Results 31 to 40 of about 1,217 (140)

Procesamiento Digital de Señales Sismicas con Matlab

Revista de Investigación de Física, 2007
El objetivo del presente trabajo es implementar un algoritmo para la identificación de los parámetros de la onda sísmica como son: las fases P y S, amplitud, periodo y duración.
César Omar Jiménez Tintaya
doaj   +1 more source

Fine‐Scale Segmentation and Spatiotemporal Variability of the 2010 Mw 8.8 Maule Aftershock Sequence Revealed by a Deep‐Learning‐Based Earthquake Catalog

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 4, April 2026.
Abstract We re‐examine the aftershock sequence of the Mw 8.8 Maule earthquake in south‐central Chile to understand how seismicity, magnitude‐frequency distribution, and fault structure vary along the rupture zone. Using the International Maule Aftershock Deployment (IMAD) data set, we analyze 10 months of continuous data from approximately 156 ...
Rodrigo Flores‐Allende, Léonard Seydoux, Éric Beaucé, Luis Fabian Bonilla, Philippe Gueguen, Claudio Satriano   +5 more
wiley   +1 more source

Climate change and El Niño Southern Oscillation influence on mixing regime and water quality in a deep tropical mountain lake

Limnology and Oceanography Letters, Volume 11, Issue 2, March 2026.
Abstract Climate change alters lake functioning, water quality, and aquatic biota; yet our understanding of this process is poor for deep tropical mountain lakes. A 15‐yr dataset (2010–2024) from Lake Atitlán, Guatemala, revealed climate change impacts on a tropical lake ecosystem and showed a warming trend of 0.34 ± 0.14°C per decade that intensified ...
Ovidio García‐Oliva, Margaret A. Dix, Mónica M. Martínez‐Fausto, Juan Estuardo Bocel, Jorge Garcia‐Polo, Natalia Vargas‐López, Fátima Reyes Morales, Sharon van Tuylen, Michael W. Dix   +8 more
wiley   +1 more source

Radial S wave velocity structure of the D” region under a spot of the D" region under a spot of the east central Pacific Ocean

Geofísica Internacional, 2012
Se determinó la estructura radial de velocidades para la onda S en la base del manto en un área del Océano Pacífico centro-oriental centrada en los 19°N, 132°O. Se aplicó la técnica de la constante de disipación en el dominio de la frecuencia a las ondas
Luis F. Terán-Mendieta, Raúl Valenzuela Wong   +1 more
doaj   +1 more source

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

Earth 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, Diego Pons, Talia G. Anderson, Irma Ayes Rivera, Kevin J. Anchukaitis   +4 more
wiley   +1 more source

Método de inversión generalizada: aplicación en sismología y posibilidades en ingeniería civil [PDF]

, 1985
El método de inversión generalizada ha sido aplicado extensamente en Geofísica, y en particular en Sismología, con sumo éxito. En este trabajo se describe en forma sucinta, pero suficientemente clara, dicho método, considerando dos casos distintos.
Ledesma Villalba, Alberto, Canas Torres, José Antonio   +1 more
core   +1 more source

Resolución del problema directo de tomografía sísmica: trazado de rayos sísmicos en el clúster de Pisayambo

La Granja: Revista de Ciencias de la Vida, 2012
Este ensayo muestra los resultados prácticos de la aplicación del principio de Fermat para trazar rayos sísmicos a través de un medio heterogéneo. Para comenzar se muestran las ventajas de aplicar este principio físico en lugar de resolver las ecuaciones
Sebastián Araujo
doaj   +1 more source

Impact assessment of earthquake early warning systems in Central America

Earthquake Spectra, Volume 41, Issue 4, Page 3094-3122, November 2025.
Earthquake Early Warning (EEW) systems aim to alert users in advance of imminent shaking, enabling them to take action. In collaboration with local seismic agencies, the Swiss Seismological Service (SED), has developed national EEW systems across Central America.
Benazir Orihuela, Athanasios N Papadopoulos, John Clinton, Griselda Marroquin, Marino Protti, Wilfried Strauch, Robin Yani‐Quiyuch, Laurentiu Danciu, Stefan Wiemer   +8 more
wiley   +1 more source

Locations of aftershocks of the Oaxaca earthquake using smoked paper recorders and digital event recorders

Geofísica Internacional, 1978
Dentro de un proyecto cooperativo entre ClCESE y UCSD, .se instaló una red de 15 sismográfos en la región de las réplicas del temblor de Oaxaca (Ms= 7.8), de Noviembre 29, 1978.
A. Reyes, J. González, L. Munguia, A. Nava, F. Nernon, J. N. Brune   +5 more
doaj   +1 more source

Seismic Waveform Inversion for 3‐D S‐ and P‐Wave Velocity Structure in D″ Beneath Central America and the Caribbean: Evidence for Chemical Heterogeneity Due To MORB Accumulation

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 10, October 2025.
Abstract We perform inversion of seismic waveforms for three‐dimensional (3‐D) models of shear and compressional seismic wave velocities (VS ${V}_{S}$ and VP ${V}_{P}$, respectively) in the lowermost 400 km of the mantle (the D″ region) beneath Central America and the Caribbean. We use data primarily from USArray stations.
Rei Sato, Kenji Kawai, Robert J. Geller
wiley   +1 more source