Costa Rica’s Poás Volcano, a natural wonder and popular tourist destination, has recently been making headlines due to its unusual volcanic activity. Known for its breathtaking crater lake and occasional fumarolic emissions, the Poás has entered a phase of heightened activity that has caught the attention of experts and visitors alike.
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What Makes This Activity Unusual?
In recent weeks, the Poás Volcano has exhibited increased seismic tremors, frequent phreatic eruptions, and significant gas emissions. These events have led to visible plumes of gas and ash rising above the crater, sometimes reaching heights of 200 meters. Experts from the Observatorio Vulcanológico y Sismológico de Costa Rica (OVSICORI) have noted that this level of activity is atypical compared to the volcano’s usual behavior, which generally involves minor gas releases and a stable crater lake.

Usual Behavior of Poás Volcano
Under normal circumstances, the Poás Volcano is relatively calm, with occasional fumarolic activity and the presence of its iconic acidic crater lake. While it has a history of eruptions, these are typically infrequent and less intense than the current activity.
Official Recommendations and Safety Measures
Given the increased activity, authorities have taken precautionary measures to ensure public safety. The National Park has been temporarily closed, and visitors are advised to stay informed through official channels like OVSICORI and SINAC. If you plan to visit the area once it reopens, here are some tips to keep in mind:
- Follow Official Updates: Stay tuned to announcements from OVSICORI and the Ministry of Environment and Energy (MINAE).
- Respect Restricted Areas: Avoid entering zones that are marked as high-risk.
- Be Prepared: If visiting nearby areas, carry protective gear such as masks to shield yourself from potential gas or ash exposure.
A Reminder of Nature’s Power
The recent activity at Poás Volcano serves as a reminder of the dynamic and unpredictable nature of our planet. While it may disrupt plans in the short term, it also offers a unique opportunity to witness the raw power of Earth’s geological processes—safely, of course.
Stay safe, stay informed, and let’s continue to appreciate the incredible natural beauty that Costa Rica has to offer.