A5028149966- Seismic Waves and Analysis
- Geological and Geophysical Studies Worldwide
- earthquake and tectonic studies
- Geological and Tectonic Studies in Latin America
- Earthquake Detection and Analysis
- Geological and Geochemical Analysis
- Geophysical and Geoelectrical Methods
- Geotourism and Geoheritage Conservation
- Geological and Geophysical Studies
- Geology and Paleoclimatology Research
- Archaeological and Geological Studies
- Seismic Imaging and Inversion Techniques
- Seismology and Earthquake Studies
- Geochemistry and Geologic Mapping
- Geophysical Methods and Applications
- Archaeological and Historical Studies
- Methane Hydrates and Related Phenomena
- Ionosphere and magnetosphere dynamics
- Blind Source Separation Techniques
- Cruise Tourism Development and Management
- Migration, Aging, and Tourism Studies
- Remote Sensing and Land Use
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Ocean Acidification Effects and Responses
- Atmospheric and Environmental Gas Dynamics
Instituto Volcanológico de Canarias
2020-2024
Instituto Tecnológico y de Energías Renovables
2022-2024
Universidad de La Laguna
2020
For the first time, we obtained high-resolution images of Earth's interior La Palma volcanic eruption that occurred in 2021 derived during eruptive process. We present evidence a rapid magmatic rise from base oceanic crust under island to produce an was active for 85 days. This is interpreted as very accelerated and energetic used data 11,349 earthquakes perform travel-time seismic tomography. high-precision earthquake relocations 3D distributions P S-wave velocities highlighting geometry...
On Sept. 19th, 2021, the largest historical eruption on island of La Palma began, which had a significant scientific, social, and economic impact. The 2021 Tajogaite was characterised by short precursors, lasting only 8 days. seismicity started 11th with westward upward migration hypocenters. Permanent GNSS stations recording deformation 12th island's western side, reached more than 15 cm just before eruption. After onset, ground increased, reaching maximum 22nd showing nearly steady...
Over the last 500 years, Tenerife and La Palma (Canary Islands) have suffered several destructive earthquakes, mostly linked to volcanic activity but also generated by regional tectonics. These seismic events can be very shallow reach moderate magnitudes, as observed in recent eruptions archipelago. The islands' geological complexity lead local amplification due site effects. Therefore, detailed situ studies of responses are necessary assess hazard correctly.For these reasons, INVOLCAN has...
On Sept. 19th, 2021, a volcanic eruption began on the island of La Palma (Canary Islands, Spain). The pre-eruptive episode was characterized by seismicity and ground deformation that started only 9.5 days before eruption. In this study, we applied seismic interferometry to data recorded six broadband stations, allowing us estimate velocity variations during weeks preceding About eruption, observed reduction in velocities is registered next eruptive centers opened later. Furthermore, zone...
La Palma island is located in the NW of Canary Islands and one most volcanically active archipelago, therefore existence geothermal resources on highly probable. The main objective this work to detect velocity anomalies potentially related reservoirs island, by achieving a high-resolution seismic model first few kilometres crust using Ambient Noise Tomography (ANT). obtained ANT merged with recent local earthquake tomography model. Our findings reveal two high-velocity zones island's...
Between 2004 and 2005, an increased seismic activity exceeding background levels was recorded in Tenerife, the most populated island of Canary Archipelago. Some earthquakes were felt on island, causing concern about a possible eruption among island's population. Ground deformation analysis, conducted using Envisat satellite data from 2003 to 2010 Independent Component Analysis (ICA) statistical tool, revealed several centimetres within Teide-Pico Viejo volcanic complex. This modelled...
Abstract Seismic tomography provides a window into magmatic plumbing systems; however, obtaining sufficient data for ‘real-time’ imaging is challenging. Until now, syn-eruptive has not been successfully demonstrated. For the first time, we obtained high-resolution images of Earth's interior during an ongoing volcanic eruption. We used from 11,349 earthquakes, most which La Palma eruption (19 September-13 December, 2021), to perform travel-time seismic tomography. present high-precision...
<p>Cumbre Vieja is the most active volcano of Canary Islands since it has been scenario  8 17 historical eruptions in this archipelago. A recent magmatic reactivation started at Cumbre on October 2017, and 9 additional seismic swarms occurred until eruption which September 19, 2021, ended December 13, 2022 after 85 days eruption. Since first day eruption, extending to current days, INVOLCAN performed monitoring SO<sub>2</sub> realesed by...
<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)...
The contrasting dynamics between Mauna Loa and Kīlauea have been studied over the last 100 years from multiple viewpoints. fact that dynamic changes of one volcano trigger a response other indicates connection may exist. Petrological works show direct relationship magmatic systems these two volcanoes is not possible. We analysed DInSAR data GPS measurements ground deformation patterns associated with activity volcanoes. SBAS dataset spans interval 2003 2010, was acquired along ascending...
El Hierro island is one of the most active islands in Canary Islands from a volcanological point view. This reason why imaging internal crustal structure huge importance. The geophysical exploration methods employed on Island, such as gravimetry and seismic tomography, allowed obtaining high-resolution characterization crust’s deep part. However, these did not yield significant information about surface shallower part crust. To gain deeper insight into shallow geological island, we Ambient...
Historic volcanic activity in Tenerife was concentrated within two of the island’s three dorsals and on Teide-Pico Viejo complex located inside Las Cañadas caldera. Eruptions island are primarily characterised by basaltic trachybasaltic fissural eruptions. However, also hosted explosive effusive phonolitic Our study focused analysis 2004–2005 unrest Tenerife, which an onset a ground deformation pattern, heightened on-land seismic activity, changes chemical composition fumaroles Teide...
Ambient Noise Tomography is a geophysical exploration technique that has proven to be highly efficient for studies at different scales and multiple purposes, such as geothermal exploration. In this article, we introduce by reviewing its various steps. Additionally, present some examples of applications from conducted in the Canary Islands (specifically Tenerife, Gran Canaria, La Palma) purposes.The study realized Canaria reveals series low-velocity zones southern eastern parts island, which...
The interaction processes between the two most active Hawaiian volcanoes are still controversial, and despite multiple studies carried out over more than a century, an unambiguous model has yet to be identified. In order provide new insights we compared ground deformation patterns in both using DInSAR SBAS Global Positioning System (GPS)datasets. this work, processed 10 tracks of ENVISAT ASAR satellite images from 20032010, together with available GPS data 15 stations located around summit...
São Jorge is one of the nine islands Azores Archipelago. On March 19, 2022, a seismic crisis began in island, with more than 32,300 earthquakes recorded until May which nearly 300 were felt by population. April 5, an INVOLCAN team travelled to and, collaboration CIVISA/IVAR Universidade dos Açores, carried out soil gas and CO2 diffuse efflux survey monitor activity this volcanic island. The absence visible emissions (fumaroles, hot springs, etc.) at surface environment...
<p>On September 19th, 2021, a volcanic eruption began on La Palma, resulting in significant social, economic and scientific impact. Earthquakes were first recorded 2017, however, the pre-eruptive unrest started Sept. 11st, only few days before eruption. It was characterized by seismic sequence with hypocenters located at depth of less than 10 km ground deformation that reached more 20 cm vertical component GPS. Surprisingly, this episode very short, given large amount...
<p>The Canary Islands are one of the main “sun and beach” tourist destinations in world. As an example, Tenerife received 2018 more than five million tourists. Even so, on island there some that experiencing a decrease touristic afflux. With aim avoiding decline these initiatives have been raised to promote new products experiences as result diversify leisure offer island. Within variety products, urban geotourism is those alternative modalities may...
<p>The 2021 Cumbre Vieja surprised the worldwide volcanological community for its peculiar, unexpected features. Among these are quite explosive character, even having erupted magma a femic composition, long duration (almost three months) and huge volume (more than 200 Mm<sup>3</sup>). The eruption was preceded by seismicity starting in Oct. 2017. However, genuine precursory began only eight days before eruption, with an evident upward migration of...