The August 2019 Piton de la Fournaise (La Réunion Island) Eruption: Analysis of the Multi-Source Deformation Pattern Detected through Sentinel-1 DInSAR Measurements
Piton de la Fournaise is one of the most active worldwide volcanoes, located on the southeastern part of La Réunion Island. In this work, we focus on the eruption that occurred on the southeastern flank of this volcano, inside the Enclos Fouqué caldera, from 11 to 15 August 2019. This distal event w...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-04-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/14/7/1762 |
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| author | Emanuela Valerio Claudio De Luca Riccardo Lanari Mariarosaria Manzo Maurizio Battaglia |
| author_facet | Emanuela Valerio Claudio De Luca Riccardo Lanari Mariarosaria Manzo Maurizio Battaglia |
| author_sort | Emanuela Valerio |
| collection | DOAJ |
| description | Piton de la Fournaise is one of the most active worldwide volcanoes, located on the southeastern part of La Réunion Island. In this work, we focus on the eruption that occurred on the southeastern flank of this volcano, inside the Enclos Fouqué caldera, from 11 to 15 August 2019. This distal event was characterized by the opening of two eruptive fissures and accompanied by shallow volcano–tectonic earthquakes. We exploit the ground displacements using Sentinel-1 Differential Interferometric Synthetic Aperture Radar (DInSAR) measurements, which include the ground deformations generated during both the pre- and co-eruptive phases. To investigate the sources responsible for the detected ground displacements, we perform an analytical modeling of the retrieved DInSAR measurements. Our results reveal the presence of five volcanic sources (i.e., one sill-like source and four dikes), whose concomitant action during the pre- and co-eruptive phases generated the complex detected deformation pattern. The retrieved volcanic sources correlate well with the location of the opened fissures, the spatial distribution and the temporal evolution of the recorded seismicity, and other geophysical evidence already known in the literature. |
| first_indexed | 2024-03-09T11:27:57Z |
| format | Article |
| id | doaj.art-d6483258d37247a8a3cbfe449ec37911 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-09T11:27:57Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-d6483258d37247a8a3cbfe449ec379112023-11-30T23:58:38ZengMDPI AGRemote Sensing2072-42922022-04-01147176210.3390/rs14071762The August 2019 Piton de la Fournaise (La Réunion Island) Eruption: Analysis of the Multi-Source Deformation Pattern Detected through Sentinel-1 DInSAR MeasurementsEmanuela Valerio0Claudio De Luca1Riccardo Lanari2Mariarosaria Manzo3Maurizio Battaglia4Istituto per il Rilevamento Elettromagnetico dell’Ambiente, IREA-CNR, 80124 Napoli, ItalyIstituto per il Rilevamento Elettromagnetico dell’Ambiente, IREA-CNR, 80124 Napoli, ItalyIstituto per il Rilevamento Elettromagnetico dell’Ambiente, IREA-CNR, 80124 Napoli, ItalyIstituto per il Rilevamento Elettromagnetico dell’Ambiente, IREA-CNR, 80124 Napoli, ItalyDipartimento di Scienze della Terra, Sapienza Università di Roma, 00185 Rome, ItalyPiton de la Fournaise is one of the most active worldwide volcanoes, located on the southeastern part of La Réunion Island. In this work, we focus on the eruption that occurred on the southeastern flank of this volcano, inside the Enclos Fouqué caldera, from 11 to 15 August 2019. This distal event was characterized by the opening of two eruptive fissures and accompanied by shallow volcano–tectonic earthquakes. We exploit the ground displacements using Sentinel-1 Differential Interferometric Synthetic Aperture Radar (DInSAR) measurements, which include the ground deformations generated during both the pre- and co-eruptive phases. To investigate the sources responsible for the detected ground displacements, we perform an analytical modeling of the retrieved DInSAR measurements. Our results reveal the presence of five volcanic sources (i.e., one sill-like source and four dikes), whose concomitant action during the pre- and co-eruptive phases generated the complex detected deformation pattern. The retrieved volcanic sources correlate well with the location of the opened fissures, the spatial distribution and the temporal evolution of the recorded seismicity, and other geophysical evidence already known in the literature.https://www.mdpi.com/2072-4292/14/7/1762Piton de la Fournaiseeruptions modelingvolcano deformationSentinel-1 DInSAR measurementsanalytical modelingmulti-source deformation |
| spellingShingle | Emanuela Valerio Claudio De Luca Riccardo Lanari Mariarosaria Manzo Maurizio Battaglia The August 2019 Piton de la Fournaise (La Réunion Island) Eruption: Analysis of the Multi-Source Deformation Pattern Detected through Sentinel-1 DInSAR Measurements Remote Sensing Piton de la Fournaise eruptions modeling volcano deformation Sentinel-1 DInSAR measurements analytical modeling multi-source deformation |
| title | The August 2019 Piton de la Fournaise (La Réunion Island) Eruption: Analysis of the Multi-Source Deformation Pattern Detected through Sentinel-1 DInSAR Measurements |
| title_full | The August 2019 Piton de la Fournaise (La Réunion Island) Eruption: Analysis of the Multi-Source Deformation Pattern Detected through Sentinel-1 DInSAR Measurements |
| title_fullStr | The August 2019 Piton de la Fournaise (La Réunion Island) Eruption: Analysis of the Multi-Source Deformation Pattern Detected through Sentinel-1 DInSAR Measurements |
| title_full_unstemmed | The August 2019 Piton de la Fournaise (La Réunion Island) Eruption: Analysis of the Multi-Source Deformation Pattern Detected through Sentinel-1 DInSAR Measurements |
| title_short | The August 2019 Piton de la Fournaise (La Réunion Island) Eruption: Analysis of the Multi-Source Deformation Pattern Detected through Sentinel-1 DInSAR Measurements |
| title_sort | august 2019 piton de la fournaise la reunion island eruption analysis of the multi source deformation pattern detected through sentinel 1 dinsar measurements |
| topic | Piton de la Fournaise eruptions modeling volcano deformation Sentinel-1 DInSAR measurements analytical modeling multi-source deformation |
| url | https://www.mdpi.com/2072-4292/14/7/1762 |
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