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Mostrando ítems 41-50 de 73
El deslizamiento del 8 de diciembre de 1994 en el volcán Irazú (Costa Rica): aspectos históricos y geomorfología con base en fotografías aéreas históricas y recientes
(2018)
On December 8th, 1994, at 22:48 (local time), a particular event took place on the northern flank of the Irazú volcano, which was described at that time as a phreatic eruption. Recently, the volcanic nature of this event ...
2006-2007 explosive activity and erupted products of Ubinas volcano (Peru)
(Instituto Geológico, Minero y Metalúrgico - INGEMMETPE, 2008)
[ENG] Ubinas, the most historically active volcano in southern Peru, has shown 24 degassing and ashfall episodes since A.D.1550. A population of ~3500 is living within 12 km of Ubinas and has been periodically affected ...
Mechanisms of Unrest and Eruption at Persistently Restless Volcanoes: Insights From the 2015 Eruption of Telica Volcano, Nicaragua
(Advancing Earh and Space Science, 2019)
Many of Earth's volcanoes experience well‐defined states of “quiescence” and “unrest,” with unrest occasionally culminating in eruption. Some volcanoes, however, experience an unusually protracted (i.e., decades‐long) ...
Long-period seismic events at Ubinas volcano (Peru): their implications and potentiality as monitoring tool
(EGU General Assembly, 2012)
Ubinas volcano (Southern Peru) is an active andesitic stratovolcano, located 75 km East of Arequipa City, with an average occurrence of 6-7 eruptions per century and persistent fumarolic and phreatic activity. The most ...
Risk assessment and mitigation at Copahue Volcano
(Springer, 2016)
"Risk assessment" is a relatively new concept in Argentina, since the veryfirst hazard map was only recently constructed on the basis of the 1992 eruption of Copahue volcano (Patagonia). Copahue is considered a very active ...
Turmoil at Turrialba Volcano (Costa Rica): Degassing and eruptive processes inferred from high-frequency gas monitoring
(Wiley, 2016-08-28)
Eruptive activity at Turrialba Volcano (Costa Rica) has escalated significantly since 2014, causing airport and school closures in the capital city of San José. Whether or not new magma is involved in the current unrest ...
Renewed Explosive Phreatomagmatic Activity at Poás Volcano, Costa Rica in April 2017
(Frontiers in Earth Science, 2018-10-16)
Phreatic and phreatomagmatic eruptions at volcanoes often present no short termprecursory activity, making them a challenge to forecast. Poás volcano, Costa Rica, exhibits cyclic activity with phreatic and some phreatomagmatic ...
Prehistoric to historic volcanic activity at Copahue Volcano
(Springer, 2016)
Copahue is one of the most active volcanic centers in Argentina. Despite the relatively intense volcanic activity its prehistoric events are poorly known. In this work, after a brief introduction on the geological and ...