description Mahawu fumaroles Overview
The Mahawu fumaroles are geothermal gas vents in and around the summit crater of Mount Mahawu, a stratovolcano in North Sulawesi, Indonesia. Mahawu's crater sometimes contains a small lake, and volcanic observations have recorded fumaroles, solfataras, mud pots, sulfur deposits, and strong hydrogen sulfide odors in the crater area. These features reflect continuing heat and gas release from the volcano's hydrothermal system.
help Mahawu fumaroles FAQ
Where are the Mahawu fumaroles found?
Mahawu fumaroles occur in and around the summit crater of Mount Mahawu in North Sulawesi, Indonesia. The crater may also contain a small lake, and observations include solfataras, mud pots, and sulfur deposits.
What is the difference between a fumarole and a solfatara at Mahawu?
Both are volcanic gas vents, but a solfatara is especially associated with sulfur-rich emissions and sulfur deposition. Mahawu's summit area has been described with both fumaroles and solfataras.
Does Mount Mahawu have a crater lake?
The summit crater sometimes contains a small lake. Its size and presence can change with rainfall, drainage, and volcanic or geothermal conditions.
Why are sulfur deposits visible around Mahawu's vents?
Sulfur-bearing volcanic gases can cool and react near the surface, leaving yellow sulfur deposits around vents. This is one reason fumarolic fields are often recognizable by bright mineral crusts and strong odors.
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