Intelligence Overview
GC BERYL · MMSI 477735200 · 🇭🇰 US · Primary Port: Galveston
PERIOD: JAN–DEC 2024
Global Rank
#388
of 69,461 vessels
Composite Score
0.9500
CRITICAL
Total Detections
47
Months Active
9/12
Unique Ports
8
Dark Events
4
AIS blackout
Position Jumps
1
GPS spoofing
Max Jump
409km
Monthly Detection Volume
2024 MONTHLY DETECTIONS
Alert Type Distribution
Key Intelligence Findings
AIS Blackout Confirmed — 4 Events
Deliberate AIS transponder deactivation detected. Each event represents a period where GC BERYL was operating outside electronic surveillance. Consistent with covert cargo transfer or evasion operations.
GPS Spoofing — 1 Position Jumps
AIS coordinates fabricated at impossible locations. Maximum jump of 409 km confirms the AIS transmitter is broadcasting false positions. Systematic identity concealment is in progress.
Evasion Navigation — 29 Zigzag Events
Erratic course-over-ground patterns up to 112.9° std deviation, far exceeding the 50° anomaly threshold. Pattern consistent with surveillance evasion maneuvers or anchor position AIS noise.
Port Detection Summary
Monthly Alert Log — All Months
| Month | Detections | Severity | Score | Nearest Port | Alert Types |
|---|---|---|---|---|---|
| January 2024 | 4 | HIGH | 0.7906 | New Orleans | ZIGZAG; DARK_VESSEL |
| February 2024 | 5 | MEDIUM | 0.6619 | Galveston | ZIGZAG |
| April 2024 | 10 | HIGH | 0.8109 | Wilmington NC | ZIGZAG; DARK_VESSEL |
| June 2024 | 1 | LOW | 0.4747 | Galveston | ZIGZAG |
| July 2024 | 7 | CRITICAL | 0.9000 | Corpus Christi | ZIGZAG |
| September 2024 | 5 | CRITICAL | 0.9500 | Galveston | ZIGZAG; SPEED_ANOMALY |
| October 2024 | 2 | MEDIUM | 0.5990 | Galveston | ZIGZAG; DARK_VESSEL |
| November 2024 | 9 | HIGH | 0.8759 | Savannah | ZIGZAG; POSITION_JUMP; DARK_VESSEL |
| December 2024 | 4 | MEDIUM | 0.7226 | Galveston | ZIGZAG |
Activity Map
Detection events plotted · Color-coded by alert type · Drag to pan · Scroll to zoom
● Speed Anomaly
● Position Jump
● Zigzag
● Dark Vessel
● Rendezvous
Threat Intelligence
Analytical confidence: HIGH · Multi-indicator assessment
Threat Indicators Matrix
| Indicator | Status | Evidence | Confidence |
|---|---|---|---|
| AIS Blackout / Dark Vessel | CONFIRMED | 4 events detected | CRITICAL |
| GPS Spoofing / Position Jump | CONFIRMED | 1 jumps · max 408.6km | CRITICAL |
| Velocity Fraud / Speed Anomaly | NOT DETECTED | — | LOW |
| Evasion Navigation / Zigzag | CONFIRMED | 29 events · max COG std 112.9° | HIGH |
| Ship-to-Ship Rendezvous | NOT DETECTED | — | LOW |
| Multi-Port Operations | CONFIRMED | 8 unique ports | HIGH |
| High-Risk Port Proximity: Havana | CONFIRMED | 2 detections | HIGH |
Operational Profile
Primary AO
Galveston and surrounding maritime zone
Active Period
9 months of continuous alert activity in 2024
Alert Density
47 detections across 34 individual events (avg 5.2/month)
Active Techniques
◐ DARK ⊕ POS JUMP ⟳ ZIGZAG
Threat Category
High-Confidence AIS Manipulation — Multiple confirmed evasion techniques
TTP Analysis
Tactics, Techniques & Procedures — Maritime ATT&CK Framework
MAR-T003
RTE-ANO-005
Evasion Navigation
Erratic COG changes exceeding 50° threshold (max 112.9°). Consistent with surveillance evasion or at-anchor AIS manipulation. Count: 29 events.
HIGH CONFIDENCE
29 events
29 events
MAR-T004
AIS-MAN-001
AIS Blackout
Deliberate AIS transponder deactivation to create surveillance gaps. Count: 4 events. Each event represents an unmonitored operational window.
HIGH CONFIDENCE
4 events
4 events
MAR-T002
AIS-MAN-003
GPS Spoofing
GPS coordinate spoofing — AIS positions fabricated at impossible locations. Max jump: 408.6km. Implies deliberate identity concealment. Count: 1 events.
HIGH CONFIDENCE
1 events
1 events
Risk Analysis
Composite risk scoring · Weighted indicator model · Quantus v2.4
Composite Score
0.9500
CRITICAL
Avg Detection Score
0.7540
Global Rank
#388
of 69,461 vessels
Weighted Indicator Scoring
| Indicator | Count | Weight | Contribution |
|---|---|---|---|
| DARK_VESSEL | 4 | ×3 | 12.0 |
| RENDEZVOUS | 0 | ×4 | 0.0 |
| POSITION_JUMP | 1 | ×2 | 2.0 |
| SPEED_ANOMALY | 0 | ×1 | 0.0 |
| ZIGZAG | 29 | ×0.5 | 14.5 |
| MaxSingleScore | 0.9500 | ×50 | 47.5 |
| COMPOSITE TOTAL | Normalized [0,1] | 0.9500 CRITICAL | |
⊕ Position Jump Detections
Indicator: AIS-MAN-003 · 1 events · Max jump: 409 km
Total Events
1
Max Jump Distance
409 km
Indicator ID
AIS-MAN-003
Position Jump Events (Top 50 by distance)
| Date | Jump (km) | Implied Speed (kn) | Score | Severity | Spoofed-To Port | Coordinates |
|---|
⟳ Zigzag / Erratic Navigation
Indicator: RTE-ANO-005 · 29 events · Max COG std: 112.9°
Total Events
29
Max COG Std Dev
112.9°
Threshold
50°
Zigzag Events (Top 50 by COG deviation)
| Date | COG Std Dev (°) | Score | Severity | Port | Coordinates |
|---|
◐ Dark Vessel Events
Indicator: AIS-MAN-001 · 4 AIS blackout events detected
Dark Vessel Events
4
Indicator
AIS-MAN-001
Risk Level
CRITICAL
◐ DARK EVENT #1 — 2024-01-31T11:39:35
AIS BLACKOUT
Location
23.3301°N, 93.3984°W — Brownsville
AIS Gap Duration
10.9 hours
Pre-Blackout Speed
12.3 knots SOG
Displacement
275.0 NM from port during gap
Score
0.6921 · LOW
Assessment
AIS gap consistent with deliberate concealment.
◐ DARK EVENT #2 — 2024-04-30T00:07:25
AIS BLACKOUT
Location
23.5025°N, 82.8536°W — Havana
AIS Gap Duration
10.8 hours
Pre-Blackout Speed
13.0 knots SOG
Displacement
35.6 NM from port during gap
Score
0.7307 · HIGH
Assessment
AIS gap consistent with deliberate concealment.
◐ DARK EVENT #3 — 2024-10-04T00:01:18
AIS BLACKOUT
Location
24.0420°N, 80.8483°W — Key West
AIS Gap Duration
13.1 hours
Pre-Blackout Speed
13.7 knots SOG
Displacement
59.6 NM from port during gap
Score
0.7736 · HIGH
Assessment
AIS gap consistent with deliberate concealment.
◐ DARK EVENT #4 — 2024-11-25T04:10:44
AIS BLACKOUT
Location
26.1439°N, 89.5188°W — New Orleans
AIS Gap Duration
13.0 hours
Pre-Blackout Speed
14.4 knots SOG
Displacement
230.5 NM from port during gap
Score
0.7991 · HIGH
Assessment
AIS gap consistent with deliberate concealment.
Port History
8 distinct port areas · US primary flag state
Complete Port Detection Summary
| Port | Country | Detections | Avg Score | Avg Dist NM | Risk |
|---|---|---|---|---|---|
| Galveston | 🇺🇸 | 14 | 0.6265 | 75.3 | STANDARD |
| Savannah | 🇺🇸 | 6 | 0.6626 | 8.9 | STANDARD |
| New Orleans | 🇺🇸 | 4 | 0.7302 | 81.0 | STANDARD |
| Wilmington NC | 🇺🇸 | 3 | 0.8044 | 22.9 | STANDARD |
| Havana | 🇨🇺 | 2 | 0.7925 | 35.3 | HIGH |
| Key West | 🇺🇸 | 2 | 0.6734 | 57.7 | STANDARD |
| Corpus Christi | 🇺🇸 | 2 | 0.6668 | 69.4 | STANDARD |
| Brownsville | 🇺🇸 | 1 | 0.6921 | 275.0 | STANDARD |
🇺🇸 Galveston — Port Profile
14 detections · Avg score 0.6265 · Avg distance 75.3 NM
Total Detections
14
Primary port of operation
Avg Alert Score
0.6265
Avg Distance NM
75.3
Port proximity zone
Detection Types at Galveston
Coordinates: 29.301°N, 94.798°W
Port Intelligence Notes
Port Country
🇺🇸 US
Risk Classification
LOW — Standard port monitoring applies
Detection Share
14 of 34 total detections (41.2%)
Avg Distance from Port
75.3 NM — consistent with port proximity operations
🇺🇸 Savannah — Port Profile
6 detections · Avg score 0.6626 · Avg distance 8.9 NM
Total Detections
6
Secondary port
Avg Alert Score
0.6626
Avg Distance NM
8.9
Port proximity zone
Detection Types at Savannah
Coordinates: 32.083°N, 81.100°W
Port Intelligence Notes
Port Country
🇺🇸 US
Risk Classification
LOW — Standard port monitoring applies
Detection Share
6 of 34 total detections (17.6%)
Avg Distance from Port
8.9 NM — consistent with port proximity operations
🇺🇸 New Orleans — Port Profile
4 detections · Avg score 0.7302 · Avg distance 81.0 NM
Total Detections
4
Secondary port
Avg Alert Score
0.7302
Avg Distance NM
81.0
Port proximity zone
Detection Types at New Orleans
Coordinates: 29.944°N, 90.063°W
Port Intelligence Notes
Port Country
🇺🇸 US
Risk Classification
LOW — Standard port monitoring applies
Detection Share
4 of 34 total detections (11.8%)
Avg Distance from Port
81.0 NM — consistent with port proximity operations
🇺🇸 Wilmington NC — Port Profile
3 detections · Avg score 0.8044 · Avg distance 22.9 NM
Total Detections
3
Secondary port
Avg Alert Score
0.8044
Avg Distance NM
22.9
Port proximity zone
Detection Types at Wilmington NC
Coordinates: 34.235°N, 77.948°W
Port Intelligence Notes
Port Country
🇺🇸 US
Risk Classification
LOW — Standard port monitoring applies
Detection Share
3 of 34 total detections (8.8%)
Avg Distance from Port
22.9 NM — consistent with port proximity operations
🇨🇺 Havana — Port Profile
2 detections · Avg score 0.7925 · Avg distance 35.3 NM
Total Detections
2
Secondary port
Avg Alert Score
0.7925
Avg Distance NM
35.3
Port proximity zone
Detection Types at Havana
Coordinates: 23.137°N, 82.377°W
Port Intelligence Notes
Port Country
🇨🇺 CU
Risk Classification
HIGH — HIGH
Detection Share
2 of 34 total detections (5.9%)
Avg Distance from Port
35.3 NM — consistent with port proximity operations
🇺🇸 Key West — Port Profile
2 detections · Avg score 0.6734 · Avg distance 57.7 NM
Total Detections
2
Secondary port
Avg Alert Score
0.6734
Avg Distance NM
57.7
Port proximity zone
Detection Types at Key West
Coordinates: 24.559°N, 81.800°W
Port Intelligence Notes
Port Country
🇺🇸 US
Risk Classification
LOW — Standard port monitoring applies
Detection Share
2 of 34 total detections (5.9%)
Avg Distance from Port
57.7 NM — consistent with port proximity operations
🇺🇸 Corpus Christi — Port Profile
2 detections · Avg score 0.6668 · Avg distance 69.4 NM
Total Detections
2
Secondary port
Avg Alert Score
0.6668
Avg Distance NM
69.4
Port proximity zone
Detection Types at Corpus Christi
Coordinates: 27.800°N, 97.396°W
Port Intelligence Notes
Port Country
🇺🇸 US
Risk Classification
LOW — Standard port monitoring applies
Detection Share
2 of 34 total detections (5.9%)
Avg Distance from Port
69.4 NM — consistent with port proximity operations
🇺🇸 Brownsville — Port Profile
1 detections · Avg score 0.6921 · Avg distance 275.0 NM
Total Detections
1
Secondary port
Avg Alert Score
0.6921
Avg Distance NM
275.0
Possible spoofed coords
Detection Types at Brownsville
Port Intelligence Notes
Port Country
🇺🇸 US
Risk Classification
LOW — Standard port monitoring applies
Detection Share
1 of 34 total detections (2.9%)
Avg Distance from Port
275.0 NM — anomalously high, suggests spoofed coordinates
Ownership Intelligence
MMSI registry · Flag state analysis · Beneficial ownership investigation
Vessel Name
GC BERYL
MMSI
477735200
Flag State (MMSI-derived)
🇭🇰 US
MID Code
477 → 🇭🇰 US
Primary Port
Galveston
Detection Period
9 months (2024)
Registered Owner
Pending registry lookup
Beneficial Owner
Requires FinCEN CDD query
OFAC SDN Status
Pending cross-reference
Recommended Action
Physical inspection + full registry query
Vessel Type Analysis
AIS declared type · Physical capability vs. observed behavior
Type Mismatch Assessment
AIS Declared Type
vessel_type=37 (Pleasure Craft)
Behavior Consistency
Requires investigation
Speed Capability
Within or near physical limits for vessel type
Inspection Priority
HIGH — Recommend USCG/CBSA physical boarding and documentation review
Applicable Statutes
47 C.F.R. § 80.953 (AIS falsification) · 33 C.F.R. § 164.46 (AIS carriage) · 21 U.S.C. § 955 (maritime drug law)