A spectacular shockwave followed by a massive plume of black smoke. A video viewed more than 8 million times on X reportedly revealsIsrael's use of "thermobaric and pressure bombs"in Gaza. The post was shared by China Pulse, a pro-Beijing account which was recently flagged for spreadingdisinformation.
"These bombs, which burn at a temperature of 3,500 degrees Celsius, are capable of killing thousands in seconds, leaving no trace," the post reads.
Controlled explosion
The FRANCE 24 Observers team had already worked on this videoin November 2025. At the time, online users were claiming that the video was showing the explosion of a "miniature nuclear bomb" in Gaza.
Our team spoke with several experts and found that the footage actually shows a controlled ground-level explosion using conventional explosives to destroy a tunnel dug byHamas.
As for the recent allegations, Trevor Ball, a conflict researcher with the online investigative site Bellingcat,said on Xthat "there's nothing that indicates this is thermobaric".
Conventional explosive device
Gilles Denglos, an explosives expert accredited by the French courts, told our team that the video likely shows a conventional explosive device. "Social media users are talking nonsense. A thermobaric bomb is designed to detonate above the ground, not on it." Denglos said the video shows the explosion of "a significant charge on the ground".
Anotherweaponsexpert who spoke to our team on the condition of anonymity also said that the spectacular shockwave visible in the video was the result of a "completely conventional" explosion:
The expert further explained: "Thermobaric bombs are weapons whose lethality stems from the combined impact of heat and overpressure [Editors note: the bombs heat and the resulting shockwave]. This distinguishes them from munitions whose lethality relies on flying metallic fragments, such as conventional high-explosive shells or defensive grenades."
Al Jazeera investigation on Israeli bombs
These allegations against Israel come in the wake of anAl Jazeera investigationpublished on February 10, which claims the Israeli forces deployed thermal and "thermobaric" weapons in Gaza. According to the report, the intensity of the strikes "made thousands of Palestinians evaporate".
The investigation indicates that the Civil Defence agency in Gaza, which operates as a rescue force under Hamas authorities, has documented 2,842 Palestinians who have "evaporated" since the war began.
However, the Israeli military's alleged use of thermobaric bombs in Gaza remains a subject of debate.
According to the fact-checking outletSnopes, which reviewed Al Jazeeras investigation, it is currently impossible to independently verify the use of such weapons based on the information available at this stage.
We spoke to Michael Shurkin, programme director at the US consulting firm 14 North Strategies, who said the specific model of thermobaric weapons that could be available to the Israeli military for its bombing operations remains unknown. "There is no evidence that the Israeli army has used thermobaric weapons in Gaza. They may have, or they may not have; Al Jazeera provides no concrete proof," Shurkin told us.
In this investigation,Al Jazeeraidentifies several types of bombs used by the Israeli army: MK-84 900kg bombs, BLU-109 bunker busters, and GBU-39 glide bombs. According to official military specifications, none of these models currently in the Israeli arsenal are equipped with thermobaric explosives,Trevor Ball indicated on X.
"The aerial bombs mentioned in the Al Jazeera article are all loaded with aluminised explosives compositions where the addition of aluminium enhances the blast effect by raising the temperature of the resulting combustion gases. However, the use of aluminium is extremely common in explosive devices for artillery, aerial bombs, and naval munitions," noted the weapons expert.
Due to their sheer power, these bombs are indeed capable of disintegrating bodies. However, this is a "common effect" of aerial bombs and not exclusive to thermobaric weapons, the expert said. Nevertheless,Amnesty Internationalhas denounced the Israeli military's use of MK-84 bombs in "deliberate" or "indiscriminate" strikes on residential areas and civilian infrastructure in Gazaasa violation of international law.
According to figures released by the Palestinian Ministry of Health and accepted by theIsraeli army, 72,045 Palestinians have been killed in Gaza as of January 29.
This article has been translated fromthe original in French.
Originally published on France24
