicity on the kinematics of surface changes. Moreover, the present work supports the thesis that InSAR is a valuable and adequately accurate technique to monitor ground displacements caused by mining induced earthquakes.

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Section: Introductionmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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An Analysis Applying InSAR of Subsidence Caused by Nearby Mining-Induced Earthquakes

et al. 2019

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“…Every year, the region suffers from several seismic events exceeding a magnitude of Mw 4.0. Some of these tremors result in recorded ground-surface subsidences [2,3], most of which are located in already existing subsidence troughs. Figure 3 shows the sum of subsidences (LOS) calculated for the period of 2014-2018.…”

Section: Legnica-glogow Copper Belt Areamentioning

confidence: 99%

“…Synthetic aperture radar interferometry (InSAR) allows the detection of ground-surface changes in a very wide range, from anthropogenic [1][2][3][4] and natural [5][6][7] events having limited spatial range and amplitude, to events having a wider, regional range [8][9][10]. As is the case with any measurement method, the InSAR (differential InSAR (DInSAR), persistent scatterer InSAR (PSInSAR), or small baseline subset (SBAS)) methods also have significant limitations [11].…”

Section: Introductionmentioning

confidence: 99%

Estimation of Tropospheric and Ionospheric Delay in DInSAR Calculations: Case Study of Areas Showing (Natural and Induced) Seismic Activity

2019

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The article presents a proposal to make simultaneous allowance for both ionospheric and tropospheric corrections in differential synthetic aperture radar interferometry (DInSAR) measurements. Atmospheric delay in the interferometric phase may cause the detection of terrain-surface changes to be impossible or significantly distorted. This fact remains of special importance in the case of surface changes that show limited amplitude and spatial range. Two areas were chosen to verify the validity of the proposed solution. The first area includes terrains affected by underground copper-ore mining activity (Poland), which shows high induced seismic activity. Mining tremors recorded in this area cause the terrain surface to locally subside. The authors analyzed three tremors that were recorded in 2016, 2017, and 2019. Each of the tremors exceeded a magnitude of Mw 4.0. The second area is located in the coastal region of Chile, in the Cardenal Caro province. In this case, the authors focused on a series of three earthquakes recorded on 11 March 2010. The strongest of the earthquakes was of Mw 7.0 magnitude. In the first case, calculations were based on obtained data from the Sentinel 1 satellites, and in the second case from the ALOS-1 satellite. It is demonstrated that simultaneous allowance for both the tropospheric and ionospheric corrections significantly improves the final results. The authors were also able to use the analyzed cases to demonstrate that implementation of the corrections does not have negative influence on the range and magnitude of local ground-surface deformations. At the same time, such implementation minimizes local displacement fluctuations and reduces displacement values in areas affected by deformations. The examples used in the article served to show that tropospheric correction is mainly responsible for global corrections (i.e., within the whole analyzed spatial range), while ionospheric correction reduces local fluctuations.

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Study on the Mechanism of Repeated Mining Tremor in Multiple Key Layers: A Typical Case Study

et al. 2022

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Mapping ground movements caused by mining-induced earthquakes applying satellite radar interferometry

Cited by 48 publications

References 50 publications

An Analysis Applying InSAR of Subsidence Caused by Nearby Mining-Induced Earthquakes

An Analysis Applying InSAR of Subsidence Caused by Nearby Mining-Induced Earthquakes

Estimation of Tropospheric and Ionospheric Delay in DInSAR Calculations: Case Study of Areas Showing (Natural and Induced) Seismic Activity

Study on the Mechanism of Repeated Mining Tremor in Multiple Key Layers: A Typical Case Study

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