Surface deformation and its implications for land degradation after the 2021 Flores earthquake (M7.4) using differential interferometry synthetic aperture radar

Authors

DOI:

https://doi.org/10.15243/jdmlm.2024.121.6819

Keywords:

DInSAR method, Kalaotoa Island, land subsidence, Sentinel-1A, uplift

Abstract

On December 14, 2021, an earthquake with a magnitude of 7.4 originated from the Flores Sea, impacting Kalaotoa Island in Indonesia, resulting in significant structural damage. Macroseismic observations at the site classified that there were 120 buildings slightly damaged, 108 buildings moderately damaged, and 201 buildings heavily damaged. The shakemap shows that Kalaotoa Island experienced VI-VII MMI shaking. The results of the field survey showed many indications of subsidence as many fractures were found in Kalaotoa Island. This study employed Differential Interferometry Synthetic Aperture Radar (DInSAR) to quantify land subsidence and uplift in Kalaotoa Island before and after the earthquake. Sentinel-1A satellite radar data from December 2 and December 14, 2021, were analyzed. The results revealed subsidence of up to 12 cm in Garaupa Raya Village and uplift of up to ±10 cm in Lembang Mate’ne Village. Approximately 50.50% of Kalaotoa Island experienced subsidence (39.4 km²), primarily in Garaupa Village (18.85 km²), while 49.02% of the island experienced uplift (38.2 km²), mostly in Lembang Mate’ne Village (19.03 km²). This spatial analysis underscores the efficacy of DInSAR in detecting and mapping surface deformation, offering critical insights for earthquake preparedness, mitigation efforts for impacted landscape topography, stability soils, structure of ecosystems, and infrastructure resilience.

References

Agarwal, V., Kumar, A., Gee, D., Grebby, S., Gomes, R. and Marsh, S. 2021. Comparative study of groundwater-induced subsidence for London and Delhi using PSInSAR. Remote Sensing 13(23):4741. https://doi.org/10.3390/rs13234741

Arab, S. 2024. Integration of Sentinel-1A radar and SMAP radiometer for soil moisture retrieval over vegetated areas. Sensors 24(7):2217. https://doi.org/10.3390/s24072217

Arnedo, M.A., Rubiano, J.G., Alonso, H., Tejera, A., González, A., González, J., Gil, J.M., Rodríguez, R., Martel, P. and Bolivar, J.P. 2017. Mapping natural radioactivity of soils in the eastern Canary Islands. Journal of Environmental Radioactivity 166. https://doi.org/10.1016/j.jenvrad.2016.07.010

Aslan, G., Çak?r, Z., Ergintav, S., Lasserre, C. and Renard, F. 2018. Analysis of secular ground motions in Istanbul from a long-term InSAR time-series (1992-2017). Remote Sensing 10(3):408. https://doi.org/10.3390/rs10030408

Atzori, S., Hunstad, I., Chini, M., Salvi, S., Tolomei, C., Bignami, C., Stramondo, S., Trasatti, E., Antonioli, A. and Boschi, E. 2009. Finite fault inversion of DInSAR coseismic displacement of the 2009 L'Aquila earthquake (central Italy). Geophysical Research Letters 36(15). https://doi.org/10.1029/2009GL039293

Azmi, S.M. and Md Din, A.H. 2022. Processing Sentinel-1A images using Sentinel application platform software to generate interferogram for measure ground deformation in Kelantan. Journal of Information System and Technology Management 7(25). https://doi.org/10.35631/JISTM.725014

Biswas, R. and Baruah, S. 2019. Assessing site response through ambient noise measurements in a seismic-prone area. Physics & Astronomy International Journal 3(2). https://doi.org/10.15406/paij.2019.03.00161

BMKG. 2021. Survey report on the M7.4 earthquake in Selayar Islands, South Sulawesi. Engineering Seismology Field - BMKG (in Indonesian).

Bonì, R., Bosino, A., Meisina, C., Novellino, A., Bateson, L. and McCormack, H. 2018. A methodology to detect and characterize uplift phenomena in urban areas using Sentinel-1 data. Remote Sensing 10(4):607. https://doi.org/10.3390/rs10040607

Carboni, F., Porreca, M., Valerio, E., Mariarosaria, M., de Luca, C., Azzaro, S., Ercoli, M. and Barchi, M.R. 2022. Surface ruptures and off-fault deformation of the October 2016 central Italy earthquakes from DInSAR data. Scientific Reports 12(1). https://doi.org/10.1038/s41598-022-07068-9

Chang, C.P., Yen, J.Y., Hooper, A., Chou, F.M., Chen, Y.A., Hou, C.S., Hung, W.C. and Lin, M.S. 2010. Monitoring of surface deformation in Northern Taiwan using DInSAR and PSInSAR techniques. Terrestrial, Atmospheric and Oceanic Sciences 21(3). https://doi.org/10.3319/TAO.2009.11.20.01(TH)

Chen, C.W. and Zebker, H.A. 2002. Phase unwrapping for large SAR interferograms: Statistical segmentation and generalized network models. IEEE Transactions on Geoscience and Remote Sensing 40(8). https://doi.org/10.1109/TGRS.2002.802453

Cipriano, T.J.L. and Garcia, E.B. 2019. Hazard experiences and risk reduction and mitigation initiatives of residents in Barangay 843 - Zone 92 in Pandacan, Manila. IOP Conference Series: Earth and Environmental Science 338(1). https://doi.org/10.1088/1755-1315/338/1/012001

Clerici, N., Valbuena Calderón, C.A. and Posada, J.M. 2017. Fusion of Sentinel-1A and Sentinel-2A data for land cover mapping: A case study in the lower Magdalena region, Colombia. Journal of Maps 13(2). https://doi.org/10.1080/17445647.2017.1372316

Crippa, B., Crosetto, M., Biescas, E., Troise, C., Pingue, F. and de Natale, G. 2006. An advanced slip model for the Umbria-Marche earthquake sequence: Coseismic displacements observed by SAR interferometry and model inversion. Geophysical Journal International 164(1). https://doi.org/10.1111/j.1365-246X.2005.02830.x

da Silva, L.D.J., Castro, H.M., Arias, M.I.A., González-Rodríguez, L., Rodríguez-López, L. and Simões, L.M.C. 2022. Signals of surface deformation areas in Central Chile, related to seismic activity-Using the persistent scatterer method and GIS. Applied Sciences (Switzerland) 12(5). https://doi.org/10.3390/app12052575

di Ludovico, D. and di Lodovico, L. 2020. The regional management risk plan. Knowledge, scenarios and prevention projects in a regional context. International Journal of Disaster Risk Reduction 45. https://doi.org/10.1016/j.ijdrr.2019.101465

di Stefano, F., Cuevas-Gonzalez, M., Luzi, G. and Malinverni, E. S. 2022. Assessing levelling and DInSAR for deformation monitoring in seismic region. International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives 43(B3-2022). https://doi.org/10.5194/isprs-archives-XLIII-B3-2022-263-2022

Duross, C.B., Gold, R.D., Dawson, T.E., Scharer, K.M., Kendrick, K.J., Akciz, S.O., Angster, S.J., Bachhuber, J., Bacon, S., Bennett, S.E.K., Blair, L., Brooks, B.A., Bullard, T., Paul Burgess, W., Chupik, C., Defrisco, M., Delano, J., Dolan, J.F., Frost, E., ….… Zinke, R. 2020. Surface displacement distributions for the july 2019 ridgecrest, california, earthquake ruptures. Bulletin of the Seismological Society of America 110(4):1400-1418. https://doi.org/10.1785/0120200058

ESA. 2012. Sentinel-1: ESA's radar observatory mission for GMES operational services. ESA Special Publication 1(1322).

Fabozzi, S., Porchia, A., Fierro, T., Peronace, E., Pagliaroli, A. and Moscatelli, M. 2020. Seismic compression susceptibility in dry loose sandy and silty soil in a seismic microzonation perspective. Engineering Geology 264. https://doi.org/10.1016/j.enggeo.2019.105324

Fang, N., Luo, X., Shen, P., Xie, L., Liu, G., Wei, F., Jiang, K. and Xu, W. 2023. An enhanced spectral diversity coregistration method for dual-polarimetric Sentinel-1A/B TOPS data. Geodesy and Geodynamics 14(5). https://doi.org/10.1016/j.geog.2023.02.003

Ferretti, A., Monti-guarnieri, A., Prati, C. and Rocca, F. 2007a. InSAR Principles (part A): Guidelines for SAR Interferometry Processing and Interpretation (TM-19, February 2007). In InSAR Principles (Issue February).

Ferretti, A., Monti-Guarnieri, A., Prati, C. and Rocca, F. 2007b. Part B InSAR processing: a practical approach. In InSAR Principles: Guidelines for SAR Interferometry Processing and Interpretation.

Gaber, A., Darwish, N. and Koch, M. 2017. Minimizing the residual topography effect on interferograms to improve DInSAR results: Estimating land subsidence in Port-Said City, Egypt. Remote Sensing 9(7). https://doi.org/10.3390/rs9070752

Gao, Y., Wang, X., Dong, C., Ren, J., Zhang, Q. and Huang, Y. 2024. Characteristics and influencing factors of storm surge-induced salinity augmentation in the pearl river estuary, South China. Sustainability 16(6):2254. https://doi.org/10.3390/su16062254

GAR. 2022. Global Assessment Report on Disaster Risk Reduction 2022: Our World at Risk: Transforming Governance for a Resilient Future. In Global Assessment Report on Disaster Risk Reduction.

Geudtner, D., Torres, R., Snoeij, P., Davidson, M. and Rommen, B. 2014. Sentinel-1 system capabilities and applications. 2014 IEEE Geoscience and Remote Sensing Symposium 1457-1460. https://doi.org/10.1109/IGARSS.2014.6946711

Hanssen, R.F. 2001. Radar Interferometry: Data Interpretation and Error Analysis. In: Remote Sensing and Digital Image Processing. Springer Link. https://doi.org/10.1007/0-306-47633-9

Hanssen, R.F. 2002. Data interpretation and error analysis. In Kluwer Academic Publishers (Vol. 91, Issue 5).

Herrera, G., Tomás, R., Lopez-Sanchez, J.M., Delgado, J., Mallorqui, J.J., Duque, S. and Mulas, J. 2007. Advanced DInSAR analysis on mining areas: La Union case study (Murcia, SE Spain). Engineering Geology 90(3-4). https://doi.org/10.1016/j.enggeo.2007.01.001

Jacob, A.W., Notarnicola, C., Suresh, G., Antropov, O., Ge, S., Praks, J., Ban, Y., Pottier, E., Mallorqui Franquet, J.J., Duro, J., Engdahl, M.E., Vicente-Guijalba, F., Lopez-Martinez, C., Lopez-Sanchez, J.M., Litzinger, M., Kristen, H., Mestre-Quereda, A., Ziolkowski, D. and Lavalle, M. 2020. Sentinel-1 InSAR coherence for land cover mapping: A comparison of multiple feature-based classifiers. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 13. https://doi.org/10.1109/JSTARS.2019.2958847

Karca, ?.O. and Erten, G. 2023. DInSAR and elastic dislocation modelling: A case study for the 24 January 2020 Elazig-Sivrice earthquake. Turkish Journal of Remote Sensing 5(1):1-13. https://doi.org/10.51489/tuzal.1187819

Kenner, S.J. and Segall, P. 2000. Postseismic deformation following the 1906 San Francisco earthquake. Journal of Geophysical Research: Solid Earth 105(B6). https://doi.org/10.1029/2000JB900076

Khorrami, M., Shirzaei, M., Ghobadi?Far, K., Werth, S., Carlson, G. and Zhai, G. 2023. Groundwater volume loss in Mexico City constrained by InSAR and grace observations and mechanical models. Geophysical Research Letters 50(5). https://doi.org/10.1029/2022GL101962

Lanari, R., Berardino, P., Bonano, M., Casu, F., Manconi, A., Manunta, M., Manzo, M., Pepe, A., Pepe, S., Sansosti, E., Solaro, G., Tizzani, P. and Zeni, G. 2010. Surface displacements associated with the L'Aquila 2009 Mw 6.3 earthquake (central Italy): New evidence from SBAS-DInSAR time series analysis. Geophysical Research Letters 37(20). https://doi.org/10.1029/2010GL044780

Lawler, J., Lewis, D., Nelson, E., Plantinga, A., Polasky, S., Withey, J., Helmers, D.P., Martinuzzi, S., Pennington, D. and Radeloff, V. 2014. Projected land-use change impacts on ecosystem services in the United States. Proceedings of the National Academy of Sciences 111(20):7492-7497. https://doi.org/10.1073/pnas.1405557111

Maghsoudi, Y., Hooper, A.J., Wright, T.J., Lazecky, M. and Ansari, H. 2022. Characterizing and correcting phase biases in short-term, multilooked interferograms. Remote Sensing of Environment 275. https://doi.org/10.1016/j.rse.2022.113022

Mao, X., Zhang, X,m Su, Y., Mao, K., Lu, P. and Zhang, F. 2022. Nature and Energy Source of the Strong Waveforms Recorded during the 2008 Wenchuan Earthquake. https://doi.org/10.48550/arxiv.2202.11642

Markogiannaki, O., Karavias, A., Bafi, D., Angelou, D. and Parcharidis, I. 2020. A geospatial intelligence application to support post-disaster inspections based on local exposure information and on co-seismic DInSAR results: the case of the Durres (Albania) earthquake on November 26, 2019. Natural Hazards 103(3). https://doi.org/10.1007/s11069-020-04120-7

Marshall, J.D., Jaiswal, K., Gould, N., Turner, F., Lizundia, B. and Barnes, J.C. 2013. Post-earthquake building safety inspection: Lessons from the Canterbury, New Zealand, earthquakes. Earthquake Spectra 29(3). https://doi.org/10.1193/1.4000151

McClellan, J.H., Eisner, L., Liu, E., Iqbal, N., Al-Shuhail, A.A. and Kaka, S.I. 2018. Array processing in microseismic monitoring: Detection, enhancement, and localization of induced seismicity. IEEE Signal Processing Magazine 35(2). https://doi.org/10.1109/MSP.2017.2776798

McGarragh, G., Poulsen, C., Povey, A., Thomas, G., Christensen, M., Sus, O., Schlundt, C., Stapelberg, S., Stengel, M., Grainger, D., McGarragh, G., Poulsen, C., Povey, A., Thomas, G., Christensen, M., Sus, O., Schlundt, C., Stapelberg, S., Stengel, M. and Grainger, D. 2015. SNAP (Sentinel Application Platform) and the ESA Sentinel 3 Toolbox. ESASP, 734.

Meng, Q., Ni, S., Guo, A. and Zhou, Y. 2018. Ground Surface Deformation Caused by the Mw 5.8 Early Strong Aftershock following the 13 November 2016 Mw 7.8 Kaik?ura Mainshock. Seismological Research Letters 89(6):2214-2226. https://doi.org/10.1785/0220180019

Murdzek, R., Malik, H. and Le?niak, A. 2018. The use of the DInSAR method in the monitoring of road damage caused by mining activities. E3S Web of Conferences 36. https://doi.org/10.1051/e3sconf/20183602005

Nurtyawan, R. and Yulanda, M.F. 2020. Lombok earthquakes using DInSAR techniques based on Sentinel 1A data (case study: Lombok, West Nusa Tenggara). IOP Conference Series: Earth and Environmental Science 500(1). https://doi.org/10.1088/1755-1315/500/1/012065

Pacor, F., Felicetta, C., Lanzano, G., Sgobba, S., Puglia, R., D'Amico, M., Russo, E., Baltzopoulos, G. and Iervolino, I. 2018. NESS1: A worldwide collection of strong-motion data to investigate near-source effects. Seismological Research Letters 89(6). https://doi.org/10.1785/0220180149

Panuntun, H., Miyazaki, S., Fukuda, Y. and Orihara, Y. 2018. Probing the Poisson's ratio of poroelastic rebound following the 2011 Mw 9.0 Tohoku earthquake. Geophysical Journal International 215(3). https://doi.org/10.1093/gji/ggy403

Pu, L., Zhou, Z., Li, L., Zhou, L., Shi, J. and Wei, S. 2021. A robust insar phase unwrapping method via phase gradient estimation network. Remote Sensing 13(22):4564. https://doi.org/10.3390/rs13224564

Purba, J., Restele, L.O., Hadini, L.O., Usman, I., Hasria, H. and Harisma, H. 2024. Spatial study of seismic hazard using classical Probabilistic Seismic Hazard Analysis (PSHA) method in the Kendari City area. Indonesian Physical Review 7(3):300-318. https://doi.org/10.29303/ipr.v7i3.325

Qu, N.N., Guang, Z., Zhao, X.A., Jing, C.F. and Lv, J.G. 2010. The analysis of surface deformation based on two-pass and three-pass D-InSAR. International Geoscience and Remote Sensing Symposium (IGARSS). https://doi.org/10.1109/IGARSS.2010.5654001

Rao, X., Miao, F., Liu, R. and Deng, X. 2011. DEM generation of typical mountain area based on InSAR technology. ICSDM 2011 - Proceedings 2011 IEEE International Conference on Spatial Data Mining and Geographical Knowledge Services. https://doi.org/10.1109/ICSDM.2011.5969062

Razi, P., Sumantyo, J.T.S., Yulkifli, Widodo, J., Perissin, D. and Jefriza. 2020. Land deformation modelling of Taiwan earthquake using interferometry technique. Journal of Physics: Conference Series 1481(1). https://doi.org/10.1088/1742-6596/1481/1/012009

Richards, J.A. 2009. Erratum To: Remote Sensing with Imaging Radar. https://doi.org/10.1007/978-3-642-02020-9_10

Rocca, F., Ferretti, A., Monti-Guarnieri, A.V., Prati, C.M. and Massonnet, D. 2007. Part C InSAR processing: a mathematical approach. In InSAR Principles: Guidelines for SAR Interferometry Processing and Interpretation.

Rodriguez-Lloveras, X., Vilà, M., Mora, O., Peoórez, F., Pi, R. and Marturià, J. 2020. Detection of subsidence in the Ebro Delta plain using DInSAR: analysis of the measurements and the factors that control the phenomenon. Proceedings of the International Association of Hydrological Sciences 382. https://doi.org/10.5194/piahs-382-803-2020

Saed, F.G., Noori, A.M., Kalantar, B., Qader, W.M. and Ueda, N. 2022. Earthquake-induced ground deformation assessment via Sentinel-1 radar aided at Darbandikhan Town. Journal of Sensors. https://doi.org/10.1155/2022/2020069

Sandoval, N., Zarges, C.V., Pablo, O.J. and Vásquez, D. 2019. Impacts of coseismic uplift caused by the 2010 8.8 Mw earthquake on the macrobenthic community of the Tubul-Raqui Saltmarsh (Chile). Estuarine, Coastal and Shelf Science 226. https://doi.org/10.1016/j.ecss.2019.106278

Suito, H. 2018. Current status of postseismic deformation following the 2011 tohoku-oki earthquake. Journal of Disaster Research 13(3). https://doi.org/10.20965/jdr.2018.p0503

Supendi, P., Rawlinson, N., Prayitno, B.S., Widiyantoro, S., Simanjuntak, A., Palgunadi, K.H., Kurniawan, A., Marliyani, G.I., Nugraha, A.D., Daryono, D., Anugrah, S.D., Fatchurochman, I., Gunawan, M.T., Sadly, M., Adi, S.P., Karnawati, D. and Arimuko, A. 2022. The Kalaotoa Fault: A newly identified fault that generated the MW 7.3 Flores sea earthquake. Seismic Record 2(3). https://doi.org/10.1785/0320220015

Syazuani, M.S., Edlic, S., Sofiyan, S.M. and Jamilah, M.S. 2022. Preventing saltwater intrusion in the coastal of terengganu, can bris soil system help? IOP Conference Series: Earth and Environmental Science 1019(1). https://doi.org/10.1088/1755-1315/1019/1/012008

Tang, Y., Wang, C., Zhang, H. and Tao, L. 2009. Subsidence monitoring using ascending and descending SAR data based on coherent target DInSAR. Sixth International Symposium on Digital Earth: Data Processing and Applications 7841. https://doi.org/10.1117/12.873214

Taylor, F.W., Mann, P., Bevis, M., Edwards, R.L., Cheng, H., Cutler, K.B., Gray, S.C., Burr, G.S., Beck, J.W., Phillips, D.A., Cabioch, G. and Recy, J. 2005. Rapid forearc uplift and subsidence caused by impinging bathymetric features: Examples from the New Hebrides and Solomon arcs. Tectonics 24(6). https://doi.org/10.1029/2004TC001650

Tran, H. 2023. Active tectonic deformation in the central-lower courses of Cai River, Khanh Hoa Province, Central Vietnam and its significance for the evolution of river and associated geological hazards. Research Square. https://doi.org/10.21203/rs.3.rs-2966962/v1

Tsujie, K. 2001. Osaka city's earthquake preparedness improvement measures. Civil Engineering and Environmental Systems 18(2). https://doi.org/10.1080/02630250108970295

Tzouvaras, M., Danezis, C. and Hadjimitsis, D.G. 2020. Differential SAR interferometry using Sentinel?1 imagery?limitations in monitoring fast moving landslides: The case study of Cyprus. Geosciences (Switzerland) 10(6). https://doi.org/10.3390/geosciences10060236

Valerio, E., Manzo, M., Casu, F., Convertito, V., de Luca, C., Manunta, M., Monterroso, F., Lanari, R. and de Novellis, V. 2020. Seismogenic source model of the 2019, MW 5.9, East-Azerbaijan earthquake (NW Iran) through the inversion of Sentinel-1 DInSAR measurements. Remote Sensing 12(8). https://doi.org/10.3390/rs12081346

Vicente, E., Vilagrosa, A., Ruiz-Yanetti, S., Manrique?Alba, À., González-Sanchis, M., Moutahir, H., Chirino, E., Campo, A.D. and Bellot, J. 2018. Water balance of mediterranean Quercus ilex L. and Pinus halepensis Mill. forests in semiarid climates: A review in a climate change context. Forests 9(7):426. https://doi.org/10.3390/f9070426

Wang, L. 2023. Biocrust reduces the soil erodibility of coral calcareous sand by regulating microbial community and extracellular polymeric substances on tropical coral island, South China sea. Frontiers in Microbiology 14. https://doi.org/10.3389/fmicb.2023.1283073

Wibowo, S.B., Hadmoko, D.S., Isnaeni, Y., Farda, N.M., Putri, A.F.S., Nurani, I. and Supangkat, S.H. 2021. Spatio-temporal distribution of ground deformation due to 2018 Lombok earthquake series. Remote Sensing 13(11):2222. https://doi.org/10.3390/rs13112222

Wilson, B.J., Servais, S., Charles, S.P., Mazzei, V., Gaiser, E., Kominoski, J.S., Richards, J.H. and Troxler, T.G. 2019. Phosphorus alleviation of salinity stress: effects of saltwater intrusion on an everglades freshwater peat marsh. Ecology 100(5). https://doi.org/10.1002/ecy.2672

Xu, X., Sandwell, D.T. and Smith-Konter, B. 2020. Coseismic displacements and surface fractures from Sentinel-1 InSAR: 2019 Ridgecrest earthquakes. Seismological Research Letters 91(4). https://doi.org/10.1785/0220190275

Yan, J., Zhang, Y., Zhang, J., Chen, Y. and Zhang, Z. 2023. Study on the source of debris flow in the northern scenic spot of Changbai Mountain based on multi-source data. Remote Sensing 15(9):2473. https://doi.org/10.3390/rs15092473

Yuan, R., Zhu, J. and Wang, B. 2015. Impact of sea-level rise on saltwater intrusion in the pearl river estuary. Journal of Coastal Research 300:477-487. https://doi.org/10.2112/JCOASTRES-D-13-00063.1

Zhai, M. 2023. SBAS InSAR subsidence monitoring for mining areas based on levelling constraints. Journal of Physics Conference Series 2620(1):012003. https://doi.org/10.1088/1742-6596/2620/1/012003

Zhang, L., Balz, T. and Liao, M. 2012. Satellite SAR geocoding with refined RPC model. ISPRS Journal of Photogrammetry and Remote Sensing 69(April 2012):37-49. https://doi.org/10.1016/j.isprsjprs.2012.02.004

Zhang, Z., Wang, X., Wu, Y., Zhao, Z. and Yang, E. 2021. Applied research on InSAR and GPS data fusion in deformation monitoring. Scientific Programming 2021. https://doi.org/10.1155/2021/3888975

Zhou, C., Gong, H., Chen, B., Li, J., Gao, M., Zhu, F., Chen, W. and Liang, Y. 2017. InSAR time-series analysis of land subsidence under different land use types in the eastern Beijing plain, China. Remote Sensing 9(4). https://doi.org/10.3390/rs9040380

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09-07-2024

Accepted

02-09-2024

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01-10-2024

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Purba, J., Harisma, H., Priadi, R., Amelia, R., Dwilyantari, A. A. I., Jaya, L. M. G., Restele, L. O., & Putra, I. M. W. G. (2024). Surface deformation and its implications for land degradation after the 2021 Flores earthquake (M7.4) using differential interferometry synthetic aperture radar. Journal of Degraded and Mining Lands Management, 12(1), 6819–6831. https://doi.org/10.15243/jdmlm.2024.121.6819

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