Geological Agency: Gunun Lokon Earthquake Tends To Decline

The Geological Agency is still setting the status of Mount Lokon Alert in Tomohon City, North Sulawesi. BETWEEN A's Head of Polelatan

MANADO - Geological Agency of the Ministry of Energy and Mineral Resources in the evaluation of the status of Level III (Siaga) of Mount Lokon in Tomohon City, North Sulawesi (Sulut) for the period 16 - 22 September 2025 states that the frequency of volcanic seismicity tends to decrease.

"The earthquake of Mount Lokon is dominated by shallow volcanic earthquakes. When viewed from the seismic recording data, it tends to decrease when compared to the activity on September 2, 2025, which at that time was recorded as many as 143 incidents per day," said Head of the Geological Agency, Muhammad Wafid A.N. in a report received in Manado, Antara, Friday, September 26.

Reports shared in the conversation groups BMKG and Stakeholders stated that during that period 10 gusts were recorded, one Tornillo earthquake, 105 shallow volcanic earthquakes, 23 deep volcanic earthquakes, and 32 distant tectonic earthquakes.

Meanwhile, based on the results of visual observations, a thin white smoke gust was observed with a maximum height of about 200 meters above the crater, and at night a hotspot was observed at the bottom of the crater.

Muhammad Wafid hopes that residents will be aware of several potential hazards to the current activity of Mount Lokon, such as the possibility of toxic gases that can get out of the crater at any time.

The next threat of a phreatic eruption (eruption caused by the sudden contact of magma hot vapor with hydrothermal water) and the occurrence of lahars during the rainy season or heavy rain at the top of Mount Lokon with a long duration.

"Based on visual and instrumental observational data and considering potential hazards, the level of activity of Mount Lokon at Level III (Alert)," he said.

The Geological Agency hopes that the community, visitors, tourists and climbers will not move and approach the area within a radius of 2.5 kilometers from Tompaluan Crater.