Costa Rica Volcano Update: Poás Glows Red, Alerts Shift
Costa Rica’s Poás Volcano has been putting on a fiery show, with its crater glowing red from burning sulfur and molten rocks. Scientists from the Volcanological and Seismological Observatory of Costa Rica (OVSICORI-UNA) and the University of Costa Rica (UCR) have been tracking this incandescence—visible light from rocks heated above 500°C—since late April. Recent reports …
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