Event Brief
Iranian mine damaged USS Samuel B. Roberts in 1988
By The BriefBrief · Sources (1)
Filed: Sep 01, 2026 at 2:00 PM ET
Summary: On April 14, 1988, the guided-missile frigate USS Samuel B. Roberts struck an Iranian mine in the Persian Gulf. The blast broke her keel, tore a 21-foot hole in her port side, and let 2,000 tons of seawater into two compartments. The mine cost about $1,500, while repairs exceeded $90 million.
WHO: Iranian mine
WHAT: USS Samuel B. Roberts struck an Iranian mine in the Persian Gulf, causing major hull damage and flooding.
WHEN: Apr 14, 1988
WHERE: Persian Gulf
WHY: The ship struck an Iranian mine that was laid deeper than others and could not be seen from the deck.
ℹ️ This event is analyzed using pattern arcs, velocity indicators, and source analysis in our MI Console.
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