Mount Anak Ranakah

Level II – Advisory Activity is above normal. People must stay away from the crater as recommended. Status changed: 19 Oct 2026, 16:17 WITA

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Recommendations

Masyarakat di sekitar Gunung Api Anak Ranakah maupun pengunjung/ pendaki/ wisatawan agar tidak memasuki dan tidak melakukan aktivitas di dalam wilayah radius 1 KM dari pusat Aktivitas Gunung Api Anak Ranakah.

Latest report

24-hour report, 2026-10-22, 00:00-24:00 WITA · Andrik Kurnia Adi Pratama, A.Md.

Visual observation

The volcano is clearly visible to covered by fog 0-I. Crater smoke not observed.

Climatology

Weather clear to overcast, weak wind towards southeast, west and northwest. Air temperature about 15-26°C. Humidity 57-98%.

Seismicity

4 Deep volcanic events, amplitude 1.4-7.2 mm, S-P 1.4-2.2 s, duration 8-12 s.
33 Local tectonic events, amplitude 1-10 mm, S-P 4.3-8.9 s, duration 19-40 s.
23 Distant tectonic events, amplitude 1-24 mm, S-P 10.4-20.6 s, duration 28-56 s.

Observation photo

Latest observation photo.

Location: Manggarai, Nusa Tenggara Timur
Nearest city: Ruteng
Elevation: 2.350 m a.s.l.
Coordinates: -8.6200000, 120.5200000

Observation-post CCTV

Gunung Anak Ranakah belum memiliki CCTV publik.

Volcanic hazard map (KRB)

Official Geological Agency map (2010): areas that may be hit by pyroclastic flows, lava flows, ballistic rocks, ashfall, and lahars. KRB III is closest to the source.

Peta Kawasan Rawan Bencana Gunung Anak Ranakah — Click the map for full size (10,5 MB). Source: Geological Agency – MAGMA Indonesia.

14-day seismicity chart

Volcanic earthquakes per day by type.

View data table

Date	Deep volcanic	Local tectonic	Distant tectonic	More
25 Oct	0	0	0	0
24 Oct	0	0	0	0
23 Oct	0	0	0	0
22 Oct	4	33	23	0
21 Oct	4	21	13	0
20 Oct	5	35	27	0
19 Oct	2	19	27	2
18 Oct	7	32	20	2
17 Oct	0	0	0	0
16 Oct	0	0	0	0
15 Oct	0	0	0	0
14 Oct	0	0	0	0
13 Oct	0	0	0	0
12 Oct	0	0	0	0

Satellite imagery

Daily image date: Choose a layer in the top-right corner of the map. Daily images may be cloudy.

Previous reports

24-hour report, 2026-10-21, 00:00-24:00 WITA

Visual: The volcano is covered by fog 0-I to covered by fog 0-II. Crater smoke not observed.

4 Deep volcanic events, amplitude 1.4-6 mm, S-P 1.3-2.2 s, duration 8.5-10 s.
21 Local tectonic events, amplitude 1-15 mm, S-P 4.3-9.5 s, duration 18-38 s.
13 Distant tectonic events, amplitude 1-25 mm, S-P 10.4-19.2 s, duration 30-59 s.

24-hour report, 2026-10-20, 00:00-24:00 WITA

Visual: The volcano is clearly visible to covered by fog 0-II. Crater smoke not observed.

5 Deep volcanic events, amplitude 1-15 mm, S-P 1.7-29 s, duration 10-17 s.
35 Local tectonic events, amplitude 1-12 mm, S-P 4-10 s, duration 18-46 s.
27 Distant tectonic events, amplitude 1-46 mm, S-P 10.2-16.7 s, duration 32-85 s.

24-hour report, 2026-10-19, 00:00-24:00 WITA

Visual: The volcano is clearly visible to covered by fog 0-I. Crater smoke not observed.

2 Deep volcanic events, amplitude 2.3-10 mm, S-P 2.1-2.4 s, duration 10-11 s.
19 Local tectonic events, amplitude 1-10 mm, S-P 4.6-9.3 s, duration 17-51 s.
2 Terasa, skala II MMI events, amplitude 46 mm, S-P 4-5 s, duration 52-83 s.
27 Distant tectonic events, amplitude 1-11 mm, S-P 10.6-15.7 s, duration 33-58 s.

24-hour report, 2026-10-18, 00:00-24:00 WITA

Visual: The volcano is clearly visible to covered by fog 0-II. No crater smoke.

7 Deep volcanic events, amplitude 1-6 mm, S-P 1.2-2.9 s, duration 9-13 s.
32 Local tectonic events, amplitude 1-11 mm, S-P 5.7-10 s, duration 19-46 s.
2 Terasa, skala II hingga III MMI events, amplitude 46 mm, S-P 5.7-29 s, duration 37-131 s.
20 Distant tectonic events, amplitude 1-24 mm, S-P 10.24-25.8 s, duration 29-64 s.

Level history

No level changes recorded since monitoring began.