#238 ALMA GRACE // Vessel Intelligence System

Intelligence Overview

ALMA GRACE · MMSI 368253360 · 🇺🇸 US · Primary Port: New Orleans

PERIOD: JAN–DEC 2024

⚠ INTELLIGENCE ASSESSMENT: ALMA GRACE ranks #238 of 69,461 monitored vessels with 90 anomalous detections across 12 months. Composite risk score: 0.9500 (CRITICAL). Active alert types: DARK_VESSEL, POSITION_JUMP, ZIGZAG.

Global Rank

#238

of 69,461 vessels

Composite Score

0.9500

CRITICAL

Total Detections

90

Months Active

12/12

Unique Ports

5

Dark Events

6

AIS blackout

Position Jumps

2

GPS spoofing

Max Jump

1,555km

Monthly Detection Volume

1
9

10
12

11
8

12
1

2
7

3
5

4
4

2024 MONTHLY DETECTIONS

Alert Type Distribution

ZIGZAG

38

DARK_VESSEL

6

POSITION_JUMP

2

Key Intelligence Findings

AIS Blackout Confirmed — 6 Events

Deliberate AIS transponder deactivation detected. Each event represents a period where ALMA GRACE was operating outside electronic surveillance. Consistent with covert cargo transfer or evasion operations.

GPS Spoofing — 2 Position Jumps

AIS coordinates fabricated at impossible locations. Maximum jump of 1,555 km confirms the AIS transmitter is broadcasting false positions. Systematic identity concealment is in progress.

Evasion Navigation — 38 Zigzag Events

Erratic course-over-ground patterns up to 148.6° std deviation, far exceeding the 50° anomaly threshold. Pattern consistent with surveillance evasion maneuvers or anchor position AIS noise.

Port Detection Summary

🇺🇸

New Orleans

27

avg 0.674

🇺🇸

Galveston

11

avg 0.585

🇺🇸

Chicago

4

avg 0.648

🇺🇸

Houston

3

avg 0.627

🇺🇸

Detroit

1

avg 0.843

Monthly Alert Log — All Months

Month	Detections	Severity	Score	Nearest Port	Alert Types
January 2024	9	HIGH	0.7533	New Orleans	ZIGZAG; DARK_VESSEL
February 2024	7	HIGH	0.7731	Chicago	DARK_VESSEL; ZIGZAG
March 2024	5	CRITICAL	0.9000	Galveston	ZIGZAG
April 2024	4	CRITICAL	0.9000	New Orleans	ZIGZAG
May 2024	7	CRITICAL	0.9000	New Orleans	ZIGZAG
June 2024	10	HIGH	0.7703	New Orleans	ZIGZAG
July 2024	11	CRITICAL	0.9000	Galveston	ZIGZAG
August 2024	9	CRITICAL	0.9000	New Orleans	ZIGZAG
September 2024	7	CRITICAL	0.9000	New Orleans	ZIGZAG
October 2024	12	CRITICAL	0.9000	New Orleans	ZIGZAG
November 2024	8	HIGH	0.8234	New Orleans	ZIGZAG; DARK_VESSEL; POSITION_JUMP
December 2024	1	CRITICAL	0.9500	Galveston	POSITION_JUMP

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	6 events detected	CRITICAL
GPS Spoofing / Position Jump	CONFIRMED	2 jumps · max 1555.4km	CRITICAL
Velocity Fraud / Speed Anomaly	NOT DETECTED	—	LOW
Evasion Navigation / Zigzag	CONFIRMED	38 events · max COG std 148.6°	HIGH
Ship-to-Ship Rendezvous	NOT DETECTED	—	LOW
Multi-Port Operations	CONFIRMED	5 unique ports	HIGH

Operational Profile

Primary AO

New Orleans and surrounding maritime zone

Active Period

12 months of continuous alert activity in 2024

Alert Density

90 detections across 46 individual events (avg 7.5/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 148.6°). Consistent with surveillance evasion or at-anchor AIS manipulation. Count: 38 events.

HIGH CONFIDENCE
38 events

MAR-T004

AIS-MAN-001

AIS Blackout

Deliberate AIS transponder deactivation to create surveillance gaps. Count: 6 events. Each event represents an unmonitored operational window.

HIGH CONFIDENCE
6 events

MAR-T002

AIS-MAN-003

GPS Spoofing

GPS coordinate spoofing — AIS positions fabricated at impossible locations. Max jump: 1555.4km. Implies deliberate identity concealment. Count: 2 events.

HIGH CONFIDENCE
2 events

Risk Analysis

Composite risk scoring · Weighted indicator model · Quantus v2.4

Composite Score

0.9500

CRITICAL

Avg Detection Score

0.8642

Global Rank

#238

of 69,461 vessels

Weighted Indicator Scoring

Formula: (Dark×3) + (Rendezvous×4) + (PosJump×2) + (Speed×1) + (Zigzag×0.5) + (MaxScore×50)

Indicator	Count	Weight	Contribution
DARK_VESSEL	6	×3	18.0
RENDEZVOUS	0	×4	0.0
POSITION_JUMP	2	×2	4.0
SPEED_ANOMALY	0	×1	0.0
ZIGZAG	38	×0.5	19.0
MaxSingleScore	0.9500	×50	47.5
COMPOSITE TOTAL	Normalized [0,1]		0.9500 CRITICAL

⊕ Position Jump Detections

Indicator: AIS-MAN-003 · 2 events · Max jump: 1,555 km

GPS SPOOFING

Position jumps confirm GPS coordinate spoofing — AIS positions fabricated at impossible locations. ALMA GRACE has 2 confirmed position jumps with maximum displacement of 1,555 km.

Total Events

2

Max Jump Distance

1,555 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 · 38 events · Max COG std: 148.6°

EVASION PATTERN

Zigzag events are triggered when course-over-ground (COG) standard deviation exceeds 50°. ALMA GRACE records COG deviations up to 148.6° — consistent with surveillance evasion maneuvers or at-anchor AIS noise manipulation.

Total Events

38

Max COG Std Dev

148.6°

Threshold

50°

Zigzag Events (Top 50 by COG deviation)

Date	COG Std Dev (°)	Score	Severity	Port	Coordinates

◐ Dark Vessel Events

Indicator: AIS-MAN-001 · 6 AIS blackout events detected

AIS BLACKOUT

⚠ HIGH SIGNIFICANCE: Dark vessel events represent deliberate AIS transponder deactivation — a primary indicator of intentional surveillance evasion, covert cargo transfer, or sanctions circumvention.

Dark Vessel Events

6

Indicator

AIS-MAN-001

Risk Level

CRITICAL

◐ DARK EVENT #1 — 2024-01-14T10:30:33

AIS BLACKOUT

Location

30.0583°N, 93.6771°W — Galveston

AIS Gap Duration

9.5 hours

Pre-Blackout Speed

5.9 knots SOG

Displacement

74.0 NM from port during gap

Score

0.6213 · LOW

Assessment

AIS gap consistent with deliberate concealment.

◐ DARK EVENT #2 — 2024-02-05T07:51:13

AIS BLACKOUT

Location

37.4643°N, 88.1584°W — Chicago

AIS Gap Duration

14.7 hours

Pre-Blackout Speed

4.5 knots SOG

Displacement

266.1 NM from port during gap

Score

0.7085 · MEDIUM

Assessment

AIS gap consistent with deliberate concealment.

◐ DARK EVENT #3 — 2024-02-11T00:10:04

AIS BLACKOUT

Location

38.6345°N, 83.6982°W — Detroit

AIS Gap Duration

22.7 hours

Pre-Blackout Speed

6.8 knots SOG

Displacement

224.0 NM from port during gap

Score

0.8429 · HIGH

Assessment

AIS gap consistent with deliberate concealment.

◐ DARK EVENT #4 — 2024-02-15T02:27:19

AIS BLACKOUT

Location

38.0603°N, 85.9145°W — Chicago

AIS Gap Duration

8.6 hours

Pre-Blackout Speed

7.4 knots SOG

Displacement

242.4 NM from port during gap

Score

0.5795 · LOW

Assessment

AIS gap consistent with deliberate concealment.

◐ DARK EVENT #5 — 2024-11-08T08:07:19

AIS BLACKOUT

Location

35.3444°N, 94.7183°W — Houston

AIS Gap Duration

8.0 hours

Pre-Blackout Speed

6.3 knots SOG

Displacement

336.9 NM from port during gap

Score

0.5557 · LOW

Assessment

AIS gap consistent with deliberate concealment.

◐ DARK EVENT #6 — 2024-11-17T01:01:16

AIS BLACKOUT

Location

30.0912°N, 93.2979°W — Galveston

AIS Gap Duration

11.6 hours

Pre-Blackout Speed

5.8 knots SOG

Displacement

91.5 NM from port during gap

Score

0.6462 · LOW

Assessment

AIS gap consistent with deliberate concealment.

Port History

5 distinct port areas · US primary flag state

Complete Port Detection Summary

Port	Country	Detections	Avg Score	Avg Dist NM	Risk
New Orleans	🇺🇸	27	0.6740	43.2	STANDARD
Galveston	🇺🇸	11	0.5849	33.3	STANDARD
Chicago	🇺🇸	4	0.6485	249.3	STANDARD
Houston	🇺🇸	3	0.6273	288.4	STANDARD
Detroit	🇺🇸	1	0.8429	224.0	STANDARD

🇺🇸 New Orleans — Port Profile

27 detections · Avg score 0.6740 · Avg distance 43.2 NM

LOW RISK

Total Detections

27

Primary port of operation

Avg Alert Score

0.6740

Avg Distance NM

43.2

Port proximity zone

Detection Types at New Orleans

ZIGZAG

27

Coordinates: 29.944°N, 90.063°W

Port Intelligence Notes

Port Country

🇺🇸 US

Risk Classification

LOW — Standard port monitoring applies

Detection Share

27 of 46 total detections (58.7%)

Avg Distance from Port

43.2 NM — consistent with port proximity operations

🇺🇸 Galveston — Port Profile

11 detections · Avg score 0.5849 · Avg distance 33.3 NM

LOW RISK

Total Detections

11

Secondary port

Avg Alert Score

0.5849

Avg Distance NM

33.3

Port proximity zone

Detection Types at Galveston

ZIGZAG

8

DARK_VESSEL

2

POSITION_JUMP

1

Coordinates: 29.301°N, 94.798°W

Port Intelligence Notes

Port Country

🇺🇸 US

Risk Classification

LOW — Standard port monitoring applies

Detection Share

11 of 46 total detections (23.9%)

Avg Distance from Port

33.3 NM — consistent with port proximity operations

🇺🇸 Chicago — Port Profile

4 detections · Avg score 0.6485 · Avg distance 249.3 NM

LOW RISK

Total Detections

4

Secondary port

Avg Alert Score

0.6485

Avg Distance NM

249.3

Possible spoofed coords

Detection Types at Chicago

DARK_VESSEL

2

ZIGZAG

2

Port Intelligence Notes

Port Country

🇺🇸 US

Risk Classification

LOW — Standard port monitoring applies

Detection Share

4 of 46 total detections (8.7%)

Avg Distance from Port

249.3 NM — anomalously high, suggests spoofed coordinates

🇺🇸 Houston — Port Profile

3 detections · Avg score 0.6273 · Avg distance 288.4 NM

LOW RISK

Total Detections

3

Secondary port

Avg Alert Score

0.6273

Avg Distance NM

288.4

Possible spoofed coords

Detection Types at Houston

ZIGZAG

1

DARK_VESSEL

1

POSITION_JUMP

1

Coordinates: 29.749°N, 95.362°W

Port Intelligence Notes

Port Country

🇺🇸 US

Risk Classification

LOW — Standard port monitoring applies

Detection Share

3 of 46 total detections (6.5%)

Avg Distance from Port

288.4 NM — anomalously high, suggests spoofed coordinates

🇺🇸 Detroit — Port Profile

1 detections · Avg score 0.8429 · Avg distance 224.0 NM

LOW RISK

Total Detections

1

Secondary port

Avg Alert Score

0.8429

Avg Distance NM

224.0

Possible spoofed coords

Detection Types at Detroit

DARK_VESSEL

1

Port Intelligence Notes

Port Country

🇺🇸 US

Risk Classification

LOW — Standard port monitoring applies

Detection Share

1 of 46 total detections (2.2%)

Avg Distance from Port

224.0 NM — anomalously high, suggests spoofed coordinates

Ownership Intelligence

MMSI registry · Flag state analysis · Beneficial ownership investigation

Vessel Name

ALMA GRACE

MMSI

368253360

Flag State (MMSI-derived)

🇺🇸 US

MID Code

368 → 🇺🇸 US

Primary Port

New Orleans

Detection Period

12 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)