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Still rose the morn; Security had lull’d
The scatter’d
sons of vice in false repose,
Heav’n of its dread intent no portents gave;
…When, instantaneous, earth’s huge, cumb’rous mass
Heav’d, with strange pang, and deep resounds her groan.
Anon., 1750

EXTRAORDINARY PHENOMENA

The night of January 16, 1750, was clear and calm at Stalbridge in Derbyshire. About 8 p.m., a not unfamiliar sight appeared in the north. A faint aurora sent up its beams for an hour or so before fading; then, about 9 p.m., an 'extraordinary phenomenon' took form in the southern sky. A vast semi-circular arch, like a rainbow, but very much larger and of a vivid red colour, sent up wavering streams almost to the zenith. It was later proved that this appearance had been seen from almost the whole of the British Isles, from as far south as Deal.

FIERY CLOUDS

On the evening of January 23, a fiery mass, described as an aurora borealis, moved very slowly from north to south directly over the city of Cork in Ireland. It was visible for about an hour, “and was tinged with so deep a scarlet, that it looked as if the city was in flames.” At Oxford on the same evening, a deep red light rose slowly in the north-east, sending out streamers of yellow and red light until it formed an 'iris' round the zenith. Then a second fiery cloud, larger than the first, rose to the apex of the sky. Now the phenomenon was directly above Oxford, throwing out rays of multi-coloured light, and onlookers acclaimed it 'a most glorious appearance'.

THE FIRST EARTHQUAKE

On Thursday, February 8, about noon, the first earthquake of the year struck. It shook London. People felt the chairs in which they sat shaking, and heard crockery rattling on their shelves. The lawyers in Westminster Hall were alarmed, and in Grosvenor Square residents ran out of their houses. In Southwark, a slaughterhouse collapsed, and a chimney fell in Leadenhall Street. It seemed that the tremor was confined to the London area; it was 'just perceived' at Richmond in Surrey and Bromley in Kent, and not felt at all at Barnet, Deal, and Canterbury.
The
Gentleman's Magazine, (founded by Edward Cave, alias 'Sylvanus Urban', in 1731) which was interested in everything, told its readers that there were three kinds of earthquake; the 'Inclination', which was a vibration from side to side, the 'Pulsation', up and down, and the 'Tremor', “when it shakes and quivers every way like a flame.” Scholars were agreed that the origins of earthquakes were to be found in the underground voids with which the earth was believed to be honeycombed, especially in mountainous regions; but whether it was the surges of air, water or fire within these caverns that were the actual cause of the shock was still disputed.

EARTHQUAKE OF 1580

The earthquake, minor though it was, alarmed London. The last significant tremor to shake the capital had been 170 years earlier, in 1580. That had been a much more serious business. The shock had been felt in France, Belgium, and Holland. A boy and girl had been killed by falling masonry in London. Part of Dover cliffs had collapsed into the sea. However, Londoners were not heeding a shock that was beyond living memory; it was their recent tremor that worried them. The Gentleman's Magazine described for them an earthquake of 1692 in Sicily, 'the most dreadful in all history', which 'swallowed up...an incredible number of villages, and sixty thousand people'. The clergy began to prepare their sermons. A poet of Norwich fired the first shot;

“Britain! Attend the warning voice,
And dare be deaf no more!”

SIGHTS IN THE NIGHT

On February 27, the night sky was again strangely illuminated. That evening, from Salisbury, an arch of light extended across the horizon, 'wavering like flames issuing from fire.' After a short time it disappeared, leaving the sky glowing with a faint eerie light.

AR 1750
‘The lights in the air’ seen from Stalbrige in Derbyshire, 16 January 1750. from a drawing by ’S.B.’ in the Gentleman’s Magazine.

THE SECOND EARTHQUAKE

On Tuesday, March 8, a month after the London earthquake, at about one o'clock in the morning, wakeful persons in the city thought to feel another quaver. For about half an hour after five o'clock, the sky flickered with continual lightning. Then this ceased, and a minute or two later, the earthquake came.

The shock was more violent than that of February 8. Sleepers were awakened by it, and some were so alarmed that they ran from their houses almost naked. Those in the open spaces of the city felt the ground move 'very perceptibly'. Dogs howled. Church bells clanged. Crockery was thrown from household shelves; a lady of Piccadilly, a connoisseur of old china, had her collection instantly ruined. Several chimneys fell, and the earthquake claimed a victim, a maid in Charterhouse Square, who was thrown out of bed and broke her arm.

WARNINGS FROM GOD

Despite the minor damage, Londoners were worried. One earthquake was remarkable, but two earthquakes in a month was unprecedented. Were they a warning from God? The second tremor had been more violent. Was it another warning, delivered with more force? Thomas Sherlock, the Bishop of London, was sure of it. In a letter to the clergy and inhabitants of London, he called on them to “give attention to all the warnings which God in his mercy affords to a sinful people...by two great shocks of an Earthquake”. He pointed out that the shocks were confined to London and its environs, and were therefore 'immediately directed' at that city, and sneered at the 'little philosophers', who saw earthquakes only as natural phenomena. The bishop indicated some of the modern manifestations that must have aroused divine displeasure: vast numbers of books which either disputed or ridiculed “the great truths of religion”, the swearing and blasphemy constantly heard on the streets of London, and 'the unnatural lewdness', for which God had destroyed Sodom, which could 'hardly be mentioned without offending chaste ears'.

AIRQUAKES

One 'little philosopher', however, sought to reassure Londoners that the second shock had not been an earthquake at all, but an 'airquake', caused by an 'explosion of combustible matter in the atmosphere'. He pointed out that the sound before the shock was more like distant thunder than a subterranean explosion. Windows and beds had been shaken sideways, and, just before the shock, a 'vast ball of fire' had been seen in the sky to the west of London. The warmth and dryness of the spring, and probably the smoke from the coal-fires of the city, had increased the accumulation of sulphurous exhalations, and thence of meteors, which he believed to be composed of 'inflammable vapours'. An airquake was no more to be feared than a clap of thunder; it might throw down a few tottery structures, but also brought benefit by purifying the atmosphere. Another philosopher called the airquake notion 'whimsical'. The warm season was not confined to London, yet no-one else had experienced a quake. As for the ball of fire, another observer claimed that there was “a correspondence between the subterraneous air and the atmosphere. It is probable that...great concussions of the air do often, if not always, owe their origin to...exhalations lifting from below.” While the philosophers disputed, clergymen insisted that “Earthquakes are under the divine management, and are made use of by God to fulfil his pleasure”.
The poets also had their say. One, musing in a ruined abbey during a thunderstorm, asked rhetorically;

Again – another – a repeated shock...
Where fly the threaten'd wretches? Where? where,
now?
For wish'd relief? - To suppliant penitence?
...Ah! no. To plays, to sports!
To midnight revels!

But it seemed that the Supreme Being's displeasure was not only with sinful London.

FURTHER SHOCKS

On Sunday, March 18, at about 6 pm, Portsmouth and the Isle of Wight were shaken, and, as they trembled, the air vibrated to a noise like the firing of great guns. The shock was even felt, though faintly, at Bath.

On Monday, April 2, at about 10 pm, Liverpool and an area about 40 miles round vibrated to 'a smart shock of an earthquake' for two or three seconds. An apprehensive resident rushed outside, and saw, for fifteen minutes, a curious appearance in the heavens; “multitudes of blood red rays” converging from all parts of the sky to one dark point.

OMENS OF DISASTER

Meanwhile, in London, a 'crazy lifeguardman' (Trooper Mitchell, of Lord Delaware's regiment of Life Guards) had joined with the Bishop of London in predicting disaster. The first two shocks had been four weeks apart; in four weeks from the second, there would be a third, and more disastrous earthquake. Some citizens, to the annoyance of the clergy, professed to be careless about the business, and sent each other cards: “I invite your ladyship to the Earthquake on ----- next'. Others were not so sure. The roads were thronged with vast numbers of people leaving the city. Some went to Windsor, or even further, and waited in the fields, or lay in boats all night. Many fashionable persons, wracked by 'superstitious fears, or their guilty conscience', waited in their coaches till dawn, expecting then to hear of the destruction of wicked London.
Nothing happened.

A REMARKABLE SUMMER

London remained unscathed and unshaken, but earthquakes continued, as did strange sights in the sky. On April 20, between 8 and 9 pm, an auroral arch rose in the east-north-east at Biddeford and formed a 'scarlet cone' near the zenith. After a few minutes the cone turned white and faded away. On May 15 (N.S.), in the morning, an area 20 miles round Wimbourn in Dorset was shaken by one violent shock, accompanied by a sound like the thunder of artillery. The summer was also remarkable for its thunderstorms. On July 11, as if to offer the clergy a substitute for an earthquake, the streets of London were flooded in a violent storm of thunder, lightning, rain and hail. Some hailstones were three inches round, and flat, like ice cakes. In mid-July, England was “shifted into the Torrid Zone”. Three days of great heat ripened the corn before its time; several labourers died in the fields, and many burdened horses fell dead in the roads.

SUBTERRANEAN AIR

On Thursday, August 23, on a fine bright morning, the windows of Nottinghamshire rattled in another earthquake. It was also felt in Lincolnshire. Ten days earlier, another aurora had been seen, very red, whose rays met at the zenith; a description suspiciously reminiscent of the phenomenon seen at Liverpool on April 2. In Lincolnshire, the earthquake was described by a Gentleman's Magazine correspondent, 'E.A.', who was shaken by it as he lay awake in bed, as “a sound from the earth, as of a rushing mighty wind, and it shook all the house with every thing that was therein.” E.A. disdained those explanations involving sulphur, explosions, or electrical fire, “which our modern philosophers make use of on all occasions, in explaining all the phenomena that appear in heavens above, or are felt in the earth beneath”. He believed that, as the shock was accompanied by a sound like rushing wind, it must have actually been caused by such a wind, which burst out of the earth somewhere in the 'dreary fens' of Lincolnshire. The cause of the outburst was the rarifaction of subterranean air by the heat of the season, for “such a dry and hot summer has not been known in the memory of man.”

THE LAST EARTHQUAKE

The last, and strongest, English earthquake of 1750 shook Northamptonshire and several other counties, just after noon on September 30. It was 'much stronger than that felt in London”, and lasted nearly a minute. Part of an old wall in Northampton was thrown down, a lady in Kelmarsh was tossed from her chair, and all over the shaken district people ran into the street. At Leicester, a rushing noise was heard, and the houses heaved up and down. The convulsion caused terror, but passed off with only the loss of some slates, chimney parts, and a few items of glassware. Near Leicester, an unfortunate child was shaken out of a chair into a fire, and was 'somewhat burnt'.

DIVINE WRATH

Those anticipating divine wrath were somewhat disappointed by the earthquakes of 1750. However, the well-known theologian William Whiston (who had already one failed prediction to his name; the Earth was not destroyed by a comet on 16 October 1736) had not given up what might be described as hope. London's 'enormous wickedness' had already received two divine warnings. Thus he was “fully satisfied' that there would soon be a great earthquake, “and a tenth part of London will fall; and that, in this earthquake, shall be slain ten thousand names of men...and that the rest of its inhabitants...will be so happily affrighted at so terrible a judgement, as to give glory to the god of heaven.”

Note: unless otherwise stated, all dates are O.S. (Old Style – the Julian calendar)

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THE YEAR OF EARTHQUAKES

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