Iván Koulakov
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View article: Tomographic Constraints on a Mid‐Crustal High‐Velocity Body Beneath West‐Central Taiwan: Implications for Passive‐Margin Mafic Additions
Tomographic Constraints on a Mid‐Crustal High‐Velocity Body Beneath West‐Central Taiwan: Implications for Passive‐Margin Mafic Additions Open
Using dense seismic data sets, we present a new 3D velocity model of Taiwan that images a prominent mid‐crustal (∼20–30 km) high‐velocity body beneath west‐central Taiwan. The inclusion of high‐quality post‐2012 recordings from the Central…
View article: Seismic Tomography of a Newborn Volcano
Seismic Tomography of a Newborn Volcano Open
On 19 September 2021, in La Palma, Canary Islands (Spain), a new volcano, later named Tajogaite, erupted. We determined the shallow seismic tomography model of Tajogaite Volcano, including the 3D distributions of Vp, Vs, and Vp/Vs. The tom…
Body Wave Seismic Noise Tomography and Subsurface Characterization for Geothermal Exploration, the Haute-Sorne EGS project, Switzerland Open
A new enhanced geothermal system (EGS) is currently being engineered in the Haute-Sorne region in the Swiss Jura. Passive seismic imaging is conducted in the framework of the project as a viable basement-resolving and affordable technique …
Crustal Structure of Northwestern Iran on the Basis of Regional Seismic Tomography Data Open
This study presents a 3D seismic velocity model of the crust beneath northwestern Iran. The data include arrival times of 76,589 P-waves and 10,796 S-waves from 7245 events recorded by 233 stations. The seismic velocity model presented in …
Seismic velocity changes beneath Ebeko Volcano (Kuril Islands) based on observations in July-August 2021 Open
Here we present seismic velocity changes in the northern part of Paramushir Island, where presently active Ebeko Volcano is located. We use the data of a seismic network that operated in this area in 2021–2022 during a continuous eruption …
View article: What controls structural variations along the Zagros Collision Zone? Insights from geophysical observations and thermo-mechanical modelling
What controls structural variations along the Zagros Collision Zone? Insights from geophysical observations and thermo-mechanical modelling Open
The Zagros Collision Zone is a complex tectonic region formed as a consequence of the collision between Arabia and Eurasia after the subduction of the Neo-Tethys ocean. The NW-SE striking Zagros orogen consists of the following parallel te…
Subsurface anatomy of the Irazú–Turrialba volcanic complex, inferred from the integration of local and ambient seismic tomographic methods Open
SUMMARY Irazú and Turrialba are a twin volcanic complex that marks a distinct stop in volcanism along the Central America volcanic arc. We present a new traveltime velocity model of the crust beneath Irazú and Turrialba volcanoes, Costa Ri…
Data and program codes to reproduce the results presented in "Crustal structure beneath Central Kamchatka inferred from ambient noise tomography" Open
This archive contains the SURF_TOMO code for the surface-wave tomography (Koulakov et al., 2016) and all the necessary files and instructions for reproducing the results presented in the paper “Crustal structure beneath Central Kamchatka i…
Data and program codes to reproduce the results presented in "Crustal structure beneath Central Kamchatka inferred from ambient noise tomography" Open
This archive contains the SURF_TOMO code for the surface-wave tomography (Koulakov et al., 2016) and all the necessary files and instructions for reproducing the results presented in the paper “Crustal structure beneath Central Kamchatka i…
View article: Lithospheric Delamination as the Driving Mechanism of Intermediate-depth Seismicity in the Bucaramanga Nest, Colombia
Lithospheric Delamination as the Driving Mechanism of Intermediate-depth Seismicity in the Bucaramanga Nest, Colombia Open
The Bucaramanga nest (BN) is an area of exceptionally strong intermediate-depth seismicity localized in a narrow zone at 150–170 km depth beneath the continental plate in Colombia. To explain the very unusual mantle seismicity cluster in t…
Multi-station volcano tectonic earthquake monitoring based on transfer learning Open
Introduction: Developing reliable seismic catalogs for volcanoes is essential for investigating underlying volcanic structures. However, owing to the complexity and heterogeneity of volcanic environments, seismic signals are strongly affec…
Spatio-temporal velocity variations observed during the pre-eruptive episode of La Palma 2021 eruption inferred from ambient noise interferometry Open
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 the eruption. In this study…
Crustal Structure Across the Central Dead Sea Transform and Surrounding Areas: Insights Into Tectonic Processes in Continental Transforms Open
New geophysical profiles across the central Dead Sea Transform (DST) near the Sea of Galilee, Israel, and surrounding highlands, augmented by static stress modeling, allow us to study continental transform plate deformation. The DST separa…
Data and program codes to reproduce the results of surface-wave tomography for the Paramushir Island (Kuril Arc) Open
This file contains the files to reproduce the results presented in the article: by Nadezhda Belovezhets, Yaroslav Berezhnev, Ivan Koulakov, Andrey Jakovlev, Sergei Abramenkov, Sergey Z. Smirnov, and Ilyas Abkadyrov (2023). Magma and hydrot…
Data and program codes to reproduce the results of surface-wave tomography for the Paramushir Island (Kuril Arc) Open
This file contains the files to reproduce the results presented in the article: by Nadezhda Belovezhets, Yaroslav Berezhnev, Ivan Koulakov, Andrey Jakovlev, Sergei Abramenkov, Sergey Z. Smirnov, and Ilyas Abkadyrov (2023). Magma and hydrot…
Volcanic Early Warning Using Shannon Entropy: Multiple Cases of Study Open
The search for pre‐eruptive observables that can be used for short‐term volcanic forecast remains a scientific challenge. Pre‐eruptive patterns in seismic data are usually identified by analyzing seismic catalogs (e.g., the number and type…
Data and program codes to reproduce the results of seismic tomography for the Augustine Volcano (Alaska) Open
This file contains the files to reproduce the results presented in the article: by Ivan Koulakov, Saleh Ismail Quasi, and Pavel Izbekov (2023). Structure of shallow magma sources beneath Augustine Volcano (Alaska) inferred from local earth…
Seismic structure beneath the Avacha and Koryaksky volcanoes in Kamchatka based on the data of permanent and temporary networks Open
This file contains the files to reproduce the results presented in the article: Seismic structure beneath the Avacha and Koryaksky volcanoes in Kamchatka based on the data of permanent and temporary networks by Kitsura E., Koulakov I., Jak…
Seismic structure beneath the Avacha and Koryaksky volcanoes in Kamchatka based on the data of permanent and temporary networks Open
This file contains the files to reproduce the results presented in the article: Seismic structure beneath the Avacha and Koryaksky volcanoes in Kamchatka based on the data of permanent and temporary networks by Kitsura E., Koulakov I., Jak…
A multi-station volcano-tectonic earthquakes monitoring based on Transfer Learning techniques. Open
A multi-station volcano-tectonic earthquakes monitoring based on Transfer Learning techniques. Manuel Titos (1), Ligdamis Gutiérrez (2,3), Carmen Benítez (1), Pablo Rey Devesa (2,3), Ivan Koulakov (4) and Jesús. M. Ibáñez (2,3) Institution…
A multi-station volcano-tectonic earthquakes monitoring based on Transfer Learning techniques. Open
A multi-station volcano-tectonic earthquakes monitoring based on Transfer Learning techniques. Manuel Titos (1), Ligdamis Gutiérrez (2,3), Carmen Benítez (1), Pablo Rey Devesa (2,3), Ivan Koulakov (4) and Jesús. M. Ibáñez (2,3) Institution…
Volcanic Eruption Forecasting Using Shannon Entropy: Multiple Cases of Study Open
The search for pre-eruptive observables that can be used for short-term volcanic early warning remains a scientific challenge. Pre-eruptive patterns in seismic data are usually identified by analyzing seismic catalogues (e.g., the number a…
Local Earthquake Seismic Tomography Reveals the Link Between Crustal Structure and Volcanism in Tenerife (Canary Islands) Open
Volcanic activity on Tenerife Island is extremely diverse. Three radial rift zones are characterized by cinder cones from basaltic fissure eruptions. A triple junction in central Tenerife exhibits a complex of merged, predominantly phonoli…
View article: How did tectonics shape the Zagros Collisional Zone? Insights from data observations and numerical models
How did tectonics shape the Zagros Collisional Zone? Insights from data observations and numerical models Open
The Zagros Mountains were formed in the Late Paleogene by the collision of the northern margin of the Arabian platform with the microplates of central Iran, after the closure of the Neotethys ocean. This fold-and-thrust belt extends in a N…
Microseismicity spectral features analysis of the Mutnovsky volcano fumarole fields area Open
Time-frequency analysis of 40-hour seismic records of the temporary seismological network, performed using a systematic visual inspection of seismograms, spectrograms, and signal spectra in small time windows (from 30 s to 10 min), made it…