9 April 2020 PRELIMINARY SATELLITE-DERIVED DAMAGE ASSESSMENT Nusa Tenggara Timur Province, Indonesia Status: Mudflow and flood water detected Further action(s): continue monitoring INDONESIA Nusa Tenggara Timur 2 Nusa Tenggara Timur AOI 1 AOI 2 AOI 3 Flores Timur Lembata Alor Flores island Timor Sumba island Sawu island Raijua island Rote island 3 AOI 1 Mud flow in Adonara Timur, Flores Timur district, Nusa Tenggara Timur Mud Flow Mud Flow Affected Village Mud Flow Affected Agricultural Area Affected Village Flores Timur Image center: 08°22'37.2“ S 123°06'07.6“ 500 m. E Sentinel-12/06/20202 satellite image acquired on 8 Apr 2021 4 4 Flores Timur Image center: AOI 1 Adonara Timur, Flores Timur District, 08°23'34.5“ S Nusa Tenggara Timur Province 123°03'38.4“ E AFTER BEFORE Mud Flow Affected Village 300 m. Sentinel-2 satellite image acquired on 8 Apr 2021 Sentinel-2 satellite image acquired on 24 Mar 2021 5 Flores Timur Image center: AOI 1 Adonara Timur, Flores Timur District, 08°22'49.5“ S Nusa Tenggara Timur Province 123°09'42.2“ E AFTER BEFORE Mud Flow Affected Village 300 m. Sentinel-2 satellite image acquired on 8 Apr 2021 Sentinel-2 satellite image acquired on 14 Mar 2021 6 Flores Timur Image center: AOI 1 Adonara Timur, Flores Timur District, 08°23'02.9“ S Nusa Tenggara Timur Province 123°06'07.1“ E AFTER BEFORE Mud Flow Affected Agricultural Area 300 m. 300 m. Sentinel-2 satellite image acquired on 8 Apr 2021 Sentinel-2 satellite image acquired on 14 Mar 2021 7 AOI 2 Mud flow in IIe Ape, Lembata district, Nusa Tenggara Timur Mud Flow Affected Village Affected Village Mud Flow Affected Village Mud Flow Lembata Mud Flow Affected Agricultural Area Image center: 8°17’02.8“S 123°30'08.4"E 500 m. Sentinel-2 satellite image acquired on 8 Apr 2021 8 8 Image center: AOI 2 IIe Ape, Lambata District, 8°18'03.5“ S 123°31'22.1“ E Nusa Tenggara Timur Province Lembata AFTER BEFORE Mud Flow Potentially Affected Village Affected Agricultural Waipoekang Area 300 m. Sentinel-2 satellite image acquired on 8 Apr 2021 Sentinel-2 satellite image acquired on 24 Mar 2021 9 Image center: AOI 2 IIe Ape, Lambata District, 08°16'06.0“ S 123°28'11.6"E Nusa Tenggara Timur Province Lembata AFTER BEFORE Affected Village Mud Flow Affected Village Affected Village Mud Flow Mud Flow 300 m. Sentinel-2 satellite image acquired on 8 Apr 2021 Sentinel-2 satellite image acquired on 24 Mar 2021 10 AOI 2 Mud flow in Omesuri, Lembata district, Nusa Tenggara Timur Lembata Mud Flow Mud Flow Mud Flow Potentially Affected Village Mud Flow Mud Flow Mud Flow Affected Agricultural Area Image center: 8°20'03.5"S 123°42'30.6"E 300 m. Sentinel-2 satellite image acquired on 8 Apr 2021 11 11 AOI 3 Mud flow in Pantar Timur, Alor district, Nusa Tenggara Timur Alor Mud Flow Mud Flow Mud Flow Affected Village Affected Village Image center: 8°22'13.8"S 124°13'56.1"E 300 m. Sentinel-2 satellite image acquired on 8 Apr 2021 12 12 Image center: AOI 3 Pureman, Alor District, 8°22'03.4"S 124°50'07.2"E Nusa Tenggara Timur Province Alor AFTER BEFORE Mud Flow Mud Flow Affected Village 300 m. Sentinel-2 satellite image acquired on 8 Apr 2021 Sentinel-2 satellite image acquired on 24 Mar 2021 13 SUMMARY OF FINDINGS • Multiple mudflows observed in Flores Timur [AOI1], Lambata [AOI2] and Alor [AOI3] districts as of 8 April 2021 • Several villages along the river in AOI 1 - 3 were affected by the mud flow as of 8 April 2021 • Partially agricultural areas were observed in AOI 1 and 2 as of 8 April 2021 14 COPYRITHS AND SOURCES Data sources: (1) Satellite Image [Post-event] Sentinel-2 acquired on 8 Apr 2021 Contains modified Copernicus Sentinel data [2021] (2) Satellite Image [Pre-event] Sentinel-2 acquired on 14 and 24 Mar 2021 (3) Ancillary data Administrative boundaries : Badan Pusat Statistik / OCHA ROAP Source : HDX • 15 @UNOSAT @UNITAR.unosat UNOSAT, United Nations Institute for Training T +41 022 917 4720 and Research (UNITAR) E [email protected] 7 bis, Avenue de la Paix, CH-1202 Geneva 2, www.unosat.org Switzerland.