The Black Sea region — including the Romanian and Turkish coasts and the area around Crimea — has seen persistent GNSS jamming and spoofing affecting aviation and shipping.
Last 24 hours: High· data up to · updated hourly
27%of area-hours with interference in the last 24 h (1,235 observed)
136of 175 areas affected in the last 7 days (86 severe)
92%highest share of affected aircraft in one area (7 days)
86aircraft with spoofing indications in the last 7 days (100 events)
Affected areas — last 7 days
Share of aircraft with degraded GNSS:2–5.0%5–10.0%10–20.0%20–35.0%35–50.0%50%+
Share of observed area-hours in which a notable share of aircraft reported degraded GNSS (≥ 2% of aircraft; dark part ≥ 10%).
Most affected day in this period: Tue 20 Oct (33% of area-hours severely affected).
Day (UTC)
Area-hours
Affected
Severe
Aircraft-hours
Mon 2 Nov
509
159 (31%)
119
11,737
Sun 1 Nov
1,364
327 (24%)
239
32,283
Sat 31 Oct
1,569
314 (20%)
210
33,646
Fri 30 Oct
1,550
319 (21%)
242
32,081
Thu 29 Oct
1,439
319 (22%)
234
30,212
Wed 28 Oct
1,497
419 (28%)
298
32,004
Tue 27 Oct
1,467
339 (23%)
245
31,126
How to read these figures
The region is divided into hexagonal areas of about 1,770 km². For every hour, the monitor checks which share of the aircraft in each area reported degraded GNSS integrity (NIC) via ADS-B. An area-hour counts as affected when that share exceeds the threshold and enough aircraft were present. Spoofing indications are impossible position jumps and large GNSS/barometric altitude differences. These are heuristic indicators — see how the map works for details and limitations.
