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Pregled bibliografske jedinice broj: 1169128

Ground displacement over Petrinja area caused by earthquake M6.2: interdisciplinary analysis of geodesy and geology based on analysis from SAR Sentinel-1 data


Bjelotomić Oršulić, Olga; Korbar, Tvrtko; Markovinović, Danko; Varga, Matej; Bašić, Tomislav
Ground displacement over Petrinja area caused by earthquake M6.2: interdisciplinary analysis of geodesy and geology based on analysis from SAR Sentinel-1 data // EGU General Assembley 2021 - vEGU21: Gather Online
Beč, Austrija, virtualno: Copernicus GmbH, 2021. doi:10.5194/egusphere-egu21-16582 (predavanje, međunarodna recenzija, pp prezentacija, znanstveni)


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Naslov
Ground displacement over Petrinja area caused by earthquake M6.2: interdisciplinary analysis of geodesy and geology based on analysis from SAR Sentinel-1 data

Autori
Bjelotomić Oršulić, Olga ; Korbar, Tvrtko ; Markovinović, Danko ; Varga, Matej ; Bašić, Tomislav

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, pp prezentacija, znanstveni

Skup
EGU General Assembley 2021 - vEGU21: Gather Online

Mjesto i datum
Beč, Austrija, virtualno, 19.-30.4.2021

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
earthquake, ground motion, SAR analysis, displacement

Sažetak
At the very end of the year 2020, at 29th of December, hazard earthquake of M=6.2 hit near Petrinja, at NW of Croatia. Earthquake have been felt in a circumstance of a 400 kilometers, leaving in an epicenter vicinity inconceivable damage, devastated towns and obstructed lives. In order to obtain the first emergency crisis numbers over the impact of the earthquake on a ground motion, we have analyzed open satellite radar images of Copernicus Sentinel-1 along with the seismic faults. Multiple spatio-temporal Copernicus Sentinel-1 C-SAR images were used and processed for the differentiating the before and after earthquake state of the art. This presentation shows the results of the SAR conducted analysis, with the results of ground displacement in vertical up-down and horizontal east-west direction. The results show the vertical ground displacement to extent of -12 cm at southern area to +22cm at north-west part of a wide area covered by the earthquake impact regarding the epicenter. The horizontal displacement is detected in range between 30 cm towards west and 40 cm towards east is detected around the epicenter area, and +/-5cm horizontal displacement over a wider affected area indicate a spatial extent and hazardous impact the mainshock event made. The SAR results were verified by including the analysis over one station from the national positioning reference frame CROPOS. Accordingly, we obtained matching results of 5 cm easting shift and -3 cm subsidence on Sisak GNSS CROPOS station which coressponds to our SAR findings. Furthermore, geological interepretation of new findings is given based on results detecting Pokupsko and Petrinja fault.

Izvorni jezik
Engleski

Znanstvena područja
Geologija, Geofizika, Geodezija



POVEZANOST RADA


Citiraj ovu publikaciju:

Bjelotomić Oršulić, Olga; Korbar, Tvrtko; Markovinović, Danko; Varga, Matej; Bašić, Tomislav
Ground displacement over Petrinja area caused by earthquake M6.2: interdisciplinary analysis of geodesy and geology based on analysis from SAR Sentinel-1 data // EGU General Assembley 2021 - vEGU21: Gather Online
Beč, Austrija, virtualno: Copernicus GmbH, 2021. doi:10.5194/egusphere-egu21-16582 (predavanje, međunarodna recenzija, pp prezentacija, znanstveni)
Bjelotomić Oršulić, O., Korbar, T., Markovinović, D., Varga, M. & Bašić, T. (2021) Ground displacement over Petrinja area caused by earthquake M6.2: interdisciplinary analysis of geodesy and geology based on analysis from SAR Sentinel-1 data. U: EGU General Assembley 2021 - vEGU21: Gather Online doi:10.5194/egusphere-egu21-16582.
@article{article, author = {Bjelotomi\'{c} Or\v{s}uli\'{c}, Olga and Korbar, Tvrtko and Markovinovi\'{c}, Danko and Varga, Matej and Ba\v{s}i\'{c}, Tomislav}, year = {2021}, DOI = {10.5194/egusphere-egu21-16582}, keywords = {earthquake, ground motion, SAR analysis, displacement}, doi = {10.5194/egusphere-egu21-16582}, title = {Ground displacement over Petrinja area caused by earthquake M6.2: interdisciplinary analysis of geodesy and geology based on analysis from SAR Sentinel-1 data}, keyword = {earthquake, ground motion, SAR analysis, displacement}, publisher = {Copernicus GmbH}, publisherplace = {Be\v{c}, Austrija, virtualno} }
@article{article, author = {Bjelotomi\'{c} Or\v{s}uli\'{c}, Olga and Korbar, Tvrtko and Markovinovi\'{c}, Danko and Varga, Matej and Ba\v{s}i\'{c}, Tomislav}, year = {2021}, DOI = {10.5194/egusphere-egu21-16582}, keywords = {earthquake, ground motion, SAR analysis, displacement}, doi = {10.5194/egusphere-egu21-16582}, title = {Ground displacement over Petrinja area caused by earthquake M6.2: interdisciplinary analysis of geodesy and geology based on analysis from SAR Sentinel-1 data}, keyword = {earthquake, ground motion, SAR analysis, displacement}, publisher = {Copernicus GmbH}, publisherplace = {Be\v{c}, Austrija, virtualno} }

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