Volcanic unrest in Costa Rica stood out today, with three major systems holding elevated alerts. Poas, Rincon de la Vieja, and Turrialba were all reported at Level 2 – Warning with Aviation Yellow advisories.
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In Costa Rica, unrest persisted at Poas, Rincon de la Vieja, and Turrialba. All three maintained Level 2 – Warning with Aviation Yellow.
Source: Smithsonian/USGS GVP Daily Volcanic Activity Report — 28 April 2026
Activity Summary for 28 April 2026
| Volcano | Country | Activity Type | Keynotes |
|---|---|---|---|
| Poas | Costa Rica | Unrest | Ongoing unrest; Alert Level 2 – Warning; Aviation Yellow. |
| Rincon de la Vieja | Costa Rica | Unrest | Ongoing unrest; Alert Level 2 – Warning; Aviation Yellow. |
| Turrialba | Costa Rica | Unrest | Ongoing unrest; Alert Level 2 – Warning; Aviation Yellow. |