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Observations of two special kinds of tremor at Galeras volcano, Colombia(1989-1991)
Galeras volcano harmonic tremor spasmodic tremor degassing activity resonance crack
2015/10/8
Since the reactivation of Galeras volcano in 1988 its seismic activity has been dominated by a variety of LP waveforms and tremor events. Some of these signals occurred as a response to volcanic activ...
Tornillo seismic events at Galeras volcano, Colombia: a summary and new information from broadband three-component measurements
volcanoes seismic events broadband record tornillos Galeras volcano
2015/10/8
Long-duration events have been recorded at several active, andesitic volcanoes. Their main characteristics are a single, sharp frequency peak, and an exceptionally long coda. Because their seismograms...
The anatomy of a tornillo: puzzles from three-component measurements at Galeras volcano (Colombia)
Galeras tornillo polarizations analytic function parametrization
2015/10/8
Many of the recent ash eruptions of Galeras volcano (Colombia) have been preceded by tornillos. These unusual seismic events of unknown origin have screw-like profiles on seismograms and can last up t...
State-of-the-art of the historical seismology in Colombia
earthquakes historical seismology catalogue intensity
2015/9/14
In Colombia are available a discreet number of historical seismology investigations, dating back 50 years. This paper reviews basic information about earthquakes studies in Colombia, such as primary s...
A landslide susceptibility assessment in urban areas based on existing data: an example from the Iguaná Valley, Medellín City, Colombia
A landslide susceptibility assessment urban areas based existing data Iguaná Valley Medellín City Colombia
2010/10/21
Fast urbanization and the morphological conditions of the Iguaná River Basin, Medellín, Colombia have forced many people to settle on landslide prone slopes as evidenced by extensive landslide induced...
Reassessment of Colombia's tropical glaciers retreat rates: are they bound to disappear during the 2010–2020 decade?
Colombia tropical glaciers retreat rates
2010/1/28
Clear-cut evidences of global environmental change in Colombia are discussed for diverse hydro-climatic records, and illustrated herein for increasing minimum temperature and decreasing annual maximum...
Aquatic Oligochaeta (Annelida: Clitellata) of the Department of Antioquia, Colombia, South America
Aquatic Oligochaeta Enchytraeidae Naididae Naidinae Pristininae Tubificinae Opistocystidae Glossoscolecidae Lumbricidae taxonomy Antioquia Colombia
2009/6/3
Surveys for freshwater Oligochaeta (Annelida, Clitellata) conducted during the years 2002-2006 increase to 10 the
number of species recorded from lentic and lotic habitats in the Department of Antioq...
Relationship between the 1997/98 El Niño and 1999/2001 La Niña events and oil palm tree production in Tumaco, Southwestern Colombia
the 1997/98 El Niñ o 1999/2001 La Niñ a events oil palm tree production Tumaco, Southwestern Colombia
2010/1/25
Although the relationship between ENSO events and oceanographic and meteorological conditions of Southwestern Colombia is well-known, very little work has been done to assess the related socio-economi...