# Poás Volcano eruption in Costa Rica

> Live situation record from CLSTR: https://clstr.news/situations/pos-volcano-eruption-in-costa-rica
> Updated: 2026-08-31T15:57:34.000Z. Sources: 11. Developments: 2.

Poás Volcano in Costa Rica experienced a high-energy eruption that ejected debris and incandescent materials approximately 600 meters from the crater. The event caused significant disturbances to the crater lake.

In response to increased seismic activity, eruptions, and gas emissions, the National Commission for Risk Prevention and Emergency Attention (CNE) declared a Green Alert for the Poás Volcano National Park. To protect visitors, the National System of Conservation Areas (SINAC) implemented new safety regulations, including mandatory safety helmets on certain trails and a 50% reduction in daily visitor capacity.

## Timeline

### 2026-08-31: Rincón de la Vieja volcano records 20 eruptions in Costa Rica

Costa Rica's Rincón de la Vieja volcano has recorded at least 20 eruptions since Friday, including one major event that produced a 2,000-meter plume and lahars in the Penjamo River.

2 sources. https://clstr.news/cluster/rincn-de-la-vieja-volcano-records-20-eruptions-in-costa-rica

### 2026-08-27: Poás Volcano eruption triggers new safety rules in Costa Rica

Poás Volcano in Costa Rica has entered a Green Alert following a powerful eruption. The national park remains open but with mandatory helmets, reduced daily visitor capacity, and strict limits at the crater.

9 sources. https://clstr.news/cluster/costa-rica-national-parks-offer-diverse-ecosystems-and-marine-protection

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Cite as: Poás Volcano eruption in Costa Rica. CLSTR, https://clstr.news/situations/pos-volcano-eruption-in-costa-rica