Mostrando 10 resultados de: 11
Subtipo de publicación
Article(11)
Publisher
Journal of Volcanology and Geothermal Research(5)
Geophysical Research Letters(3)
Earth, Planets and Space(1)
Eos(1)
Journal of Geophysical Research: Solid Earth(1)
Broadband seismic monitoring of active volcanoes using deterministic and stochastic approaches
ArticleAbstract: We systematically used two approaches to analyze broadband seismic signals for monitoring active volPalabras claves:Autores:Hugo Yepes, Indira Molina, Kumagai H., Maeda T., Mario C. Ruiz, Mayra Vaca, Nakano M., Placios P., Santiago Arrais, Yamashima T.Fuentes:googlescopusAn approach to source characterization of tremor signals associated with eruptions and lahars
ArticleAbstract: Tremor signals are observed in association with eruption activity and lahar descents. Reduced displaPalabras claves:Amplitude source location method, Ejecta volume, High-frequency seismic amplitude, Scaling relation, Volcano MonitoringAutores:Kumagai H., Maeda Y., Mario C. Ruiz, Patricia A. MothesFuentes:googlescopusAscending seismic source during an explosive eruption at Tungurahua volcano, Ecuador
ArticleAbstract: Application of seismic techniques to an explosion event at Tungurahua volcano, Ecuador, provided clePalabras claves:Autores:Hugo Yepes, Kozono T., Kumagai H., Mario C. Ruiz, Placios P.Fuentes:scopusDepth-dependent rupture mode along the Ecuador-Colombia subduction zone
ArticleAbstract: A large earthquake (Mw 7.7) occurred on 16 April 2016 within the source region of the 1906 earthquakPalabras claves:centroid moment tensor, megathrust earthquake, plate coupling, Slip inversionAutores:Alexandra P. Alvarado, Chamorro O., Dionicio V., Freddy Vásconez, Gabriela Ponce, Kumagai H., Maeda Y., Mario C. Ruiz, Nakano M., Pedraza García P., Santiago Arrais, Wilson Acero, Yoshimoto M.Fuentes:scopusEnhancing volcano-monitoring capabilities in Ecuador
ArticleAbstract:Palabras claves:Autores:Alexandra P. Alvarado, Caceres V., Cisneros C., Cristina Ramos, Freddy Vásconez, García-Aristizábal A., Gomezjurado L., Hall M.L., Hugo Yepes, Imai T., Indira Molina, Inoue H., Inoue I., Jorge Aguilar, Kumagai H., Liliana Troncoso, Mayra Vaca, Miyakawa K., Mónica Segovia, Nagai T., Nakano M., Paredes M., Patricia A. Mothes, Patricio A. Ramón, Pinajota E., Placios P., Pozo J., Santiago Arrais, Wilson Enríquez, Yamashina T., Yokoe K.Fuentes:googlescopusSeismic tracking of lahars using tremor signals
ArticleAbstract: Debris flows, or lahars, frequently occur in volcanic regions and cause serious disasters to nearbyPalabras claves:Coda wave, Lahar monitoring, Location, Site amplification, TremorAutores:D. Barba, Kumagai H., Maeda T., Nakano M., Placios P.Fuentes:scopusSeismic, petrologic, and geodetic analyses of the 1999 dome-forming eruption of Guagua Pichincha volcano, Ecuador
ArticleAbstract: Guagua Pichincha, located 14 km west of Quito, Ecuador, is a stratovolcano bisected by a horseshoe-sPalabras claves:Al-in-hornblende geobarometer, Deformation, Dome-forming eruption, Finite-difference method, TomographyAutores:García-Aristizábal A., Hugo Yepes, Kumagai H., Monzier M., Pablo Samaniego Ponce, Patricia A. MothesFuentes:googlescopusResonances of a volcanic conduit triggered by repetitive injections of an ash-laden gas
ArticleAbstract: A swarm of long-period (LP) seismic events was recorded in December 2001 before heightened eruptivePalabras claves:Autores:Hugo Yepes, Indira Molina, Kumagai H.Fuentes:scopusSource amplitudes of volcano-seismic signals determined by the amplitude source location method as a quantitative measure of event size
ArticleAbstract: The amplitude source location (ASL) method, which uses high-frequency amplitudes under the assumptioPalabras claves:Isotropic radiation, Magnitude, Scaling relation, scattering, Source amplitudeAutores:Figueroa M.S., Hugo D. Ortiz, Hugo Yepes, Kumagai H., Lacson R., Maeda Y., Mario C. Ruiz, Placios P., Yamashina T.Fuentes:scopusSource process of very-long-period events accompanying long-period signals at Cotopaxi Volcano, Ecuador
ArticleAbstract: Renewed seismic activity of Cotopaxi, Ecuador, began in January 2001 with the increased number of loPalabras claves:crack model, degassing process, dike, long-period event, very-long-period event, Waveform inversionAutores:García-Aristizábal A., Indira Molina, Kumagai H., Nakano M., Patricia A. MothesFuentes:googlescopus