ADAM: Geospatial Impact Data for the 2025 Marmara Earthquake

April 23, 2025 earthquake data from the WFP's Automated Disaster Analysis and Mapping (ADAM) system. The dataset contains geospatial information on a magnitude 6.2 event located 25km SE of Marmara Ereglisi, Turkey, which impacted an estimated 290,437 people within a 50km radius. It was last updated on May 21, 2026.

Use Cases

• Map the estimated population exposure based on the 50km impact radius mentioned in the description.
• Analyze the relationship between earthquake depth (10.0 km) and potential ground shaking intensity.
• Model seismic risk for the Marmara region using the provided epicenter coordinates (latitude 40.8395, longitude 28.142).
• Integrate impact data with other geospatial layers for multi-hazard vulnerability assessment.

Strengths

• Provides specific impact metrics, including an estimated 290,437 people affected.
• Includes precise seismic parameters: magnitude 6.2, depth of 10.0 km, and exact epicenter coordinates.
• Sourced from an operational humanitarian analysis system (WFP ADAM), suggesting a defined use case.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for quantitative modeling.
• Description metadata is limited; actual data quality and attribute completeness require manual inspection.

Provenance

Source

WFP Automated Disaster Analysis & Mapping (ADAM)

Collection Method

Automated collection, analysis, and mapping of geospatial and socio-economic information following sudden-onset emergencies.

Time Range

Primary event date: April 23, 2025.

Freshness

Last updated 2026-05-21 21:44:52.414685; freshness should be verified.

Geography

Epicenter 25km SE of Marmara Ereglisi, Turkey (latitude 40.8395, longitude 28.142).