Manado, Sept. 8 -- The Head of the Volcano Security Post (PGA), Armando Manguleh, stated that firelights have been observed from the Tompaluan crater of Mount Lokon in Tomohon City, North Sulawesi, since September 4, 2025.

"The firelights have been visible since September 4, 2025," said Manguleh in Tomohon on Sunday.

The appearance of firelights indicates magma activity rising to the surface, heating the ground, including solfatara.

"That's what causes the firelights visible in the Tompaluan crater," he said.

He said the potential for an eruption is possible due to the still-high activity and rising ground temperatures.

He said the firelights could persist or disappear, depending on seismic activity, continued magma supply, and conti...