Overall Green Volcanic eruption for Krakatau
in Indonesia

Event summary

GREEN alert: The Krakatau Volcanic eruption may have a low humanitarian impact, based on the magnitude of the eruption, the exposed population and its coping capacity..

GDACS ID VO 1000064
Name: Krakatau (262000)
Lat/Lon: -6.1 , 105.42
Event Date: 31 Mar 2023 UTC
Exposed Population 30km: About 7000 people within 30km
Exposed Population 100km: About 7380000 people within 100km
Max Volc. Explosivity Index VEI: 6
Population Exposure Index PEI: 4
Inserted at: 31 Mar 2023 05:40 UTC

GDACS Score

For more info on GDACS alert score click here.
Virtual OSOCC
Meteo assessment
Satellite products
Analytical products
Detailed event map. European Union, 2026. Map produced by EC-JRC.
The boundaries and the names shown on this map do not imply official endorsement or acceptance by the European Union.

Updates on volcanic activity (Smithsonian)

The Smithsonian/USGS Weekly Volcanic Activity Report provides information about global volcanism on a weekly basis. Latest Krakatau report has been published on 29 Mar 2023 08:51.
PVMBG reported that the eruption at Anak Krakatau continued during 22-29 March and multiple ash plumes were visible rising from the vent during 28-29 March. Ash plumes recorded at 0412, 0743, 1221, 1513, and 1935 on 28 March were dense and dark gray and rose as high has 2.5 km above the summit. The ash plumes drifted NE and W. Webcam images captured incandescent material being ejected above the vent at 0415 and around the summit area at 2003. At 0041 on 29 March a dense dark ash plume rose 600 m and drifted W. A webcam image from 0047 showed incandescent material at the vent. The Alert Level remained at 3 (on a scale of 1-4), and the public was warned to stay at least 5 km away from the crater. Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)
See the detail here

Estimated casualties (PAGER)

USGS estimates the number of casualties for each earthquake for the Prompt Assessment of Global Earthquakes for Response (PAGER) product.
The graph shows the current fatalities estimate.

Exposed population

Data, images, links, services and documents

For this events, GDACS has links to information from the following sources: EC-JRC (31), INGV (2), DesInventar (1), WMO (1), INFORM (2), (1), JSR (1),