Yépez M., Trasatti E., Tolomei C., Atzori S., Mothes P., Ruiz M., Samaniego Pablo. (2020). InSAR deformation analysis and source modelling of the Guagua Pichincha Volcano (Ecuador). In :
IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium. Piscataway : IEEE, 6854-6856. IGARSS.International Symposium on Geoscience and Remote Sensing, Waikoloa (USA), 2020/09/26-2020/10/02. ISBN 978-1-7281-6375-8.
Titre du document
InSAR deformation analysis and source modelling of the Guagua Pichincha Volcano (Ecuador)
Yépez M., Trasatti E., Tolomei C., Atzori S., Mothes P., Ruiz M., Samaniego Pablo
In
IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium
Source
Piscataway : IEEE, 2020,
6854-6856 ISBN 978-1-7281-6375-8
Colloque
IGARSS.International Symposium on Geoscience and Remote Sensing, Waikoloa (USA), 2020/09/26-2020/10/02
Guagua Pichincha (4784 m a.s.1.) is a dacite-composed stratovolcano, located 12 km to the west of Quito, Ecuador's capital with over 2.7 million inhabitants. In the last decades, it was affected by seismic activity. Here, we present the results of multi-temporal InSAR (Interferometric SAR) processing over Guagua Pichincha volcano during 2014-2019, and the related volcanic source modelling. Our results show a general inflation of a restricted area of the volcanic edifice, reaching 2.7 cm/yr deformation rate in the inner caldera and a cumulative uplift of more than 10 cm in 5 years. The resolved ground velocities are better fitted adopting an ellipsoidal shaped tensile crack opening at a depth of 700 m below the domes, with its major axis of about 1 km length in the N36°E direction.
