A5091812100- Seismic Waves and Analysis
- Seismology and Earthquake Studies
- Earthquake Detection and Analysis
- Seismic Imaging and Inversion Techniques
- Underwater Acoustics Research
- Methane Hydrates and Related Phenomena
- Astro and Planetary Science
- Meteorological Phenomena and Simulations
- Atmospheric and Environmental Gas Dynamics
- Geological Modeling and Analysis
- Planetary Science and Exploration
Universidade dos Açores
2020-2024
Instituto de Investigacao das Pescas e do Mar
2022
<p>On September 19, 2021, a volcanic eruption began at the west flank of Cumbre Vieja, La Palma, most northwestern Canary Islands. The lava flows caused evacuation thousands residents living in vicinity volcano, and 1,219 hectares were covered by flows. After 85 days activity, ended on December 13, 2021. Since visible gas emissions (fumaroles, hot springs, etc.) do not occur surface environment geochemical program for surveillance has been focused mainly diffuse (non-visible)...
Abstract Small meteoroids that enter Earth's atmosphere often go unnoticed because their detection and characterization rely on human observations, introducing observational biases in space time. Acoustic shockwaves from meteoroid ablation convert to infrasound seismic energy, enabling fireball using seismoacoustic methods. We analyzed an unreported 2022 near the Azores, recorded by 26 seismometers two arrays. Through polarization analyses, array methods, 3‐D ray‐tracing, we determined...
Abstract The 2022’s seismo-volcanic crisis on São Jorge Island of the Azores archipelago has provided an opportunity to deploy a portable infrasound array as collaborative work between Research Institute for Volcanology and Risk Assessment (IVAR) University (UAc) Florence (UniFI). four-element array, SJ1, became operational 2 April 2022. Despite being deployed in first stage monitor activities related volcanic unrest Island, SJ1 worked supporting tool existing IMS station IS42, located...
Located in the middle of North Atlantic Ocean, São Jorge is a volcanic island that belongs to central group Azores Archipelago, Portugal. Very steep, with 54 km long and 7 wide, different from all other archipelago’s islands, being itself WNW-ESE oriented fissure system composed four units.Since March 19, 2022, seismovolcanic crisis has been ongoing beneath active Manadas Volcanic Fissure System on western half island, where historical eruptions occurred 1580 1808. This...
Small meteoroids that enter Earth's atmosphere often go unnoticed because their detection and characterization rely on human observations, introducing observational biases in space time. Acoustic shockwaves from meteoroid ablation convert to infrasound seismic energy, enabling fireball using seismoacoustic methods. We analyzed an unreported 2022 near the Azores, recorded by 26 seismometers two arrays. Through polarization analyses, array methods, 3-D ray-tracing, we determined terminal blast...
<p>With the advent of civil aviation and growth in air traffic, problem volcanic ash encounter has become an issue importance as a prompt response to eruptions is required mitigate impact hazard on aviation. Many volcanoes worldwide are poorly monitored, most time notifications reported mainly based satellite observations or visual observations. Among ground-based volcano monitoring techniques, infrasound only one capable detecting explosive from distances thousands...
Abstract The 2022’s seismo-volcanic crisis on São Jorge Island of the Azores archipelago, has provided an opportunity to deploy a portable infrasound array (SJ1), in collaborative work between Research Institute for Volcanology and Risk Assessment (IVAR), University (UAc), Florence (UniFI). This 4-element became operational 2nd April 2022. Despite being deployed first stage monitor activities related volcanic unrest Island, SJ1 integrated monitoring network region association with IMS...
<p>Stromboli is one of the most active volcanoes on Earth with a continuous explosive activity and persistent degassing since at least 3-7 AD (Rossi et al., 2000). Being an open conduit volcano, its spectacular basaltic explosions interspersed by lava fountains occurring every ≈10 minutes (Ripepe 2002) make it probably world's best-know best-monitored volcano.</p><p>On 3<sup>rd </sup>July 2019 14:45:43 UTC...