‘Sonic boom’ felt in Lancashire and RAF anti-submarine plane takes to skies

A “sonic boom” was heard in Lancashire, as well as Merseyside, Greater Manchester and Cheshire amid growing tensions over a possible Russian invasion of Ukraine

An RAF P-8A Poseidon and Typhoon
An RAF P-8A Poseidon and Typhoon

A sonic boom is reported to have been felt at the time an RAF anti-submarine surveillance plane was spotted flying over Britain.

The British Geological Survey said it had received numerous reports of occurrences consistent with those of a sonic origin in Lancashire, as well as Merseyside, Greater Manchester and Cheshire at roughly 11am.

It said: “Data from BGS seismic networks were examined and signals consistent with a possible sonic origin were recorded at that time.

“British Aerospace confirmed they did have aircraft airborne at the time and two RAF aircraft but cannot confirm at this time if any had gone supersonic.”

The Boeing Poseidon MRA1 (P-8A) flew over Guernsey and the English Channel on Tuesday morning – having taken off from Inverness in Scotland, PlymouthLive reports.

It was also seen over South Devon and the Torbay area before heading towards Wales.

For live updates on the situation in Ukraine, see our blog here

A Russian tank leaving for Russia after joint exercises of the armed forces of Russia and Belarus


Russian Defense Ministry/AFP via)

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The flight comes amid high geopolitical tensions in Europe; centered on the Ukraine/Russia border with fears of an ‘imminent’ invasion being ordered by the Kremlin.

The plane is a multi-role maritime patrol craft armed with sensors and weapons systems for anti-submarine warfare.

It is also used in surveillance and search and rescue missions.

Flight trackers showed it first flew over South Devon, then circled Guernsey, then headed back north.

There is also significant RAF activity in Wales.

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It comes amid fear Europe is just hours away from all-out war in Ukraine.

Russia has more than 100,000 troops massed near the border with its eastern European neighbours.

Kremlin political leaders deny Western accusations that it is planning to invade, but say it could take unspecified “military-technical” action unless a range of demands are met, including barring Kyiv from ever joining the NATO alliance.

But American intelligence agencies predicted Kremlin chiefs will order an attack on Ukraine at 3am local time tomorrow.

Moscow troops could target Kyiv’s military and government command and control centers with a barrage of air strikes before tanks roll over the border.

At the same time Russian amphibious warships could storm Ukraine’s southern coastline.

UK Foreign Secretary Liz Truss warned a Russian invasion ‘would not stop at Ukraine’.

The ominous news arrives hours after Russia pulled back forces from the Ukraine border.

Some Kremlin troops in military districts adjacent to their eastern European neighbors are returning to bases after completing drills, Russia’s defense ministry was quoted as saying today.

Russian President Vladimir Putin attends a meeting with German Chancellor in the Kremlin in Moscow on Tuesday



It’s a move that could de-escalate frictions between Moscow and the West.

But large-scale drills across the country continue.

An estimated 126,000 Russian troops were stationed on Ukraine’s eastern flank, 80,000 Russian and Belarus soldiers to the north and Kremlin warships to the south, packed with special forces and marines.

While 30,000 separatist troops were dug in among Moscow special forces on a 250 mile frontier of trenches in the contested Donbas region.

Attack helicopters were brought into position over the weekend, joining artillery and tanks already waiting on the frontline.

According to the Royal Air Force website, Boeing’s Poseidon MRA1 (P-8A) is a multi-role maritime patrol aircraft.

Russian armed forces artillery units conduct combat exercises in the Opuk



It is equipped with sensors and weapons systems for anti-submarine warfare, as well as surveillance and search and rescue missions.

The Poseidon’s comprehensive mission system features an APY-10 radar with modes for high-resolution mapping, an acoustic sensor system, including passive and multi-static sonobuoys, electro-optical/IR turret and electronic support measures (ESM).

This equipment delivers comprehensive search and tracking capability, while the aircraft’s weapons system includes torpedoes for engaging sub-surface targets.

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George Holan

George Holan is chief editor at Plainsmen Post and has articles published in many notable publications in the last decade.

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