Interesting fact from Geology.com. Seismic activity at Galeras has displayed characteristic signals known as "tornillos". "Tornillo" is Spanish for 'screw', and these seismic signals are so named because their shape on a seismograph resembles a screw with a wide head and tapered tail. At Galeras, these signals are generally regarded as short-term precursors to explosive eruptions.
Isnt this Ironic or what!!!!
A picture of the Galeras volcano near the city and community of Pasto.Over the years,studies shown that the volcano has been active for the past 4,500 years....I know what you're thinking..That's amazing..
A couple weeks there was an article from the webpage,"Wired" stating that there has been a discovery of a new volcano found in central Columbia. Few scientist say that this volcano isn't something you could find in your textbooks. Nevertheless it has revealed what they call a pyroclastic ring that forms a crater. The scientist also found some deposit of pumice near the crater. But as of now, the potential volcano is temporarily know as a hot spring.But there is alot of wonder whether there is magma forming beneath the surface. Personally, I'm looking to see to what happens in the few months with volcano.
You see that crater is forming! Remember that over time volcanoes like Galeras can eventually grow into something humongous.
http://www.wired.com/2015/02/new-volcano-identified-central-colombia/
http://geology.com/volcanoes/galeras/
