Mount Semeru volcanic eruption, Jawa Timur Province, Indonesia - UNOSAT Live Web Map

**UNOSAT code VO20221206IDN, GDACS Id: 1000057** This map illustrates the potentially affected areas by pyroclastic flow/deposits of the December 2022 Semeru mount eruption in East Java (Indonesia) as detected by satellite images acquired on 4 Dec 2022 10km SE Mount Semeru. Based on analysis of Worldview-3, Spot 6 and Sentinel-2 images acquired on 9, 11 & 12 Dec. 2022 respectively, about 460ha of land appear to be severely affected by the volcanic eruption induced effects in the analyzed area of about 2,000ha. Within this area, UNOSAT has identified 206 affected structures and 10 potentially affected structures. Based on Worldpop population data and affected area by the pyroclastic flow/deposit, about 1,500 people are potentially exposed in this zone. This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to the United Nations Satellite Centre (UNOSAT).

**UNOSAT code VO20221206IDN, GDACS Id: 1000057** This map illustrates the potentially affected areas by pyroclastic flow/deposits of the December 2022 Semeru mount eruption in East Java (Indonesia) as inferred from post eruption satellite images VRRS, Worldview-3, Spot 6, and Sentinel-2, images acquired on 8, 9, 11 & 12 Dec. 2022 respectively. Within this area, UNOSAT has identified 208 affected structures and 221 structures are potentially affected. Based on Worldpop population data, WSF urban areas data, about 7ha of urban areas are affected by the pyroclastic flow/deposit and about 8,000 people are potentially directly exposed to pyroclastic flow in this zone. This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to the United Nations Satellite Centre (UNOSAT).

**UNOSAT code: VO20211205IDN** This map illustrates the potentially affected areas by Lahar and Pyroclastic density currents (PDCs) including geological information of Mount Semeru, Java province, Indonesia as detected by satellite images acquired after the eruption of the Mount Semeru on 4 Dec 2021. UNITAR-UNOSAT analysis used Pleiades images acquired on 10 & 11 Dec 2021 to estimate the affected area by Lahar and Pyroclastic density currents. Within the analyzed area, about 3,220 ha appear to be affected. Based on Worldpop population data and affected area by Lahar and pyroclastic density currents, about 8,400 people are potentially exposed or living close to pyroclastic density area. In addition, base on Esri 2020 Land Cover, potentially affected in tree area ~2,100ha, scrub/shrub area ~ 400 ha, cropland ~ 165 ha, built area ~ 140 ha. Important note: Pyroclastic density currents (PDCs) are perhaps the most hazardous events to local areas during explosive volcanic eruptions. This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to United Nations Satellite Centre (UNOSAT).

**UNOSAT code EQ20221121IDN, GDACS Id: 1347183** Live web map providing geospatial information about damaged caused by the earthquake that stroke Indonesia on 21 November 2022. This web map gives an updated overview over potentially damaged and damaged buildings based on very high-resolution satellite images.

**UNOSAT code: VO20241105IDN, GDACS ID: 1000099** This application provides analaysis related to the Lewotobi volcanic eruption in November 2024.

**UNOSAT code: LS20240512IDN, GDACS ID: 1102617** This application provides geospatial information on the ongoing landslide in Indonesia Important note: The boundaries and names shown, and the designations used on this map do not imply official endorsement or acceptance by the United Nations. The United Nations Satellite Centre. UNOSAT is not responsible for the misuse or misrepresentation of the map.