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 1000062
Name: Merapi (263250)
Lat/Lon: -7.54 , 110.45
Event Date: 12 Mar 2023 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: 13 Mar 2023 07:27 UTC

GDACS Score

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Virtual OSOCC
Meteo assessment
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Indonesia - Volcanic eruption (ECHO 13 Mar 2023)Mon, 13 Mar 2023 11:20

  • On 11 March, Mount Merapi, located between Central Java Province and the Special Region of Yogyakarta, increased its volcanic activity (still ongoing) with pyroclastic and lava flows that descended mostly into the southwestern flank from the summit.
  • Following the eruption, several villages located in the Regencies of Boyolali and Magelang have been affected by volcanic ash but there have been no reports of significant humanitarian impact.
  • National authorities issued a 7 km potential danger zone from the crater, the potential hazard is in the form of pyroclastic flows and lava flows through the south-southwest sector including the Boyong River for a maximum of 5 km, the Bedog River, Krasak, Bebeng for a maximum of 7 km and through the southeastern sector that includes the Woro River for a maximum of 3 km and the Gendol River for 5 km. 
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 08 Mar 2023 08:06.
BPPTKG reported that the eruption at Merapi (on Java) continued during 24 February-2 March and seismicity remained at high levels. The SW lava dome produced two lava avalanches that traveled as far as 1 km down the SW flank (upstream in the Bebeng and Boyong drainages). No significant morphological changes to the central and SW lava domes were evident in webcam images. 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

Latest media headlines

Mount Merapi emits incandescent lava avalanches 11 times: Official 3/16/2023 9:35:00 AM.

Mount Merapi's incandescent lava avalanche as seen from Turi, Sleman, Yogyakarta, Monday, March 13, 2023. (ANTARA PHOTO/Hendra Nurdiyansyah/nym/rst) Yogyakarta (ANTARA) - Mount Merapi, on the border of Central Java and Yogyakarta, emitte
...(more)
14/03/2023 - Meteo Cronaca diretta: (Video) Indonesia, immagini catast.. 3/14/2023 6:40:00 PM.

Meteo Cronaca diretta: (Video) Indonesia, immagini catastrofiche dopo l'eruzione del vulcano Merapi. Indonesia, 14 marzo 2023. Il vulcano Merapi è tornato a eruttare e lo ha fatto, ancora una volta, in maniera spettacolare; le immagini d
...(more)
Il vulcano Merapi in Indonesia erutta cenere e gas 3/14/2023 5:28:00 PM.

(ANSA) – ROMA, 14 MAR – Il Monte Merapi, uno dei vulcani più attivi dell’Indonesia, ha eruttato calde nubi di cenere e gas lungo le sue pendici per circa due chilometri. L’eruzione – scrive la Dpa -, è durata 160 secondi, ha precisato un’ag
...(more)
Il vulcano Merapi in Indonesia erutta cenere e gas 3/14/2023 4:58:00 PM.

(Di martedì 14 marzo 2023) Il Monte Merapi , uno dei vulcani più attivi dell' Indonesia , ha erutta to calde nubi di cenere e gas lungo le sue pendici per circa due chilometri. L'eruzione - scrive la Dpa - , è durata 160 secondi, ... : R
...(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), JSR (1),