US Air Force Drops GBU-57 Massive Ordnance Penetrator on Underground IRGC Bunker in Tehran’s Jamaran District
Executive Summary
OSINT HQ reports that the US Air Force dropped a GBU-57 Massive Ordnance Penetrator on an underground IRGC bunker in Tehran’s Jamaran district. This strike targeted a hardened facility believed to host senior IRGC leaders during Operation Epic Fury. The briefing covers propaganda claims, confirmed strike details, and cumulative impact assessment.
2
Confirmed GBU-57 Uses vs Iran
1
IRGC Bunker Struck in Jamaran
14,000+
Mile Round-Trip B-2 Mission
200 ft
Penetration Depth Capability
30,000 lb
GBU-57 Weapon Weight
Senior IRGC
Leadership Meeting Targeted
🔴 Section One
Propaganda Tracker — Fact-Check Verdicts
The latest GBU-57 strike has triggered a new wave of information operations. OSINT HQ has cross-referenced claims against official statements and independent reporting. Verdicts below are based on multiple verified sources.
SOURCE: IRAN STATE MEDIA
"No damage caused — US bombs missed the bunker"
Iranian state media claimed the strike missed its target. However, reporting from The National Interest and The Wall Street Journal confirms the underground IRGC bunker in Tehran’s Jamaran district was heavily damaged.
🟡 Section Two
Confirmed Strike Log — GBU-57 Deployment
OSINT HQ logs the following details for the April 2026 GBU-57 strike:
| Target | Location | Weapon Used | Platform | Status |
|---|---|---|---|---|
| Underground IRGC Command Bunker | Jamaran District, Northern Tehran | GBU-57 Massive Ordnance Penetrator | B-2 Spirit Stealth Bomber | CONFIRMED STRIKE |
🟢 Aircraft & Weapon Profile
B-2 Spirit Stealth Bomber & GBU-57 Massive Ordnance Penetrator
B-2 Spirit stealth bomber — the only aircraft capable of carrying the GBU-57 Massive Ordnance Penetrator (US Air Force photo)
The Northrop Grumman B-2 Spirit is a stealth strategic bomber designed for long-range penetration missions into heavily defended airspace. It can fly intercontinental distances without refueling and carries the GBU-57 due to its large weapons bay and low-observable design. The GBU-57 Massive Ordnance Penetrator is a 30,000-pound precision-guided bunker-buster bomb with a hardened steel casing and GPS/inertial guidance. It is engineered to penetrate up to 200 feet of earth or reinforced concrete before detonating its 5,300-pound explosive warhead. It was specifically developed to defeat deeply buried targets such as IRGC command bunkers that conventional munitions cannot reach. Only the B-2 can carry the GBU-57. Each aircraft can carry two of the weapons. The long-range missions require multiple aerial refuelings, demonstrating the strategic reach of US airpower.
🔵 Section Three
Base Impact Assessment — Cumulative Effects on IRGC Command
The strike further degrades Iran’s deeply buried command infrastructure. Repeated use of the GBU-57 highlights the vulnerability of even hardened sites to US stealth long-range strikes. Estimated impact includes disruption of IRGC coordination and potential leadership losses. OSINT HQ will continue tracking developments in Operation Epic Fury.
OSINT HQ — Related Coverage
Sources
- • The National Interest — US Air Force Drops Another GBU-57 on Iran
- • The Wall Street Journal — B-2 Bombers Strike IRGC Compound near Tehran
- • Army Recognition — Details on GBU-57 Deployment and Jamaran Strike
- • CBS News — Contextual Strike Location Maps (Tehran area)
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