Anak Krakatau Volcano Erupts in Indonesia: Lava Spews, Booming Sounds Heard as Ash Soars 50,000 Feet (Videos)

Anak Krakatau, the active volcanic island located in Indonesia’s Sunda Strait between Java and Sumatra, erupted in a series of explosive displays, sending lava fountains, ash columns, and audible shockwaves across nearby provinces. The eruption pushed volcanic ash clouds up to 50,000 feet (15,200 meters) into the sky. The widespread ash accumulation forced transport authorities to temporarily suspend operations at Jakarta’s Soekarno-Hatta International Airport, stranding over 22,000 passengers and disrupting more than 300 flights across regional and international routes.

Explosive Lava Display, Booming Shockwaves Recorded

Videos captured by geological monitoring stations and nearby residents show red-hot lava spewing from the active crater, accompanied by glowing plume reflections against the night sky. Field surveillance equipment near the crater was disabled after being struck by ejected volcanic debris.

Indonesia's Geological Agency confirmed that continuous rumbling and loud booming sounds were reported throughout parts of West Java, Banten, and Lampung provinces. The atmospheric shockwaves were reportedly heard up to 700 kilometers away. Singapore Airlines Cancels Multiple Jakarta Flights as Mount Anak Krakatau Volcano Erupts; Check Details.

Flight Groundings and Regional Travel Impact

The Directorate General of Civil Aviation implemented temporary groundings and safety delays after volcanic particulate matter was detected over major transit corridors. Fine volcanic ash poses severe operational risks to jet engines and reduced cockpit visibility.

• Airport Closures: Soekarno-Hatta International Airport in Jakarta suspended flight movements during early morning operations, alongside short-term delays across five regional airfields.

• Airlines Affected: Flag carriers and budget operators-including Garuda Indonesia, AirAsia, and Singapore Airlines-were forced to cancel or reschedule dozens of flights connecting Jakarta to international hubs such as Singapore, Sydney, Doha, and Hong Kong.

• Passenger Guidance: Aviation officials urged all travelers traveling through western Indonesia to verify flight statuses online before heading to departure terminals.

Authorities Issue 3-Kilometer Exclusion Zone

Indonesia’s Center for Volcanology and Geological Hazard Mitigation (PVMBG) maintains a Level III (Siaga/Alert) status for the volcano. Mount Kīlauea Erupts: Active Volcano Erupts for 44th Time, Lava Fountains Trigger Closures in Hawaii (Watch Videos).

Lava Spews as Mount Anak Krakatau Erupts

Insane footage shows Anak Krakatau erupting, filmed from a boat near the volcano pic.twitter.com/5IAf63WlE8

— Surajit (@surajit_ghosh2) September 5, 2026

Mount Anak Krakatau continues to erupt as seismic activity remains elevated

Authorities have kept the volcano at Alert Level III as it stays highly active pic.twitter.com/mOyOakGAYo

— Surajit (@surajit_ghosh2) September 6, 2026

🚨 Indonesia's Mt. Anak Krakatau erupted Friday September 4 overnight into Saturday, spewing rocks and volcanic ash into the air.

Another eruption occurred in the following hours, with the height of the column of black smoke observed at over 1,000 meters. pic.twitter.com/hmDClI85Ne

— Massimo (@Rainmaker1973) September 5, 2026

While no formal community evacuations have been ordered—the nearest permanent residential settlement sits over 16 kilometers away—authorities strongly urge residents, fishermen, and tourists to maintain a minimum 3-kilometer (1.9-mile) exclusion zone around the active crater. National Disaster Mitigation Agency (BNPB) officials warned the public against approaching the area to film videos or take photographs due to the risk of falling incandescent rocks.

Residents downwind in Banten and Lampung provinces have been advised to wear protective masks and eye goggles to avoid health issues caused by heavy ashfall.

Volcanic History and Tsunami Risk Assessment

Anak Krakatau, which translates to "Child of Krakatoa," emerged in the 1920s from the submerged caldera created by the legendary 1883 eruption of Krakatoa. The 1883 event triggered massive tsunamis and dropped global temperatures.

Public concern remains elevated due to a December 2018 event, when a partial collapse of Anak Krakatau’s flank triggered an undetected tsunami that killed more than 430 people along the coasts of Java and Sumatra.

Geological experts clarified that the current eruption poses no immediate tsunami risk. The volcano’s current structure is significantly reduced in size compared to 2018, and recent seismic activity does not indicate a flank collapse capable of displacing large volumes of seawater. Monitoring teams continue to observe satellite imagery and seismic data around the clock.

(The above story first appeared on LatestLY on Sep 06, 2026 02:29 PM IST. For more news and updates on politics, world, sports, entertainment and lifestyle, log on to our website latestly.com).