Nyiragongo Volcano Lava Flow Impact Analysis, May 2021

UNITAR-UNOSAT analysis using a Sentinel-1 satellite image acquired on 25 May 2021 identified about 144 structures and 1,400 meters of roads potentially affected by lava from the 22 May 2021 eruption near Kanyanza village, DR Congo. This dataset provides geospatial vectors of the lava flow extent and affected infrastructure. The analysis is preliminary and was produced by the United Nations Satellite Centre (UNOSAT).

Use Cases

• Damage assessment mapping based on satellite-detected affected structures and roads.
• Disaster response planning based on the lava flow extent.
• Geospatial analysis of volcanic eruption impacts based on the Sentinel-1 imagery.
• Validation of remote sensing models for lava flow hazard assessment.

Strengths

• Quantifies impact with specific counts: about 144 structures and 1,400 meters of roads.
• Based on authoritative satellite imagery analysis by UNITAR-UNOSAT.
• Provides precise temporal context with imagery from 25 May 2021.

Limitations

• Description metadata is limited; actual data quality requires manual inspection after download.
• The analysis is preliminary and has not been validated in the field.
• Column-level documentation is absent; field semantics must be inferred after download.

Provenance

Source

United Nations Satellite Centre (UNOSAT)

Collection Method

Satellite image analysis using Sentinel-1 data.

Time Range

May 2021

Freshness

Last updated 2026-05-09 10:10:01.509745; freshness should be verified.

Geography

Kanyanza village, Nyiragongo district, Nord-Kivu province, Democratic Republic of the Congo