Turrialba Volcano

On Wednesday night a massive phreatic eruption spewed ash, rocks and possibly magma from the Turrialba Volcano, located 60 kilometers northeast of Costa Rica's capital, San José. Here are some of the most incredible photos from around the web.

Costa Rica's National Emergency Commission on Thursday raised its alert status from green to yellow – the second highest advisory level – in the Cartago cantons of Turrialba, Jiménez, Alvarado, Oreamuno and Cartago Central following increased activity at the Turrialba Volcano on Wednesday night.

Loud rumblings and ash covering roofs, gardens, roads and cars are the first results of increased activity at Turrialba Volcano, located northeast of the province Cartago, that started late Wednesday evening and continued Thursday.

Volcanologists from the University of Costa Rica’s National Seismological Network (RSN) are installing two video cameras and two thermal cameras at Poás Volcano, one of the most active volcanoes in the country.

Turrialba Volcano National Park is maintaining a green (preventive) alert and is closed to the public.

A National Emergency Commission preventive alert remains in effect in the area.

Residents in four provinces reported seeing the volcanic activity.