Mount Ili Lewotolok
Nusa Tenggara Timur · 1.423 m a.s.l.
Recommendations
2. Mewaspadai potensi ancaman bahaya guguran/longsoran lava dan awan panas pada sektor selatan dan tenggara, sektor barat, serta sektor timur laut G. Ili Lewotolok.
3. Masyarakat yang berada di sekitar G. Ili Lewotolok diimbau menggunakan masker pelindung mulut dan hidung serta perlengkapan lain untuk melindungi mata dan kulit serta menghindari gangguan pernapasan (ISPA) maupun gangguan kesehatan Iainnya, serta menutup tempat penampungan air bersih agar terhindar dari paparan abu vulkanik.
4. Pemerintah daerah dan masyarakat senantiasa berkoordinasi dengan Pos Pengamatan G. Ili Lewotolok di Desa Laranwutun, Kecamatan Ile Ape atau Pusat Vulkanologi dan Mitigasi Bencana Geologi atau Badan Geologi di Bandung untuk mendapatkan informasi terkait aktivitas G. Ili Lewotolok.
5. Perkembangan aktivitas serta rekomendasi teknis G. Ili Lewotolok dapat juga dipantau melalui aplikasi/website Magma Indonesia (www.vsi.esdm.go.id atau https://magma.esdm.go.id) dan media sosial Badan Geologi, serta website Badan Geologi (www.geologi.esdm.go.id).
Latest report
24-hour report, 2026-10-24, 00:00-24:00 WITA · Amirudin Jaafar MS, A.Md
Visual observation
The volcano is clearly visible to covered by fog 0-III. Main crater smoke observed: white and grey with thin to moderate intensity, rising about 200-300 meter dari puncak. Weather clear to cloudy, weak wind to moderate towards north, west and northwest. Air temperature about 23.0-31.0°C. Air pressure not observed.
Climatology
Weather clear to cloudy, weak wind to moderate towards north, west and northwest. Air temperature about 23.0-31.0°C. Air pressure not observed.
Seismicity
- 1 Tremor Non-Harmonik event, amplitude 3.0 mm, duration 34.0 s.
- 117 Emission events, amplitude 3.0-38.0 mm, duration 11.0-48.0 s.
- 16 Rockfall events, amplitude 3.0-15.0 mm, duration 15.0-59.0 s.
- 1 Harmonik event, amplitude 3.0 mm, duration 77.0 s.
- 8 Deep volcanic events, amplitude 3.0-19.0 mm, S-P 1.06-2.95 s, duration 12.0-29.0 s.
- 41 Explosion/eruption events, amplitude 19.0-47.0 mm, duration 19.0-40.0 s.
- 1 Distant tectonic event, amplitude 19.0 mm, S-P 5.0 s, duration 20.0 s.
- 8 Local tectonic events, amplitude 3.0-19.0 mm, S-P 1.06-2.95 s, duration 12.0-18.0 s.
Observation photo
Latest observation photo.
- Location
- Lembata, Nusa Tenggara Timur
- Nearest city
- Larantuka
- Elevation
- 1.423 m a.s.l.
- Coordinates
- -8.2720000, 123.5050000
Observation-post CCTV
Gunung Ili Lewotolok belum memiliki CCTV publik.
Live seismograms
Seismograph (helicorder) records from the last 24 hours at 5 PVMBG stations on Mount Ili Lewotolok, updated about every 15 minutes. One line = 30 minutes; the bottom line is the latest. Times on the image are UTC (WIB = UTC+7, WITA = UTC+8, WIT = UTC+9). Click an image for full size.
Source: PVMBG – MAGMA Indonesia. Volcanic earthquakes appear as spikes on the trace; continuous shaking may indicate tremor.
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.
14-day seismicity chart
Volcanic earthquakes per day by type.
View data table
| Date | Explosion/eruption | Rockfall | Emission | Shallow volcanic | Deep volcanic | Hybrid/multiphase | Local tectonic | Distant tectonic |
|---|---|---|---|---|---|---|---|---|
| 25 Oct | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 24 Oct | 41 | 16 | 117 | 0 | 8 | 0 | 8 | 1 |
| 23 Oct | 29 | 1 | 61 | 0 | 0 | 0 | 1 | 1 |
| 22 Oct | 95 | 2 | 64 | 3 | 1 | 0 | 0 | 1 |
| 21 Oct | 17 | 1 | 93 | 0 | 0 | 2 | 1 | 1 |
| 20 Oct | 88 | 0 | 108 | 0 | 1 | 0 | 1 | 1 |
| 19 Oct | 129 | 3 | 146 | 0 | 0 | 1 | 0 | 3 |
| 18 Oct | 57 | 16 | 159 | 0 | 7 | 3 | 2 | 2 |
| 17 Oct | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 16 Oct | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 15 Oct | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 14 Oct | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 13 Oct | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 12 Oct | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Satellite imagery
Previous reports
24-hour report, 2026-10-23, 00:00-24:00 WITA
Visual: The volcano is clearly visible to covered by fog 0-III. Main crater smoke observed: white with thin to moderate intensity, rising about 20 meter dari puncak.
- 29 Explosion/eruption events, amplitude 7.7-40 mm, duration 33-54 s.
- 1 Rockfall event, amplitude 9.7 mm, duration 30 s.
- 61 Emission events, amplitude 1.9-19.4 mm, duration 18-44 s.
- 1 Local tectonic event, amplitude 9.7 mm, S-P 3.2 s, duration 20 s.
- 1 Distant tectonic event, amplitude 9.7 mm, S-P 18 s, duration 107 s.
24-hour report, 2026-10-22, 00:00-24:00 WITA
Visual: The volcano is clearly visible to covered by fog 0-II. Main crater smoke observed: white with thin to moderate intensity, rising about 50-100 meter dari puncak.
- 95 Explosion/eruption events, amplitude 19.5-40 mm, duration 24-80 s.
- 2 Rockfall events, amplitude 7.8-15.6 mm, duration 53-68 s.
- 64 Emission events, amplitude 11.7-19.5 mm, duration 20-60 s.
- 6 Tremor Non-Harmonik events, amplitude 11.7-19.5 mm, duration 121-330 s.
- 3 Shallow volcanic events, amplitude 9.7-19.5 mm, duration 9-15 s.
- 1 Deep volcanic event, amplitude 19.5 mm, S-P 0.9 s, duration 12 s.
- 1 Distant tectonic event, amplitude 19.5 mm, S-P not observed, duration 83 s.
24-hour report, 2026-10-21, 00:00-24:00 WITA
Visual: The volcano is clearly visible to covered by fog 0-II. Main crater smoke observed: white with thin to moderate intensity, rising about 50-100 meter dari puncak.
- 17 Explosion/eruption events, amplitude 19.5-40 mm, duration 33-49 s.
- 1 Rockfall event, amplitude 3.9 mm, duration 67 s.
- 93 Emission events, amplitude 3.9-19.5 mm, duration 20-47 s.
- 2 Hybrid/multiphase events, amplitude 9.7-11.7 mm, S-P 1.7-2 s, duration 16-25 s.
- 1 Local tectonic event, amplitude 15.6 mm, S-P 5 s, duration 23 s.
- 1 Distant tectonic event, amplitude 40 mm, S-P not observed, duration 142 s.
24-hour report, 2026-10-20, 00:00-24:00 WITA
Visual: The volcano is clearly visible to covered by fog 0-III. Main crater smoke observed: white with thin to moderate intensity, rising about 100-200 meter dari puncak.
- 88 Explosion/eruption events, amplitude 9-47 mm, duration 20-46 s.
- 108 Emission events, amplitude 3.9-47 mm, duration 20-82 s.
- 1 Deep volcanic event, amplitude 38.9 mm, S-P 1.08 s, duration 14 s.
- 1 Local tectonic event, amplitude 38.9 mm, S-P 7.08 s, duration 21 s.
- 1 Distant tectonic event, amplitude 19.5 mm, S-P 20.19 s, duration 58 s.
24-hour report, 2026-10-19, 00:00-24:00 WITA
Visual: The volcano is clearly visible to covered by fog 0-II. Main crater smoke observed: white with thin to moderate intensity, rising about 50-100 meter dari puncak.
- 129 Explosion/eruption events, amplitude 19.5-40 mm, duration 24-52 s.
- 3 Rockfall events, amplitude 5.8-15.6 mm, duration 45-105 s.
- 146 Emission events, amplitude 2.9-19.5 mm, duration 21-49 s.
- 4 Tremor Non-Harmonik events, amplitude 3.9-11.7 mm, duration 69-202 s.
- 1 Hybrid/multiphase event, amplitude 7.8 mm, S-P 1.5 s, duration 14 s.
- 3 Distant tectonic events, amplitude 15.6-40 mm, S-P 37 s, duration 104-208 s.
24-hour report, 2026-10-18, 00:00-24:00 WITA
Visual: The volcano is covered by fog 0-I to covered by fog 0-III. Crater smoke not observed.
- 57 Explosion/eruption events, amplitude 19.5-40 mm, duration 24-58 s.
- 16 Rockfall events, amplitude 2.9-15.6 mm, duration 22-45 s.
- 159 Emission events, amplitude 5.8-38.9 mm, duration 20-60 s.
- 16 Tremor Non-Harmonik events, amplitude 2.9-9.7 mm, duration 44-149 s.
- 3 Hybrid/multiphase events, amplitude 7.8-9.7 mm, S-P 1.6-3.8 s, duration 8-15 s.
- 7 Deep volcanic events, amplitude 3.9-19.5 mm, S-P 1.2-2.5 s, duration 8-12 s.
- 2 Local tectonic events, amplitude 7.8-19.5 mm, S-P 4-5 s, duration 13-15 s.
- 2 Distant tectonic events, amplitude 9.7-40 mm, S-P 14-40 s, duration 42-246 s.
Level history
No level changes recorded since monitoring began.