Overall Green Volcanic eruption for Merapi
in Indonesia

Event summary

GREEN alert: The Merapi 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 1000086
Name: Merapi (263250)
Lat/Lon: -7.54 , 110.45
Event Date: 23 Jan 2024 UTC
Exposed Population 30km: About 4490000 people within 30km
Exposed Population 100km: About 23640000 people within 100km
Max Volc. Explosivity Index VEI: 4
Population Exposure Index PEI: 7
Inserted at: 23 Jan 2024 07:31 UTC

GDACS Score

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Virtual OSOCC
Meteo assessment
Satellite products
Analytical products
Indonesia - Volcanic activity (ECHO 23 Jan 2024)Tue, 23 Jan 2024 10:35

  • Mount Merapi, located on the border between the Province of Central Java and the Special Region of Yogyakarta, erupted on 21 January at at 7.12 UTC.
  • According to the National Agency for Disaster Countermeasure (BNPB), the ashfall reached several areas in Central Java, such as Boyolali Regency and Klaten Regency.
  • National and local authorities continue to coordinate and carry out data collection and monitoring in areas affected by the eruption of Mount Merapi.
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 Merapi report has been published on 17 Jan 2024 10:08.
BPPTKG reported that the eruption at Merapi (on Java) continued during 5-11 January. The SW lava dome produced a total of 189 lava avalanches that descended the S, SW, and W flanks; eight traveled S as far as 1.5 km down the upper part of the Boyong drainage, 178 traveled SW as far as 1.8 km down the upper part of the Bebeng drainage, and three traveled as far as 1.5 km down the Sat/Putih drainage. Four pyroclastic flows descended the Boyong and Bebeng drainages as far as 1.5 km. Morphological changes to the SW lava dome identified in webcam images were due to continuing collapses of material. The Alert Level remained at 3 (on a scale of 1-4), and the public was warned to stay 3-7 km away from the summit, based on location. Source: Balai Penyelidikan dan Pengembangan Teknologi Kebencanaan Geologi (BPPTKG)
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),