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 •
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