Babuyan Claro is a stratovolcano with an elevation of 843 meters (2,766 ft) and a base diameter of about 8 kilometers (5.0 mi) located in the center of Babuyan Island (also referred to as Babuyan Claro Island).[1][3] It has four morphologically-fresh volcanic edifices: Mt. Cayonan in the south, Mt. Naydi and Mt. Dionisio in the southeast. Babuyan Claro has two very well-preserved craters 300 and 400 meters (980 and 1,310 ft) in diameter.[2]
The Askedna Hot Spring is located at the southern basal slope of Babuyan Claro. It has a temperature range of 44.6 to 50.2 °C (112.3 to 122.4 °F). The water is slightly acidic and the silica content is relatively high since the spring flows directly from lava flow deposits. The spring water can be classified as near-neutral sodium chloride brine.[1]
In July 1993, there were reports of earthquakes and alleged drying up of vegetation at the upper slopes and summit area of the volcano but volcanologists said the earthquakes were of tectonic in origin and there was no significant change in the volcanic activity.[1]
In February 2004, there were reports of grayish steam clouds hovering above the summit but volcanologists from PHIVOLCS said the seismic swarm was of tectonic origin and the steaming activity was only wispy to weak.[1]
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