Seismic Water Bottom Anomalies in the Gulf of Mexico

Over 230,000 square kilometers of seismic data interpretation maps acoustic amplitude anomalies on the seafloor. The Bureau of Ocean Energy Management (BOEM) has conducted this mapping program since 1998 to understand hydrocarbon seep distribution and related benthic communities. The data is provided as-is by the U.S. Department of the Interior and was last updated in 2026.

Use Cases

• Mapping the distribution of high and low acoustic amplitude anomalies to locate potential natural hydrocarbon seeps.
• Correlating anomaly locations with benthic fauna data to study chemosynthetic and coral community habitats.
• Analyzing the geological framework of the seafloor by characterizing features identified in 3-D time-migrated seismic surveys.

Strengths

• Covers over 230,000 square kilometers of interpreted seismic data.
• Based on 3-D time-migrated seismic surveys with overlapping coverage from two or more surveys in most areas.
• Data collection and mapping program has been ongoing since 1998, providing a long-term perspective.

Limitations

• Data is provided 'as is' with no guarantee of accuracy, correctness, or completeness.
• Specific sample size (row count) and column details are unknown.
• Potential for spatial bias limited to the deep-water Gulf of Mexico region.

Provenance

Source

Bureau of Ocean Energy Management (BOEM), U.S. Department of the Interior.

Collection Method

Identification and mapping of water bottom acoustic amplitude anomalies using 3-D time-migrated seismic surveys.

Time Range

Mapping program active since 1998.

Freshness

Data was last updated in April 2026.

Geography

Deep-water Gulf of Mexico.