August 12, 2025 | 07:19 am
Mount Merapi surrounded by four regencies in the province of Central Java and the Special Region of Yogyakarta (DIY), Indonesia, is currently still on alert status or Level III. This is due to the volcanic activity in Mount Merapi, which is still quite high during the peak of the dry season falling in July-August 2025. Effusive eruption activities still frequently occur, so its status has not been downgraded since it was first established in November 2020.
The Geological Disaster Technology Research and Development Center (BPPTKG) Yogyakarta stated that in the observation of the past week, 1-7 August 2025, the weather around Mount Merapi was generally clear in the morning and at night, while it was foggy from noon to late afternoon.
Mount Merapi's Activities in a Week
During that week, there was one occurrence of hot clouds avalanches towards the upstream of Krasak River with a sliding distance of 800 meters. Additionally, within the week, Mount Merapi was observed to have emitted 110 times of lava avalanches that spread towards the upstream of Boyong River (sliding distance 1,800 meters), upstream of Krasak River (maximum 1,800 meters), upstream of Bebeng River (maximum 1,800 meters), and upstream of Sat/Putih River (maximum 2,000 meters).
"Based on aerial photograph analysis, the volume of the southwest side dome increased by about 90,500 cubic meters in a week, reaching 4,101,500 cubic meters. Meanwhile, the volume of the central dome remained relatively constant at 2,369,900 cubic meters," said the Head of BPPTKG Yogyakarta, Agus Budi Santoso, on Monday.
Despite entering the dry season, rain still poured around Mount Merapi in early August. BPPTKG Yogyakarta noted that rain had occurred around the Mount Merapi Observation Post with the highest rainfall intensity recorded on 5 August 2025, at Kaliurang Post, reaching 20.72 mm/hour for 71 minutes.
"However, the rain did not lead to an increase in flows or lahars in the rivers originating from Mount Merapi," he said.
Tourists Warned to Stay Alert
With the volcanic activity of Mount Merapi still quite high, BPPTKG Yogyakarta urged the public and tourists to remain vigilant and adhere to the existing advice. Currently, the potential hazards have not changed in the form of lava avalanches and hot clouds in the danger zone with established radii.
"Stakeholders in Mount Merapi disaster management are recommended to continue mitigation efforts in facing the threat of Mount Merapi eruption," said Agus.
The public is also asked not to engage in any activities in the potential hazardous areas around Mount Merapi.
Editor’s Choice: Mount Merapi's Peak Drenched by Rain, Tourists Advised to Be Cautious
Click here to get the latest news updates from Tempo on Google News
Mount Dukono and Mount Ile Lewotolok in Indonesia Erupted Today
1 hari lalu
Mount Dukono, located in the northern part of Halmahera Island, North Maluku, Indonesia erupted on Sunday, August 10, 2025.
Mount Lewotobi Laki-laki Erupts Again; Cold Lava Alert Issued
3 hari lalu
Mount Lewotobi Laki-laki, which stands at 1,548 meters above sea level (masl), remains at Alert status, or Level IV, the highest alert status.
Indonesia's Mount Lewotobi Spews 10 Km High Volcanic Ash in Latest Eruption
10 hari lalu
Mount Lewotobi Laki-Laki erupted again on Friday, August 1, 2025, emitting a 10-kilometer ash cloud.
Indonesian Mountains Close Ahead of 80th Independence Day Celebrations
13 hari lalu
Hiking trails of Mount Merbabu and Mount Rinjani have been closed ahead of Indonesia's 80th Independence Day.
Geological Agency Warns of Mount Lewotobi's Explosive Eruption Due to Gas Blockage
16 hari lalu
The Geological Agency has maintained the alert status for Mount Lewotobi Laki-laki in East Flores, East Nusa Tenggara (NTT).
Tour de Ambarrukmo Attracts 1,200 Cyclists to Explore Yogyakarta's Scenic Routes
29 hari lalu
Participants of Tour de Ambarrukmo will traverse through the city of Yogyakarta, the coast of Bantul, the rural areas of Kulon Progo, and the historical temples in Sleman.
Mount Lewotobi Laki-laki Erupts: Ash Plume Reaches 4 Kilometers High
31 hari lalu
The Geological Agency noted that Mount Lewotobi Laki-laki still has a high potential for an explosive eruption.
Top 10 Best Cities to Visit in Indonesia: Bali, Yogyakarta, and More
31 hari lalu
Discover the best cities to visit in Indonesia, from the metropolis of Jakarta and the renowned paradise of Bali to the sacred hidden gem of Semarang.
Save the Children Indonesia Readies Clean Water for Mount Lewotobi Displaced
31 hari lalu
Besides fulfilling children's rights to access clean water and sanitation, Save the Children Indonesia along with CIS Timor also provides psychosocial support.
Alert Level for Mount Lewotobi Stays Elevated After Expelling 18 Kilometers of Ash
32 hari lalu
There is still a supply of magma in the body of Mount Lewotobi Laki-laki, indicating the potential for another explosive eruption.
