Results 61 to 70 of about 6,822 (195)

Geochemical characterization of volcanic gas emissions at Santa Ana and San Miguel volcanoes, El Salvador, using remote-sensing and in situ measurements

open access: yesFrontiers in Earth Science, 2023
Volcanic degassing provides important information for the assessment of volcanic hazards. Santa Ana and San Miguel are open vent volcanoes along the Central American Volcanic Arc–CAVA, where the magmatism, basaltic to dacitic, is related to the near ...
Xochilt Gutiérrez   +12 more
doaj   +1 more source

Con fallas activas hay y habrá terremotos [PDF]

open access: yes, 2016
El catastrófico terremoto ocurrido la madrugada del 23 de agosto en la región de Rieti, en Italia central, vuelve a impactarnos al poner de manifiesto el tremendo poder destructor de los sismos de magnitud mayor de 5 y poco profundos en el ámbito ...
Martínez Díaz, José J.
core   +1 more source

Fine Tuning Eruption Source Parameters to Improve Ash Dispersion Simulations: An Example From Eyjafjallajökull 2010

open access: yesJournal of Geophysical Research: Atmospheres, Volume 130, Issue 24, 28 December 2025.
Abstract Volcanic ash dispersion simulations and remote sensing of ash clouds are conducted by volcano observatories and Volcanic Ash Advisory Centres to monitor and forecast the evolution of volcanic ash clouds in space and time in order to mitigate the risk posed by these events on civil aviation.
F. Dioguardi   +5 more
wiley   +1 more source

Esbozo de la astronomía en El Salvador: de la contemplación a la promesa científica [PDF]

open access: yes, 2009
Época antigua. De la colonia al siglo XIX. Siglo XX, del desatino a la guerra. Del Halley al Eclipse de 1991.
Colorado, Jorge Arturo
core  

Geological and Historical‐Based Approaches to Define Scenario Earthquake: Case‐Studies and Application at Municipality‐Scale in Italy

open access: yesEarthquake Engineering &Structural Dynamics, Volume 54, Issue 15, Page 3828-3845, December 2025.
ABSTRACT This study compares two approaches for determining earthquake magnitude (M) and source‐to‐site distance (R) to assess seismic scenarios in Italy. The first method relies on geological criteria from the Italian seismogenic sources database (DISS3.3.0), while the second method uses historical earthquakes from the DBMI‐CPTI15 Italian catalogue ...
Sgobba Sara   +3 more
wiley   +1 more source

The Power of a Name: Toward a Unified Approach to Naming Space Weather Events

open access: yesPerspectives of Earth and Space Scientists, Volume 6, Issue 1, December 2025.
Abstract Our increasing reliance on technology vulnerable to space weather effects underscores the urgent need for effective public communication about these phenomena. While scientific research thrives on precise technical language, broader public engagement necessitates a more accessible and memorable approach.
Sophie Chabanski   +4 more
wiley   +1 more source

Impacts of Spatial and Temporal Station Availability on Gridded Precipitation Products in Central America

open access: yesEarth and Space Science, Volume 12, Issue 12, December 2025.
Abstract Gridded precipitation data sets have become essential for understanding climate variability and long‐term trends; however, their accuracy and reliability strongly depend on the availability and the spatial and temporal distribution of in situ meteorological observations. Here, we evaluate the performance of four gridded precipitation products:
Isabel González‐Méndez   +4 more
wiley   +1 more source

Source parameters, focal mechanisms and stress tensor inversion from moderate earthquakes and its relationship with subduction Zone

open access: yesGeofísica Internacional, 2019
En este trabajo se relocalizaron 9 sismos ocurridos entre 2005 y 2009, con magnitudes entre 4.9 y 5.5, en la zona que corresponde a la triple unión de las placas de Cocos, Rivera y Norte América. Se utilizaron los registros de la estación sísmica RESCO y
Tonatiuh Domínguez R.   +6 more
doaj   +1 more source

Facies Characterization and Volcanic Source Assignment of Marine Tephra Deposits Around São Miguel Island, Azores Archipelago

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.
Abstract Long‐term tephrostratigraphies of volcanic islands such as the Azores are often limited to young and incomplete subaerial records. Here, we present a Pleistocene‐Holocene marine tephra archive around the eastern islands of the Azores based on 22 marine gravity cores.
J. C. Schindlbeck‐Belo   +8 more
wiley   +1 more source

El Grand Tour: un viaje emprendido con la mirada de Ulises [PDF]

open access: yes, 2011
The cultural splendor of the 18th century was most notably marked by a phenomenon known as the Grand Tour. In this article we will discuss the significance of this term as well as the motivations that drove vast numbers of people to embark on this long
Suárez Huerta, Ana María
core   +1 more source

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