Indonesia Volcano Tracker – Live Eruptions & Alerts
By Paul Harrison | Founder & Publisher, Orbis Weather
Indonesia Volcanoes and Live Eruptions This Week: Saturday, October 24, 2026
· @Paul
By Paul Harrison, Orbis Weather
Six Indonesian volcanoes showed eruptive activity between Saturday, October 17 and Saturday morning, October 24, 2026. Semeru in East Java, Merapi in Central Java and Anak Krakatau in the Sunda Strait stayed at Level III (Siaga), the second-highest alert level. Ibu in North Maluku, Ili Lewotolok in East Nusa Tenggara and Karangetang in North Sulawesi erupted at Level II (Waspada). This report is current to 06:00 WIB on Saturday, October 24 (19:00 EDT on Friday, October 23).
The most notable event came on Friday morning, when Semeru erupted six times in under three and a half hours. Sinabung in North Sumatra was lowered from Level III to Level II on October 17. No deaths, injuries, evacuations or flight disruptions were reported in published accounts during the week.
Key facts
Measure | This week |
|---|---|
Volcanoes with eruptive activity | 6 |
Highest alert level in force | Level III (Siaga): Semeru, Merapi, Anak Krakatau |
Most notable eruption | Semeru, six eruptions on the morning of October 23 |
Deaths, injuries or evacuations | None reported |
Flight disruption | None reported |
Alert levels at a glance
Volcano | Region | Alert level | Keep-out zone | This week’s activity |
|---|---|---|---|---|
Semeru | East Java | III (Siaga) | 5 km from crater; 13 km in southeast sector along Besuk Kobokan | Repeated ash eruptions, six on October 23 |
Merapi | Central Java / Yogyakarta | III (Siaga) | Up to 7 km by sector; 3 km radius | Lava avalanches toward southwest valleys |
Anak Krakatau | Sunda Strait | III (Siaga) | 5 km; 1 km from new islets to northwest and southeast | Frequent explosive eruptions |
Ibu | Halmahera, North Maluku | II (Waspada) | 2 km; 3.5 km toward north crater opening | Daily ash eruptions |
Ili Lewotolok | Lembata, East Nusa Tenggara | II (Waspada) | 2 km; 3 km on south and southeast flanks | Ash plumes and lava flows on southeast flank |
Karangetang | Siau, North Sulawesi | II (Waspada) | 1.5 km from both craters; 2.5 km on northwest and southwest flanks of North Crater | Ash plume on October 21 |
Sinabung (North Sumatra) was lowered from Level III to Level II at 09:00 WIB on October 17, with a 3 km radius and 4 km to the south-southeast. Marapi (West Sumatra) and Lewotobi Laki-laki (Flores) remain at Level II; Marapi’s last recorded eruptive event was at 22:27 WIB on October 16, and Lewotobi Laki-laki has not erupted since August 31.
Volcanoes erupting this week
Semeru, East Java (Level III)
Semeru’s strongest burst of the week came on Friday, October 23, when observers recorded six eruptions between 04:54 and 08:20 WIB. The tallest ash column, at 05:53 WIB, rose 1,200 m above the summit, and the 08:20 WIB eruption sent thick ash about 1 km high, or 4,676 m above sea level, toward the southwest, according to observation post officer Liswanto. Earlier in the week, ash rose 600 m above the summit (4,276 m above sea level) at 20:00 WIB on October 17 and again at 18:07 WIB on October 22, and 500 m at 05:49 WIB on October 18. Plumes on October 19 and 20 were not visible.
Between 12:00 and 18:00 WIB on October 17, seismographs logged 25 eruption earthquakes with amplitudes of 10 to 22 mm. By October 22, Databoks’s running tally of PVMBG reports put Semeru at 2,022 eruptions so far in 2026. Besides the keep-out zones in the table above, people must stay 500 m from the banks of the Besuk Kobokan river, because pyroclastic flows and lahars can travel up to 17 km from the summit. The climbing route is closed.
Anak Krakatau, Sunda Strait (Level III)
Anak Krakatau erupted repeatedly all week, two weeks after the Geological Agency raised it to Level III at 21:00 WIB on October 9. Eruptions were reported at 01:35 WIB on October 17 and at 06:40 and 12:28 WIB on October 20. The Smithsonian Institution’s Global Volcanism Program (GVP), citing PVMBG, reported ash plumes 100 to 600 m above the vent from October 18 to 20, and a dense black plume about 500 m high at 11:45 WIB on October 21, drifting northwest.
Between 06:00 and 12:00 WIB on October 20 alone, PVMBG recorded 13 eruption earthquakes (amplitudes 46.5 to 67 mm) and 10 blast earthquakes. Anak Krakatau’s 2026 tally reached 164 eruptions on October 20.
Merapi, Central Java and Yogyakarta (Level III)
Merapi continued its slow, effusive eruption, in which lava builds domes and breaks off as glowing avalanches rather than exploding. The Center for Volcanological and Geological Hazard Technology Research and Development (BPPTKG) observed six lava avalanches toward the Sat/Putih and Krasak rivers on October 20, reaching up to 2,000 m. In the 24 hours to that report it recorded 65 rockfall earthquakes, 64 hybrid (multiphase) earthquakes and 5 shallow volcanic earthquakes.
On October 22, BPPTKG reported: “Two lava avalanches were observed to the southwest, toward Kali Krasak and Kali Sat/Putih, with a maximum runout of 1,500 metres.” The GVP summary for October 15 to 21 noted avalanches up to 2.5 km along the Sat/Putih and Boyong drainages. The hazard zone reaches 5 km along the Boyong, 7 km along the Bedog, Krasak and Bebeng, 3 km along the Woro and 5 km along the Gendol.
Ibu, North Maluku (Level II)
Ibu erupted every day, and GVP reported daily ash plumes 200 to 600 m above the summit. At 00:18 WIT on October 19, thick grey ash rose 400 m (1,725 m above sea level) toward the northeast. At 03:52 WIT on October 20 it rose about 300 m (1,625 m), and at 00:08 WIT on October 21 it reached 600 m (1,925 m), drifting east.
Seismographs logged 112 eruption earthquakes on October 22, the busiest day reported. Ibu’s 2026 tally reached 1,786 eruptions that day.
Ash and aviation
The tallest reported ash column of the week was Semeru’s on Friday morning. Among the volcanoes kept to the table, Karangetang sent a white-and-grey ash plume about 800 m above its summit at 20:47 WITA on October 21, drifting north and northeast, and Ili Lewotolok produced ash plumes 200 to 400 m high that drifted west and northwest on October 19 to 21. News reports this week did not cite VONA (Volcano Observatory Notice for Aviation) colour codes or Darwin Volcanic Ash Advisory Centre (VAAC) advisories, and no airport closures or flight cancellations were reported.
What to watch in the coming week
- Semeru: whether Friday’s cluster of eruptions marks a step up, and lahar risk along the Besuk Kobokan if heavy rain falls.
- Anak Krakatau: whether frequent explosions continue under Level III, now in force for two weeks.
- Merapi: the runout of lava avalanches and any pyroclastic flows into the southwest valleys, and BPPTKG’s weekly summary, which covers Friday to Thursday.
- Sinabung: whether activity stays low after the October 17 downgrade.
- Lewotobi Laki-laki: whether the decline in volcanic earthquakes reported for October 1 to 15 continues.
How Indonesia’s volcano alert system works
Level | Name | Meaning |
|---|---|---|
I | Normal | Background activity; no eruption expected |
II | Waspada (Advisory) | Activity above background; small eruptions possible near the crater |
III | Siaga (Watch) | Clear increase in activity; a larger eruption may occur; wider keep-out zones |
IV | Awas (Warning) | Major eruption under way or imminent; evacuation of danger zones |
Levels are set by the Geological Agency (Badan Geologi) of the Ministry of Energy and Mineral Resources through its Center for Volcanology and Geological Hazard Mitigation (PVMBG); BPPTKG monitors Merapi.
About this article
This is a summary of published reports from PVMBG, BPPTKG, the Smithsonian Global Volcanism Program and Indonesian news outlets, not an official warning; follow instructions from local authorities. Times are given in each volcano’s local zone: WIB (UTC+7) for Java and the Sunda Strait, WITA (UTC+8) for Sulawesi and East Nusa Tenggara, and WIT (UTC+9) for Maluku. Eruption counts differ between sources because some count every seismic eruption signal and others only visible ash columns, and weekly windows do not always match. Ash heights are observers’ estimates and are often unavailable at night or in cloud.
Term | Meaning |
|---|---|
Pyroclastic flow (awan panas) | A fast, ground-hugging cloud of hot gas, ash and rock |
Lava avalanche (guguran lava) | Glowing lava breaking off a dome and rolling downslope |
Lahar | A mudflow of volcanic debris and water, often triggered by rain |
Lava dome | A mound of thick lava piling up over a vent |
Amplitude | The size of a seismic signal on a seismograph, in millimetres |
Frequently asked questions
Which Indonesian volcano is most dangerous right now? Three volcanoes are at Level III (Siaga): Semeru, Merapi and Anak Krakatau. None was reported at Level IV (Awas) this week. Level III means a larger eruption is possible and keep-out zones are wider.
Is it safe to travel to Bali, Java or Lombok? No airport closures or flight cancellations linked to eruptions were reported this week. Travellers should check with their airline, because ash clouds can change quickly with the wind.
Can tourists climb Semeru or visit Anak Krakatau? No. The Semeru climbing route is closed, and visitors may not enter the 5 km zone around Anak Krakatau. Both are at Level III.
Why was Sinabung’s alert level lowered? The Geological Agency lowered Sinabung from Level III to Level II on October 17 after reviewing activity up to October 15. People are still barred from the summit area and from relocated villages.
Is Merapi erupting? Yes, in an effusive way. Lava is building up in domes and breaking off as avalanches, with no large explosions reported this week.
🚦 Indonesia's Official Volcano Alert Levels
🌋 Volcanoes to Watch
⚠️ Main Volcanic Hazards
🔗 Official Live Volcano Status
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Indonesia Volcano Tracker: Current Activity, Eruptions & Volcanic Hazards
Indonesia is one of the most volcanically active countries on Earth. From the densely populated islands of Java and Sumatra to the volcanic chains of Bali, Flores, Sulawesi and the Maluku Islands, eruptions are a regular part of life across the Indonesian archipelago.
The Indonesia Volcano Tracker from Orbis Weather is designed to help readers follow volcanic activity across the country in one place. Use the live tracker above to identify volcano locations and monitor areas where volcanic unrest or eruptions may be occurring.
Volcanic conditions can change quickly. An apparently quiet volcano can experience increased earthquakes, gas emissions or other signs of unrest, while an active eruption can produce ash clouds capable of traveling hundreds of miles from the volcano.
For official warnings, evacuation orders and exclusion zones, always follow Indonesian authorities and local emergency officials.
🌋 Why Does Indonesia Have So Many Volcanoes?
Indonesia sits within one of the world’s great zones of tectonic and volcanic activity.
The country lies along several interacting tectonic plate boundaries where, in many areas, one plate is forced beneath another through a process called subduction. This can generate magma that eventually rises toward the surface and feeds volcanoes.
Indonesia is therefore commonly associated with the Pacific Ring of Fire, the broad collection of highly active volcanic and earthquake regions around much of the Pacific. The Smithsonian Institution’s Global Volcanism Program lists 101 Holocene volcanoes in Indonesia, meaning volcanoes with evidence of activity during roughly the past 12,000 years. (CF11)
This geology also helps explain why Indonesia experiences frequent earthquakes as well as volcanic eruptions.
🔥 Some of Indonesia’s Most Closely Watched Volcanoes
Indonesia has numerous volcanoes with histories of significant or persistent activity. Among the names frequently encountered in Indonesian volcano reports are Mount Merapi, Semeru, Ibu, Dukono, Lewotobi Laki-laki, Anak Krakatau and Agung.
Each volcano behaves differently.
Some can experience frequent smaller explosions and ash emissions, while others may remain relatively quiet for long periods before entering a period of renewed unrest. Past behavior does not guarantee what a volcano will do next, which is why monitoring earthquakes, deformation, gas emissions and other volcanic signals is so important.
The tracker above should therefore be viewed as a way to understand where volcanic activity is occurring, rather than as a prediction of exactly when the next major eruption will happen.
⚠️ Understanding Indonesia Volcano Alerts
Indonesia’s volcano monitoring authorities use alert levels to communicate changes in volcanic activity and the potential danger surrounding a volcano.
A higher alert level can result in expanded exclusion zones and recommendations for residents, tourists and climbers to stay farther from the crater or other hazardous areas.
An alert level does not mean that every location surrounding a volcano faces the same risk. Topography, wind direction, eruption type, rainfall and distance from the volcano can dramatically affect which communities are threatened.
Always check the latest instructions from Indonesian authorities before approaching an active volcano.
☁️ Volcanic Ash and Air Quality
Volcanic ash is very different from the soft ash produced by a wood fire. It consists largely of tiny fragments of rock, minerals and volcanic glass.
Heavy ashfall can reduce visibility, contaminate water supplies, damage machinery and create dangerous driving conditions. Fine particles can also aggravate respiratory problems, particularly among vulnerable people. (U.S. Geological Survey)
Wind direction is extremely important during an eruption. Communities far from the crater can sometimes experience ashfall while locations much closer to the volcano remain relatively unaffected.
This is why an eruption’s impacts can extend well beyond the immediate exclusion zone.
✈️ Why Indonesian Volcanoes Matter to Aviation
Indonesia’s location makes volcanic ash particularly important for aviation.
Aircraft flying through volcanic ash can suffer abrasion to windscreens and other surfaces, contamination of instruments and potentially serious engine problems. The U.S. Geological Survey notes that ash particles entering jet engines can melt and accumulate inside the engine, degrading performance and potentially causing a loss of thrust. (USGS)
Consequently, significant eruptions in Indonesia can result in flight diversions, delays or airport closures even when the airport itself is some distance from the erupting volcano.
Travelers should check official airline and airport information whenever a major Indonesian eruption is producing an ash plume.
🌊 Pyroclastic Flows, Lahars and Volcanic Tsunamis
Ash isn’t the only danger associated with Indonesian volcanoes.
Pyroclastic flows are extremely hot, rapidly moving mixtures of volcanic material and gas that can travel down the sides of a volcano. They are among the most dangerous hazards associated with explosive eruptions.
Lahars are another major concern. These destructive flows can occur when water mixes with loose volcanic ash and debris. Heavy tropical rainfall means lahar hazards can sometimes persist after the main eruption has ended.
Indonesia’s island geography also creates another unusual threat: volcanic tsunamis. Under certain circumstances, the collapse of part of a volcanic island, landslides or volcanic activity entering the sea can displace water and generate dangerous waves.
The 2018 collapse of part of Anak Krakatau demonstrated the devastating potential of this type of event.
🧭 What Should You Do During an Indonesian Volcanic Eruption?
If you’re near an erupting volcano, official evacuation instructions should take priority over information from websites, social media or unofficial maps.
Never enter an established exclusion zone simply because the volcano appears quiet.
During ashfall, stay indoors when authorities recommend doing so, protect drinking water and avoid unnecessary driving where visibility is poor or ash is accumulating. Travelers should monitor airline notices because volcanic ash can alter flight operations with little warning.
People living near river valleys draining an active volcano should also remain aware of lahar warnings, especially during periods of heavy rain.
📡 How Scientists Monitor Indonesia’s Volcanoes
Scientists don’t rely on a single measurement to determine whether a volcano is becoming more active.
Monitoring can include earthquake activity beneath the volcano, ground deformation, volcanic gas emissions, thermal observations, satellite imagery and visual observations of the crater.
Changes in several of these signals can provide evidence that magma or volcanic gases are moving underground. However, volcano forecasting is complex. Increased unrest does not always lead to a major eruption, and the timing and size of an eruption cannot always be predicted precisely.
That’s why continuous monitoring is so important in a country with as many potentially active volcanic systems as Indonesia.
❓ Indonesia Volcano Tracker FAQ
How many volcanoes does Indonesia have?
The Smithsonian Global Volcanism Program currently lists 101 Holocene volcanoes associated with Indonesia. Different organizations may publish different totals because the definition of an “active volcano” can vary. (CF11)
Why are there so many volcanoes in Indonesia?
Indonesia lies across highly active tectonic regions where interacting plates and subduction create conditions favorable for magma formation and volcanic activity.
Can Indonesian volcanoes disrupt flights?
Yes. Volcanic ash can travel far downwind and represents a serious aviation hazard, potentially causing airlines to reroute or cancel flights. (USGS)
Can an Indonesian volcano cause a tsunami?
Yes, under certain circumstances. Volcanic flank collapses, landslides and other displacement of seawater can generate tsunamis.
Does volcanic unrest mean an eruption is definitely coming?
No. Increased earthquakes, gas emissions or deformation can indicate changing conditions beneath a volcano, but they do not guarantee that a major eruption will occur.
🌏 Follow Southeast Asia’s Natural Hazards
Indonesia’s volcanoes are part of a much larger network of natural hazards affecting Southeast Asia. Earthquakes, tropical storms, monsoon flooding, volcanic eruptions, lightning and transboundary haze can all affect the region.
Continue exploring Orbis Weather’s Asia-Pacific trackers for Southeast Asia earthquakes, Singapore weather and natural hazards, haze and air quality, thunderstorms, monsoon flooding and other developing hazards across the region.
Data & Safety Note: Orbis Weather provides weather and natural-hazard information for educational and situational-awareness purposes. It should not replace official emergency warnings. During volcanic emergencies, follow instructions issued by Indonesian authorities, local disaster-management agencies and aviation authorities.
Indonesia Volcano Tracker: Current Activity, Eruptions & Volcanic Hazards
Indonesia is one of the most volcanically active countries on Earth. From the densely populated islands of Java and Sumatra to the volcanic chains of Bali, Flores, Sulawesi and the Maluku Islands, eruptions are a regular part of life across the Indonesian archipelago.
The Indonesia Volcano Tracker from Orbis Weather is designed to help readers follow volcanic activity across the country in one place. Use the live tracker above to identify volcano locations and monitor areas where volcanic unrest or eruptions may be occurring.
Volcanic conditions can change quickly. An apparently quiet volcano can experience increased earthquakes, gas emissions or other signs of unrest, while an active eruption can produce ash clouds capable of traveling hundreds of miles from the volcano.
For official warnings, evacuation orders and exclusion zones, always follow Indonesian authorities and local emergency officials.
🌋 Why Does Indonesia Have So Many Volcanoes?
Indonesia sits within one of the world’s great zones of tectonic and volcanic activity.
The country lies along several interacting tectonic plate boundaries where, in many areas, one plate is forced beneath another through a process called subduction. This can generate magma that eventually rises toward the surface and feeds volcanoes.
Indonesia is therefore commonly associated with the Pacific Ring of Fire, the broad collection of highly active volcanic and earthquake regions around much of the Pacific. The Smithsonian Institution’s Global Volcanism Program lists 101 Holocene volcanoes in Indonesia, meaning volcanoes with evidence of activity during roughly the past 12,000 years. (CF11)
This geology also helps explain why Indonesia experiences frequent earthquakes as well as volcanic eruptions.
🔥 Some of Indonesia’s Most Closely Watched Volcanoes
Indonesia has numerous volcanoes with histories of significant or persistent activity. Among the names frequently encountered in Indonesian volcano reports are Mount Merapi, Semeru, Ibu, Dukono, Lewotobi Laki-laki, Anak Krakatau and Agung.
Each volcano behaves differently.
Some can experience frequent smaller explosions and ash emissions, while others may remain relatively quiet for long periods before entering a period of renewed unrest. Past behavior does not guarantee what a volcano will do next, which is why monitoring earthquakes, deformation, gas emissions and other volcanic signals is so important.
The tracker above should therefore be viewed as a way to understand where volcanic activity is occurring, rather than as a prediction of exactly when the next major eruption will happen.
⚠️ Understanding Indonesia Volcano Alerts
Indonesia’s volcano monitoring authorities use alert levels to communicate changes in volcanic activity and the potential danger surrounding a volcano.
A higher alert level can result in expanded exclusion zones and recommendations for residents, tourists and climbers to stay farther from the crater or other hazardous areas.
An alert level does not mean that every location surrounding a volcano faces the same risk. Topography, wind direction, eruption type, rainfall and distance from the volcano can dramatically affect which communities are threatened.
Always check the latest instructions from Indonesian authorities before approaching an active volcano.
☁️ Volcanic Ash and Air Quality
Volcanic ash is very different from the soft ash produced by a wood fire. It consists largely of tiny fragments of rock, minerals and volcanic glass.
Heavy ashfall can reduce visibility, contaminate water supplies, damage machinery and create dangerous driving conditions. Fine particles can also aggravate respiratory problems, particularly among vulnerable people. (U.S. Geological Survey)
Wind direction is extremely important during an eruption. Communities far from the crater can sometimes experience ashfall while locations much closer to the volcano remain relatively unaffected.
This is why an eruption’s impacts can extend well beyond the immediate exclusion zone.
✈️ Why Indonesian Volcanoes Matter to Aviation
Indonesia’s location makes volcanic ash particularly important for aviation.
Aircraft flying through volcanic ash can suffer abrasion to windscreens and other surfaces, contamination of instruments and potentially serious engine problems. The U.S. Geological Survey notes that ash particles entering jet engines can melt and accumulate inside the engine, degrading performance and potentially causing a loss of thrust. (USGS)
Consequently, significant eruptions in Indonesia can result in flight diversions, delays or airport closures even when the airport itself is some distance from the erupting volcano.
Travelers should check official airline and airport information whenever a major Indonesian eruption is producing an ash plume.
🌊 Pyroclastic Flows, Lahars and Volcanic Tsunamis
Ash isn’t the only danger associated with Indonesian volcanoes.
Pyroclastic flows are extremely hot, rapidly moving mixtures of volcanic material and gas that can travel down the sides of a volcano. They are among the most dangerous hazards associated with explosive eruptions.
Lahars are another major concern. These destructive flows can occur when water mixes with loose volcanic ash and debris. Heavy tropical rainfall means lahar hazards can sometimes persist after the main eruption has ended.
Indonesia’s island geography also creates another unusual threat: volcanic tsunamis. Under certain circumstances, the collapse of part of a volcanic island, landslides or volcanic activity entering the sea can displace water and generate dangerous waves.
The 2018 collapse of part of Anak Krakatau demonstrated the devastating potential of this type of event.
🧭 What Should You Do During an Indonesian Volcanic Eruption?
If you’re near an erupting volcano, official evacuation instructions should take priority over information from websites, social media or unofficial maps.
Never enter an established exclusion zone simply because the volcano appears quiet.
During ashfall, stay indoors when authorities recommend doing so, protect drinking water and avoid unnecessary driving where visibility is poor or ash is accumulating. Travelers should monitor airline notices because volcanic ash can alter flight operations with little warning.
People living near river valleys draining an active volcano should also remain aware of lahar warnings, especially during periods of heavy rain.
📡 How Scientists Monitor Indonesia’s Volcanoes
Scientists don’t rely on a single measurement to determine whether a volcano is becoming more active.
Monitoring can include earthquake activity beneath the volcano, ground deformation, volcanic gas emissions, thermal observations, satellite imagery and visual observations of the crater.
Changes in several of these signals can provide evidence that magma or volcanic gases are moving underground. However, volcano forecasting is complex. Increased unrest does not always lead to a major eruption, and the timing and size of an eruption cannot always be predicted precisely.
That’s why continuous monitoring is so important in a country with as many potentially active volcanic systems as Indonesia.
❓ Indonesia Volcano Tracker FAQ
How many volcanoes does Indonesia have?
The Smithsonian Global Volcanism Program currently lists 101 Holocene volcanoes associated with Indonesia. Different organizations may publish different totals because the definition of an “active volcano” can vary. (CF11)
Why are there so many volcanoes in Indonesia?
Indonesia lies across highly active tectonic regions where interacting plates and subduction create conditions favorable for magma formation and volcanic activity.
Can Indonesian volcanoes disrupt flights?
Yes. Volcanic ash can travel far downwind and represents a serious aviation hazard, potentially causing airlines to reroute or cancel flights. (USGS)
Can an Indonesian volcano cause a tsunami?
Yes, under certain circumstances. Volcanic flank collapses, landslides and other displacement of seawater can generate tsunamis.
Does volcanic unrest mean an eruption is definitely coming?
No. Increased earthquakes, gas emissions or deformation can indicate changing conditions beneath a volcano, but they do not guarantee that a major eruption will occur.
🌏 Follow Southeast Asia’s Natural Hazards
Indonesia’s volcanoes are part of a much larger network of natural hazards affecting Southeast Asia. Earthquakes, tropical storms, monsoon flooding, volcanic eruptions, lightning and transboundary haze can all affect the region.
Continue exploring Orbis Weather’s Asia-Pacific trackers for Southeast Asia earthquakes, Singapore weather and natural hazards, haze and air quality, thunderstorms, monsoon flooding and other developing hazards across the region.
Data & Safety Note: Orbis Weather provides weather and natural-hazard information for educational and situational-awareness purposes. It should not replace official emergency warnings. During volcanic emergencies, follow instructions issued by Indonesian authorities, local disaster-management agencies and aviation authorities.