Please refer to the attached file.
Description
Situation Overview: Mt. Krakatau Volcanic Activity
Background and Alert Status
Mt. Krakatau, located in the Sunda Strait, has shown a significant escalation in volcanic activity since early July 2026. Following a prolonged period of dormancy, activity intensified, prompting the Geological Agency to raise the alert status from Level II (Waspada/Caution) to Level III (Siaga/Alert) on July 2, 2026.
Eruption Timeline
Based on monitoring by the Geological Agency, the eruption commenced on Friday (04/09) at 23:07 WIB and continued until Sunday (06/09) at 00:04 WIB. Audible rumbling sounds were reported from the Pasauran volcanic observation post in Banten.
Regional Impacts
- South Lampung Regency: The eruption has resulted in volcanic ashfall across the region. Local authorities have heightened emergency preparedness and temporarily suspended all tourism activities to Sebesi Island and the Mt. Krakatau area. As of the latest update, there are no reports of casualties or structural damage. Residents have been advised to wear masks.
- Pandeglang Regency: Impacted areas have experienced felt tremors and volcanic ashfall. No casualties or damage have been reported to date. The public is urged to wear masks, minimize outdoor activities, and strictly maintain a 3 km exclusion zone from the center of volcanic activity.
- Tanggamus Regency: Significant ashfall has affected several sub-districts, including Pematang Sawa, Kelumbayan, Cukuh Balak, and the Kota Agung area. The ash has impacted residential settlements and daily community activities. Residents are advised to wear masks and limit outdoor mobility.
Aviation and Infrastructure Disruption
The eruption has severely impacted aviation operations due to the dispersion of volcanic ash in the surrounding airspace. This has led to the temporary closure of several key airports, including Soekarno-Hatta International Airport, Halim Perdanakusuma, Radin Inten II, and Budiarto. Mitigation measures, such as flight delays, cancellations, and rerouting, have been implemented to ensure aviation safety.
Current Response
Data collection and continuous monitoring of the impacts of Mt. Krakatau’s eruption are currently ongoing.
Request For Assistance
Government Requests International Assistance: No
NS Requests International Assistance: No
Information Bulletin Published
No
Actions taken by Federation
General
Other
Summary
IFRC CCD is monitoring and coordinating closely with PMI NHQ for further update from the field and for further support if required
Actions taken by RCRC
Summary
RCRC Movement actors maintain active communication with PMI NHQ, following updates from the field and evaluating potential support requirements.
Actions taken by National Society
General
Damage/Needs assessment
First Aid
Relief/Supply distribution
Other
Human remains management and identification
Summary
PMI Response Actions PMI NHQ has mobilized additional logistical assets to augment the local response capacity in Banten and Lampung. The support package consists of 100,000 masks, 100 pairs of protective goggles, and 3 oxygen concentrator units. These items are being prioritized for distribution to areas with the highest concentration of volcanic ashfall to prevent Acute Respiratory Infections (ARI). In response to the situation, the Indonesian Red Cross (PMI) has undertaken the following activities: 1. Assessment: Conducting rapid field assessments to determine the immediate needs of the affected population. 2. Personnel Mobilization: Mobilized 23 personnel (including volunteers and Satgana/Disaster Response Team) to the affected areas. 3. Disaster Preparedness Socialization: Providing safety and disaster preparedness awareness to the community, particularly regarding volcanic hazard mitigation. 4. Health Services: Deployed one (1) ambulance unit for emergency standby and community support. 5. Mask Distribution: Distributed 1,500 masks to residents in Lebak Regency. PMI Cilegon City has provided 15,500 masks to support PMI Lampung’s response efforts. 6. Coordination: Maintaining continuous coordination with local governments, BPBD, and other relevant agencies to ensure an integrated response.
Actions taken by others
The Government of Indonesia through BNPB, BPBD, relevant Ministries, and Local Governments has implemented the following strategic measures: 1. Deployment of Tactical & Rapid Assessment Teams BNPB has deployed advance tactical teams to Banten and Lampung provinces to conduct direct on-site monitoring. These teams are responsible for performing Rapid Needs Assessments (RNA) regarding physical damage and identifying urgent humanitarian requirements in the field. 2. Logistics and Health Mitigation Authorities are distributing essential relief supplies and medical-grade masks to communities in ashfall-affected areas. This measure is a priority to mitigate the risk of Acute Respiratory Infections (ARI/ISPA) among the vulnerable population. 3. Weather Modification Operations (WMO) A Weather Modification Operation (locally known as OMC) has been launched from Pondok Cabe Airport. The mission aims to stimulate artificial rainfall to suppress and clear volcanic ash dispersion from the atmosphere over Banten, Lampung, and DKI Jakarta. 4. Aviation and Maritime Safety Management The Ministry of Transportation, in coordination with InJourney Airports, has enforced the temporary closure of several impacted airports, including Soekarno-Hatta International Airport and Radin Inten II, to ensure flight safety. Additionally, maritime authorities have issued safety advisories for all vessels navigating the Sunda Strait to remain on high alert.