Mount Anak Krakatau Erupts Again: Safety Alerts Issued

Mount Anak Krakatau in Lampung, Indonesia, erupted again on October 8, 2026, at 18:28 WIB, as reported by the Geological Agency of the Ministry of Energy and Mineral Resources (ESDM). This recent eruption follows two others that occurred on October 5, 2026, marking a period of heightened volcanic activity.

According to the Geological Agency, the eruption was recorded on seismographs with a maximum amplitude of 46 mm and lasted approximately 4 minutes and 45 seconds. However, the height of the eruption column was not observed. The agency has raised the alert status to Level II (Waspada, or Alert), recommending that the public, including visitors and climbers, maintain a distance of at least 2 kilometers from the active crater.

“The eruption was recorded on seismographs with a maximum amplitude of 46 mm.”Geological Agency, Ministry of Energy and Mineral Resources

Prior to this, Anak Krakatau had been under close observation due to increasing activity. The recent eruptions are part of a series of volcanic activities that have raised concerns among local communities and authorities.

On October 5, the volcano erupted twice in quick succession, producing volcanic ash that was observed moving toward the northwest. Reports indicated that the ash reached altitudes of approximately 2.7 kilometers above sea level, affecting air quality and prompting warnings for nearby residents and air traffic. The Indonesian Meteorology, Climatology, and Geophysics Agency (BMKG) noted that the direction and extent of the ash spread could change based on atmospheric conditions.

“The public has been urged to stay informed about the situation and maintain a safe distance from the volcano.”BMKG

In light of these developments, the public has been urged to stay informed about the situation. The potential hazards from the eruptions include falling volcanic rocks and heavy ash rain, which could pose risks to both life and property. Ongoing monitoring of Anak Krakatau's activity is crucial.

As of October 9, 2026, the Geological Agency officially raised the activity level of Mount Anak Krakatau from Level II (Waspada) to Level III (Siaga, or Standby), reflecting a significant increase in volcanic activity. This decision was documented in an official letter signed by the head of the Geological Agency, indicating that the volcano had experienced 14 eruptions between October 6 and 9 alone, with the most recent eruption recorded at a maximum amplitude of 55 mm and lasting 32 seconds.

According to CNBC Indonesia, on October 9, the volcano erupted twice, with the first eruption at 16:17 WIB producing an ash column observed at approximately 250 meters above the summit, or about 407 meters above sea level. The second eruption at 18:28 WIB did not have an observable ash column but recorded a maximum amplitude of 66 mm. This detailed reporting highlights the ongoing volatility of the volcano and the importance of real-time monitoring.

Indonesian coverage stressed the importance of public safety, with authorities prohibiting access within a 5-kilometer radius of the volcano and advising residents in coastal areas to remain calm and avoid believing rumors about potential tsunamis. While local outlets acknowledged the risks, they also emphasized the need for community resilience and adherence to safety protocols without inciting panic. In contrast, some international coverage has focused more on the geological aspects and the scientific monitoring of the eruptions, potentially downplaying the immediate human concerns.

Historically, Mount Anak Krakatau has been known for its eruptions, including a significant event in 2018 that triggered a tsunami. Fortunately, current assessments indicate that the volcano's structure is not at risk of collapsing in a manner that could generate another tsunami. Nonetheless, local authorities continue to advise caution and adherence to safety protocols.