Widespread GPS Jamming Across Strait Of Hormuz
Tracking indicates declines in maritime traffic in the Mideast #Gulf since the Israel-Iran conflict began on Friday, June 13
(ZeroHedge) – Earlier reports confirmed that six supertankers abruptly reversed course in the Strait of Hormuz.
Now, new alerts indicate Iranian missiles have been spotted over Doha.
This brings us to GPSJam—a site that publishes daily heat maps of GPS/GNSS disruptions impacting aircraft—which now shows widespread “high-interference” GPS jamming across the critical maritime chokepoint. This suggests further disruptions to maritime navigation in the waterway.
“Maritime activity slows in Gulf,” private data and analytics firm Kpler wrote on X.
Maritime activity slows in Gulf
Kpler vessel tracking indicates declines in maritime traffic in the Mideast #Gulf since the Israel-Iran conflict began on Friday, June 13.
In addition to the risks of conflict escalation, subsequent navigation system interference and disruption… pic.twitter.com/NzPmm88k5M
— Kpler (@Kpler) June 23, 2025
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The clock is ticking as Iran vows retaliation.
Iranian military officials and members of parliament warned that the U.S. will face severe consequences for its stealth bomber strikes on three of its nuclear facilities. While the exact nature of Iran’s response remains uncertain, traders and analysts are hyper-focused on the potential for a partial—or even full—closure of the critical Strait of Hormuz, a maritime chokepoint that handles 20% of global energy flows.
With Iranian retaliation strikes appearing imminent, supertankers navigating the narrow, critical waterway are increasingly making U-turns to avoid potential missile or drone attacks. The number of U-turns of supertankers has now ticked up to six.
Here’s more from The Telegraph:
Supertankers have performed U-turns in the Strait of Hormuz amid uncertainty over how Iran will retaliate against U.S. strikes on its nuclear sites.
Six of the giant vessels, some capable of carrying 2m barrels of crude, turned back after entering the crucial trade route over the last 24 hours, according to vessel tracking data from MarineTraffic.
Three of the ships – named the Coswisdom Lake, South Loyalty and Damsgaard – eventually made second U-turns and headed through the Strait today.
It comes after Greece’s shipping ministry warned on Sunday that the country’s owners should think twice about using the route.
Meanwhile two large Japanese shipping companies said they will cut exposure to the strait, where a fifth of the world’s oil and gas supplies pass through.
In energy markets, Goldman analysts laid out two scenarios:
- If only Iran supply were to drop by 1.75mb/d, they estimate that Brent would peak of around $90, with a decline back to the $60s in 2026;
- If oil flows through the Strait of Hormuz were to drop by 50% for one month and then were to remain down 10% for another 11 months, they estimate that Brent would briefly jump to a peak of around $110.
The analysts also noted:
They also expect European natural gas and LNG markets to price a somewhat higher probability of a large supply disruption. A hypothetical sustained and very large disruption of energy supply transit through the Strait of Hormuz, would likely push oil and European natural gas prices above $110/bbl and 100 EUR/MWh, respectively, given the nearly 20% disruption to global energy supplies.
Latest in energy markets over the last day:
- Rabo: Even If Iran Does Not Close Hormuz, Insurance Costs Will Soar Pushing Oil Prices Higher
- Oil Shorts Are Betting Iran Situation Will Not Escalate
- Morgan Stanley: The Three Scenarios For Oil
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Two supertankers—Coswisdom Lake and South Loyalty—each capable of carrying 2 million barrels of crude, abruptly altered course in the Strait of Hormuz over the weekend after U.S. stealth bomber strikes on Iran’s nuclear facilities.
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