A global assessment of SAOCOM-1 L-band stripmap data for InSAR characterization of volcanic, tectonic, cryospheric, and anthropogenic deformation

F Delgado, T Shreve, S Borgstrom… - … on Geoscience and …, 2024 - ieeexplore.ieee.org
SAOCOM-1 is an L-band (23.5 cm) synthetic aperture radar (SAR) constellation made up of
two satellites launched in 2018 and 2020 by Comisión Nacional de Actividades Espaciales …

Accelerating seafloor uplift of submarine caldera near Sofugan Volcano, Japan, resolved by distant tsunami recordings

T Kubota, O Sandanbata, T Saito… - Geophysical Research …, 2024 - Wiley Online Library
On 8 October 2023 UTC, significant tsunamis were observed around Japan without any
major tsunamigenic earthquake, associated with a series of 14 successive minor …

Deformation of Mauna Loa before, during, and after its 2022 eruption

AP Ellis, IA Johanson, MP Poland - Bulletin of Volcanology, 2025 - Springer
Abstract Mauna Loa on the Island of Hawaiʻi erupted on 27 November 2022, the first
eruption since 1984, which marked the culmination of decades-long period of non-eruptive …

Quantifying Magma Overpressure Beneath a Submarine Caldera: A Mechanical Modeling Approach to Tsunamigenic Trapdoor Faulting Near Kita‐Ioto Island, Japan

O Sandanbata, T Saito - Journal of Geophysical Research …, 2024 - Wiley Online Library
Submarine volcano monitoring is vital for assessing volcanic hazards but challenging in
remote and inaccessible environments. In the vicinity of Kita‐Ioto Island, south of Japan …

Inferring 3D displacement time series through InSAR measurements and potential field theory in volcanic areas

A Barone, M Fedi, A Pepe, P Mastro, P Tizzani… - Scientific Reports, 2025 - nature.com
Interferometric SAR (InSAR) techniques allow the detection of ground displacements along
the satellite line-of-sight (LOS) directions. Moreover, InSAR can discriminate the ground …

Seismo‐acoustic characterization of the 2018 Sierra Negra Caldera resurgence and fissure eruption in the Galápagos Islands

HD Ortiz, RS Matoza, B Bernard… - Journal of …, 2024 - Wiley Online Library
Abstract The 2018 eruption of Sierra Negra volcano, Galápagos, Ecuador has provided new
insights into the mechanisms of caldera resurgence, subsidence, and fissuring at basaltic …

Sierra Negra, Galápagos: A resurgent-block basaltic caldera

V Acocella, F Galetto, F Amelung… - Geological Society of …, 2024 - pubs.geoscienceworld.org
Caldera resurgence is rare at mafic volcanoes. Here we consider the well-exposed
resurgence at Sierra Negra caldera (Galápagos) to investigate how resurgence develops at …

Segmented trapdoor fault in Kita‐Ioto Caldera, Japan: Insights from millimeter tsunami waves captured by an array network of ocean bottom pressure gauges

O Sandanbata, T Saito - Journal of Geophysical Research …, 2024 - Wiley Online Library
Submarine calderas with active magma supply have recently been identified as potential
sources of volcanic tsunamis due to sudden meter‐scale uplift by trapdoor faulting, occurring …

Surface deformation dynamics of Sierra Negra's 2018 eruption: insights from InSAR, optical flow and pixel offset tracking

M Mohammadnia, S Vajedian… - Geophysical Journal …, 2025 - academic.oup.com
Monitoring volcanic deformation is crucial for understanding volcanic behaviour, but
challenges like limited global navigation satellite system (GNSS) coverage, infrequent …

Intrusive mechanism of the 2018 Sierra Negra eruption, constrained by 4D tomographic images

M Rezaeifar, CJ Bean, J Grannell, M Möllhoff… - Journal of Volcanology …, 2024 - Elsevier
Understanding the mechanisms of magma intrusion underpins our ability to interpret
geophysical monitoring signals at volcanoes and thus issue reliable forecasts of future …