Poás Volcano Activity Decreases Following Recent Ash Emissions

Experts from the Volcanological and Seismological Observatory (Ovsicori) in Costa Rica have reported a decrease in gas and ash emissions from Poás Volcano in recent days. The volcano had been exhibiting increased activity, prompting a brief closure of the surrounding national park.

According to vulcanologist Maarten de Moor, the reason for the decline in volcanic activity remains uncertain. However, seismic signals at Poás have also been gradually declining. Ovsicori has not observed any movement of magma to the surface, with the last eruption displaying such characteristics occurring in 2017.

While the degassing at Poás Volcano has decreased, it is still considered active. People in the vicinity can perceive the smell of sulfur dioxide to the west or southwest of the volcano. The upcoming rainy season in Costa Rica is anticipated to have a beneficial impact on reducing the ash and gases emitted by Poás.

Why this matters: The activity at Poás Volcano has implications for public safety and tourism in the surrounding areas. Comprehending the volcano's behavior and monitoring its emissions are vital for mitigating potential risks and ensuring the well-being of nearby communities and visitors to the national park.

Experts anticipate that the hydrothermal system of Poás Volcano will recover during the rainy season, potentially leading to the formation of a new crater lake. They emphasize the importance of water in the degassing of fumaroles and the release of heat and gases from the magma. "The hydrothermal system of the volcano is anticipated to recover, potentially leading to the formation of a new crater lake," explained de Moor.

As Poás Volcano continues to be closely monitored, the decrease in volcanic activity provides some relief to the surrounding areas. However, experts remain vigilant and will continue to assess the volcano's behavior to ensure the safety of the public and provide timely updates on any significant changes in its activity.

Key Takeaways

• Poás Volcano in Costa Rica has seen decreased gas and ash emissions in recent days.
• Seismic signals at Poás have also been gradually declining, with no observed magma movement.
• Poás is still considered active, with sulfur dioxide odor detected in nearby areas.
• The upcoming rainy season is expected to reduce ash and gas emissions from Poás.
• Experts anticipate the volcano's hydrothermal system will recover, potentially forming a new crater lake.