The Philippine Institute of Volcanology and Seismology said seismic sensors recorded the ash-driven explosion for about 10 minutes although there was no visual observation due to thick clouds covering the volcanos summit.
Ash deposits were observed in Barangays Cogon, San Benon, Gulang-gulang, Tinampo and Monbon, all in Irosin town.
Thirty high-frequency, three low-frequency and one explosion-type quakes were recorded during the past 24-hour observation period. Celso Amo and Helen Flores