Costa Rica earthquake awakens Nicaraguan volcano, which last erupted in 50 B.C: alert level raised

September 8, 2012 MANAGUA – The Apoyeque Volcano, located northwest of the capital, was calm Friday, but officials continued monitoring it for volcanic tremors, a release from the Nicaraguan Institute of Territorial Studies (INETER) said. The agency registered 21 low-intensity volcano-related tremors between Thursday afternoon and Friday morning, prompting the government to issue a green advisory alert. Seismic activity near the volcano, located 10 kilometers northwest of Managua, “decreased Friday morning, but it doesn’t mean that it has disappeared,” INETER Geophysics Director Angélica Muñoz told reporters. She also announced that a group of experts will travel to the volcano to investigate the earthquakes causes. The volcanic tremors began after a magitude- 7.6 earthquake hit neighboring Costa Rica on Wednesday. –Tico Times
The last eruption of the volcano was in 50 B.C. The volcano is capable of VEI 6 stage eruptions.
Four volcanoes in Costa Rica closely monitored after quake: When seeing the after effects of the earthquake in Costa Rica this past week, one thing that needs to be watched closely is the active volcanoes within the country. Even a small shift under one of these giants could cause an eruption. At least four of the seven active volcanoes in the country are in the crosshairs of scientists after the earthquake of 7.6 magnitude occurred on Wednesday in Costa Rica. These are Arenal (Alajuela), Rincon de la Vieja (Guanacaste), Turrialba (Cartago) and Poás (Alajuela). According to specialists agree Volcanological and Seismological Observatory of Costa Rica (OVSICORI-A) and the National Seismological Network (RSN: ICE-UCR), due to the size of the earthquake, it is normal volcanic structures; especially those already vulnerable are affected. There is a rearrangement of material and even chemical changes. The clearest example is the Arenal, where locals reported a noise characteristic of rolling boulders.” We know there is a cave in the north, in the direction of the community of La Palma,” said Maria Martinez geochemistry, OVSICORI. A team of this institution made field visit to the site and will release more information today. “In the Poas, how little we could see the rangers (by weather), report no noticeable landslides and cracks,” he added. However, Raul Mora, the RSN, ensures that the most noticeable changes have been in its lagoon.” It looks much sulfur yellow spots on the lake, which is average at Poás before the earthquake but were not.” In the Turrialba volcano has reported a slight collapse, but “the bottom” of the colossus, rather than volcanic structure.” The emission level is similar to what was observed previously,” said the expert OVSICORI. Because there have been earthquakes there, the RSN yesterday decided to install a seismological station between between that and the Irazu volcano. This is done so that in the medium term is uncertain whether the earthquakes that occur there (as replicas) are the result of a tectonic or volcano itself. Scientists have not yet visited the Rincon de la Vieja, but have received reports from neighbors (who live about 17 miles west of the volcano), who claim that the crystalline water normally receive from a nascent nearby nature has a milky consistency apparently mixed with sulfur. “He also mentioned alleged cracks opened in the north, but we have not confirmed. We also know that, from time to time, there looms a steam plume. That happens from days before the earthquake,” explained Martinez. “We know from experience in other countries that movements after more than 7 degrees of intensity there is the possibility that changes occur in the activity of volcanoes,” said Mora. “We’re not saying there’s a risk. What we say is that it is best to take the pulse investigate,” he said Mora. –Costa Rican Times
This entry was posted in 2012, Dark Ages, Earth Changes, Earth Watch, Earthquake Omens?, High-risk potential hazard zone, Potential Earthchange hotspot, Seismic tremors, Signs of Magnetic Field weakening, Time - Event Acceleration, Volcano Watch. Bookmark the permalink.

5 Responses to Costa Rica earthquake awakens Nicaraguan volcano, which last erupted in 50 B.C: alert level raised

  1. Dennis E. says:

    And so it goes……..The process continues to unfold.


  2. Brandon says:

    Alvin, I’ve noticed that the number of volcanic eruptions for the most part has remained kind of the same and that there hasn’t been a large uptick. It appears things are finally settling down. I think some of us may have cried wolf.
    God bless you,


    • tonic says:

      Since 2002, 792,111 people have lost their lives through earthquakes worldwide.

      A major volcanic eruption (sun blocking, with volumes of unwelcome gases released ) could make this figure look tiny. Sceintists are doing all they can to find a way to predict exactly when an eruption will occur, not because it might happen, but because the threat is always there it will. Hopefully they might find a way to give us warning for above sea level risks, but who knows what is happening under the oceans.?

      Look at El Hirro, nobody can tell you exactly what will happen there. Probably very little, but the fact is there is no sceintific prediction of it’s outcome, and this is only one, that I am aware of. I expect there are others being monitored, but I am not aware of them. The oceans take up a lot of the Earths surface, and a sudden unexpected event could happen anytime.


    • Kim says:

      It never ceases to amaze me the amount of people who don’t believe cataclysmic events have happened periodically all through our Planet’s history and will continue to happen. If a volcano that hasn’t erupted since 50BC erupts, I think it’s time to think maybe we’re living in one such age.


  3. Steve says:

    VEI 6 is Krakatau sized eruption that’s possible, I just had to look it up. The Krakatau explosion was the loudest ever recorded in modern times, heard 3000 miles away and recorded around the world on barographs, whatever those are.


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