Philvolc (Philipinne Institute of Volcanology and Seismology) geologist monitor the Mt. Pinatubo CraterLake water (In 1994 - pH 3, temperature 40C).The rain so cold that we rowed over to the protruding magma dome island (in background) to warm ourselves from itís radianting heat!

Philvolcs (Philippine Institute of Volcanology and Seismology) geologist monitor Mount Pinatubo Crater Lake water (In 1994 - pH 3, temperature 40 degree C).The rain so cold that we rowed over to the protruding magma dome island (in background) to warm ourselves from itís radianting heat!