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Home General News

How powerful was the Beirut blast?

TheSun News by TheSun News
August 17, 2020
in General News
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Experts estimate the massive warehouse explosion that sent a devastating blast wave across Beirut could be one of the strongest non-nuclear explosions ever recorded. powerful was Beirut blast?

“On a scale, this explosion is scaled down from a nuclear bomb rather than up from a conventional bomb,” said Roland Alford, managing director of Alford Technologies, a British company that specialises in disposal of explosive ordnance. “This is probably up there among the biggest non-nuclear explosions of all time.”

Experts have estimated the size of the blast as being the equivalent of 200 to 300 tons of high explosives. Here’s what that figure looks like compared to other accidental explosions and conventional weapons.

Weapon yield powerful was Beirut blast?

Power in TNT equivalent

Hellfire missile

0.01 tons

U.S. air-to-ground tactical missile

Mk-82 500lb bomb

Small U.S. unguided bomb

0.1 tons

Mk-84 2,000lb bomb

American general-purpose bomb which entered service in the Vietnam war.

0.5 tons

Tomahawk missile

Intermediate-range cruise missile launched from U.S. Navy ships and submarines at subsonic speed.

0.5 tons

GBU-57 30,000lb bomb

The Massive Ordnance Penetrator (MOP) is a precision-guided “bunker buster” bomb

2.4 tons

Other explosions

Oklahoma bombing – 1995

TNT equivalent

Ammonium nitrate mixed with other substances to make a bomb in an explosion that blew up a federal building in Oklahoma City, killing 168 people

2.5 tons

Chernobyl disaster – 1986

10 tons

Explosion and fire after a reactor meltdown at the Chernobyl power plant. The world’s worst nuclear accident.

GBU-43B (MOAB)

11 tons

“Mother of All Bombs” (MOAB) is the U.S. most powerful non-nuclear weapon, it was first deployed in combat in Afghanistan, 2017.

W54 Davy Crockett nuke

10-20 tons

A small unguided nuclear rocket developed by the U.S. in the 1950s

Texas fertiliser plant – 2013

12.5 tons

An ammonium nitrate deposit exploded in the Texas town of West. 14 people died and about 200 more were injured.

Tianjin

Explosions at a warehouse storing various chemicals including 800 tonnes of ammonium nitrate killed at least 116 people.

CHINA

Tianjin, China – 2015

21 tons

FRANCE

Toulouse

Toulouse, France – 2001

40 Tons

An ammonium nitrate deposit exploded in Toulouse killing 31 and injuring 2,500.

FOAB – ATBIP

44 Tons

The Russian bomb nicknamed the “Father of All Bombs” (FOAB) is reportedly the most powerful non-nuclear weapon in the world.

LEBANON

Beirut

Beirut blast

300-400 tons

Oppau, Germany – 1921

1,000 Tons

GERMANY

Oppau

An explosion of ammonium sulphate and nitrate fertiliser at the Oppau plant in Germany killed 565 people.

Halifax, Canada – 1917

2,900 Tons

CANADA

Halifax

Loaded with highly volatile explosives, the French steamer Mont-Blanc collided with the Norwegian ship Imo. Around 1,950 people were killed and about 9,000 more were injured.

LITTLE BOY

Hiroshima, Japan – 1945

15,000 tons

JAPAN

Hiroshima

The first nuclear bomb used in war. Dropped by the U.S., the bomb killed tens of thousands and flattened the Japanese city of Hiroshima in an instant. powerful was Beirut blast?

George William Herbert, an adjunct professor at the Middlebury Institute of International Studies Center for Nonproliferation Studies and a missile and effects consultant, used two methods to estimate the yield of the explosion. One used visual evidence of the blast itself along with damage assessments. The other calculation was based on the amount of ammonium nitrate reportedly at the source of the explosion.

Both techniques estimate the yield as a few hundred tons of TNT equivalent, with the overlap being 200 to 300, Herbert told Reuters.

Aerial footage shows damage at the blast site in Beirut two days after the explosion. August 6, 2020 | Reuters/Bader-Photography.com

The blast rattled buildings on the Mediterranean island of Cyprus, about 100 miles (160 km) away.

A string of explosions

Seismological data suggests that six blasts preceded the main explosion, the last of them a combustion of fireworks that apparently set off a warehouse full of ammonium nitrate, an Israeli analyst said on Thursday.

The six blasts were at 11-second intervals during the Aug. 4 incident, with the main explosion following the last by around 43 seconds, Boaz Hayoun of Israel’s Tamar Group told Reuters.

Hayoun, a former military engineering officer whose current roles include overseeing safety standards for explosives use in Israel, said his analysis was based on data from seismological sensors stationed across the region.

“I cannot say categorically what caused this, but I can say these blasts were at the same location,” he told Reuters.

Readings from a seismograph obtained by Reuters showing the explosion in Beirut on August 4, 2020. IRIS (Incorporated Research Institutions for Seismology)

Among the sensors cited by Hayoun was an array installed about 70 km (43 miles) off Lebanon’s coast by the international geological project IRIS – which cast doubt on his conclusions.

IRIS said its sensors picked up more than five “small bursts” at intervals of around 11 seconds before the main Beirut explosion, a sequence that continued after the incident.

“I do not believe that they are associated with the large explosion in Beirut,” Jerry Carter, director of IRIS data services, told Reuters.

“They could be from a seismic survey,” he added, referring to geologists carrying out airgun bursts for underwater mapping.

Lebanese officials have blamed the explosion, which killed at least 172 people and left much of the capital in ruins, on a huge stockpile of ammonium nitrate catching fire after being stored unsafely at the port for years.

President Michel Aoun has said investigators would also look into the possibility of “external interference” such as a bomb, as well as negligence or an accident as causes.

Sources:

Research and Information on Accidents database (ARIA); Environmental Emergencies Centre (EEC); NASA; Nuclear Weapons Education Project, Massachusetts Institute of Technology (MIT); and Reuters calculations.

By:

Marco Hernandez, Simon Scarr

Additional reporting by:

Gerry Doyle, Gurman Bhatia, Anand Katakam, Manas Sharma, Prasanta Dutta

Source Reuters

TheSun News

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