POAS 12.15.2025 скачать в хорошем качестве

POAS 12.15.2025

One of the most active volcanoes of Costa Rica, contains three craters along a N-S line. The frequently visited multi-hued summit crater lakes of the basaltic-to-dacitic volcano are easily accessible by vehicle from the nearby capital city of San José. A N-S-trending fissure cutting the complex stratovolcano extends to the lower N flank, where it has produced the Congo stratovolcano and several lake-filled maars. The southernmost of the two summit crater lakes, Botos, last erupted about 7,500 years ago. The more prominent geothermally heated northern lake, Laguna Caliente, is one of the world's most acidic natural lakes, with a pH of near zero. It has been the site of frequent phreatic and phreatomagmatic eruptions since an eruption was reported in 1828. Eruptions often include geyser-like ejections of crater-lake water. Global Volcanism Program, 2025. [Database] Volcanoes of the World (v. 5.3.2; 30 Sep 2025). Distributed by Smithsonian Institution, compiled by Venzke, E. https://doi.org/10.5479/si.GVP.VOTW5-... Red Sismológica Nacional. (n.d.). Red Sismológica Nacional. Universidad de Costa Rica. Retrieved October 21, 2025, from https://rsn.ucr.ac.cr/