Overall Green alert Volcanic eruption for Merapi
in Indonesia

Event summary

GREEN alert: The Merapi Volcanic eruption is unlikely to require external humanitarian assistance based on the exposed population and coping capacity.

GDACS ID VO 1000004
Name: Merapi
Lat/Lon: -7.54 , 110.446
Event Date: 28 Jan 2021 UTC
Exposed Population 30km: About 4440000 people within 30km
Exposed Population 100km: About 24400000 people within 100km
Max Volc. Explosivity Index VEI: 4
Population Exposure Index PEI: 7
Inserted at: 28 Jan 2021 08:09 UTC

GDACS Score

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Virtual OSOCC
Meteo assessment
Satellite products
Analytical products
Indonesia - Mount Merapi volcanic eruption (ECHO 12 Nov 2020)Thu, 12 Nov 2020 11:06

  • Mount Merapi, located between Central Java Province and the Special Region of Yogyakarta has increased the volcanic activity with explosive eruptions and associated flank collapse.
  • According to the Indonesian National Board for Disaster Management (BNPB), 1,294 people have been evacuated from the Regencies of Magelang (835), Sleman (203), Boyolali (133) and Klaten (123).
  • The Center for Investigation and Development of Geological Disaster Technology (BPPTKG), increased the alert status of the volcano to the third level.
Indonesia - Mount Merapi volcanic eruption (ECHO 07 Jan 2021)Thu, 07 Jan 2021 10:55

  • Mount Merapi, located between Central Java Province and the Special Region of Yogyakarta has increased the volcanic activity with lava and pyroclastic flows. 
  • Media report, as of 7 January, 500 evacuated people across Magelang Regency (Central Java).
  • According to the Indonesian National Board for Disaster Management (BNPB), the alert status of the volcano stands at the third level.
Indonesia - Mount Merapi volcanic eruption update (ECHO 08 Jan 2021)Fri, 08 Jan 2021 10:47

  • Mount Merapi continues his activity characterized by lava and pyroclastic flow.
  • The Indonesian National Board for Disaster Management (BNPB) reports 1,342 evacuated people in 9 evacuation points across 4 Regencies (Sleman, Magelang, Boyolali and Klaten) located in the Yogyakarta Special Administrative Region and Central Java Province.
  • National and local authorities are constantly monitoring the volcanic activity.  
Indonesia – Volcanic eruption (ECHO 28 Jan 2021)Thu, 28 Jan 2021 10:16

  • Mount Merapi, located between Central Java Province and the Special Region of Yogyakarta erupted pyroclastic and lava flows on 27 January.
  • According to the Indonesian National Board for Disaster Management there are no reports of casualties or damage. The authorities appealed to the people not to carry out any activities in the danger zone of five km from the crater. 
  • Over the next 24 hours, very heavy rainfall is forecast over the whole Java Island, including the area of Mount Merapi.
Detailed event map. European Union, 2024. 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 27 Jan 2021 07:39.
BPPTKG reported that the ?2021 lava dome? continued to grow just below Merapi?s SW rim during 15-21 January, producing a total of 282 incandescent lava avalanches that traveled as far as 1 km down the Krasak and Boyong river drainages on the SW flank. Pyroclastic flows were recorded 19 times and descended the SW flanks as far as 1.8 km. A comparison of photos taken on 14 and 21 January showed that the morphological changes in the summit area were attributed to the emergence of new lava domes. The 2021 dome volume was an estimated 104,000 cubic meters on 21 January, with a growth rate of about 8,600 cubic meters per day. Deformation continued, though at a lower rate; Electronic Distance Measurement (EDM) data showed a distance shortening between points in the NW at a rate of 0.8 cm per day. Seismic activity was lower than the previous week. According to news articles ashfall was reported in several villages in the Musuk, Tamansari, and Kemalang districts on 19 January. The Alert Level remained at 3 (on a scale of 1-4), and the public were warned to stay 5 km away from the summit. Sources: Balai Penyelidikan dan Pengembangan Teknologi Kebencanaan Geologi (BPPTKG),Detik News,Detik News
See the detail here

Latest media headlines

Articles: 175 | About casualties: 5 | Last hour: 0

31/01/2021 - Meteo Cronaca DIRETTA VIDEO: INDONESIA, sempre più IMPRES ... Sun, 31 Jan 2021 23:39:00 +0100.

Meteo Cronaca DIRETTA VIDEO: INDONESIA, sempre più IMPRESSIONANTE l'Eruzione del Vulcano MERAPI. Le IMMAGINI. In INDONESIA si risveglia il vulcano MERAPI con una nuova potente eruzione. Paura e timore per le popolazioni che vivono nella zo
...(more)
Meteo Cronaca DIRETTA VIDEO: INDONESIA, sempre più IMPRESSIONANTE l'Er ... Fri, 29 Jan 2021 11:39:00 +0100.

Meteo Cronaca DIRETTA VIDEO: INDONESIA, sempre più IMPRESSIONANTE l'Eruzione del Vulcano MERAPI. Le IMMAGINI. In INDONESIA si risveglia il vulcano MERAPI con una nuova potente eruzione. Paura e timore per le popolazioni che vivono nella zo
...(more)
Meteo Cronaca DIRETTA VIDEO: INDONESIA, nuova ERUZIONE del VULCANO MER ... Thu, 28 Jan 2021 16:13:00 +0100.

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Volcán Merapi de Indonesia expulsó río de lava incandescenteThu, 28 Jan 2021 12:43:00 +0100.

El volcán Merapi, situado en el la región central de la isla indonesia de Java, expulsó este miércoles un río de lava incandescente de más de un kilómetro y medio. En la zona se alzaron grandes nubes de humo y cenizas que provocaron la aler
...(more)

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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 (32), (2), INGV (2), DesInventar (1), WMO (1), INFORM (2),