The Philosophy of Earthquakes, Natural and Religious

In Short

This curious volume captures the collision of Enlightenment science and religious tradition in 1750 London. Following two mild earthquakes that rattled the city without causing destruction, the author presents a dual argument: first, that these tremors are caused not by subterranean fires, but by the recently discovered phenomenon of electricity; and second, that they serve as deliberate, divine warnings to a society lost in luxury and moral laxity. Part scientific inquiry and part sermon, the work offers a vivid window into the intellectual anxieties of the Georgian era.

The Story

The narrative begins in the spring of 1750, a time when London is unnerved by two back-to-back seismic shocks. These events, though mild, provoke a city-wide panic that quickly gives way to curiosity and, soon after, a return to business as usual. The author, a physician and clergyman, finds this collective apathy alarming. He frames the book as both a scientific report to the Royal Society and a pastoral address to his congregation, attempting to reconcile the "natural" cause of the shaking with its "theological" purpose.

He begins his argument by systematically dismantling the prevailing "vulgar notion" that earthquakes are the result of underground caverns collapsing or pockets of sulfur igniting. He points to his own travels in deep coal mines and the lack of seismic evidence—such as fissures or ruined springs—to argue that the earth is not a hollow, combustible shell. Instead, he turns to the burgeoning science of electricity. Having observed the "snap" and "shock" of electrical experiments using glass globes and iron wires, he proposes that the earth itself, when dry and properly electrified by atmospheric conditions, discharges a massive, undulatory vibration. He maps the specific path of the 1750 tremors, noting how they seem to follow riverbeds and damp soil, much like an electrical current seeking a conductor.

Having addressed the "material cause," he shifts his focus to the "moral use." He rejects the idea that these events are mere accidents of nature. To him, the fact that the earthquakes shook the city twice yet caused no loss of life is not a coincidence, but a calculated act of mercy—a "warning" from the Creator. He contrasts this with the devastating, historical earthquakes that leveled ancient cities in Asia Minor, where tens of thousands perished. He argues that because the tremors specifically targeted London—a "nursery of wealth, luxury, and of all the evils naturally flowing therefrom"—the event must be interpreted as a divine judgment.

The conclusion is a plea for repentance. He observes that even after the shocks, the populace returned to their "public meetings of folly," their gaming, and their disregard for the Sabbath. He insists that if the physical cause is electricity, then the spiritual cause is the moral decay of the nation. He urges his readers not to fear the tremor beneath their feet so much as they should fear their own drift away from a "rational, noble" faith. The book ends by situating these events within a larger, providential design, where even the "ethereal fire" of electricity is merely a tool in the hands of the "sovereign architect," intended to remind humanity of its mortality and its need for a higher, spiritual focus.

How It Unfolds

The alarming event The text opens with the author addressing the recent, unsettling tremors that shook London, noting the strange mix of fear and curiosity they generated among the public. He establishes the dual nature of his inquiry: the need to understand the physical mechanism and the urgency of acknowledging the divine warning.

The critique of common theories He dismisses the popular belief in subterranean caverns and underground fires, citing his own experiences in mines and the lack of geological evidence. By showing that mines remain stable despite the tremors, he clears the way for his own revolutionary hypothesis.

The electrical hypothesis Drawing on the era's fascination with static electricity, he proposes that the earth acts as an electrified body. He explains how dry weather prepares the surface for a massive "snap," likening the earth’s vibration to the shock felt by a person touching an electrified conductor.

The geography of the shock He tracks the specific path of the 1750 tremors through the English countryside, noting how rivers and damp soil serve as conduits for the electrical discharge. He uses reports from witnesses and observers to show how the intensity of the shock varied based on the solidity of buildings and the nature of the terrain.

The call to reflection The focus shifts from the laboratory to the pulpit, where he interprets the earthquake as a "divine judgment." He calls for the citizens of London to abandon their pride and luxury, using the lack of casualties as proof of a merciful, yet warning, Providence.

The People

The book is driven by the perspective of William Stukeley, a man who exists firmly in two worlds. As a physician and Fellow of the Royal Society, he is a rationalist who wants to understand the "second causes" of nature; as a Rector, he is a moralist who views the physical world as a mirror of the spiritual one. His primary obstacle is the "vulgar" public—the people of London who, in his view, feel a momentary fright but quickly return to their "morning rendezvouzes" and "mid-night assemblies," unable to grasp the significance of the world shaking beneath them.

He frequently cites figures like Dr. Hales, a real-world contemporary whose observations on atmospheric conditions and lightning support his electrical theory. He also looks back to historical figures like Tiberius, the Roman emperor, whose coins and monuments serve as evidence of ancient, devastating earthquakes. Throughout the text, the "people of London" act as a collective character—a fickle, luxurious, and inattentive audience that serves as the object of his scientific diagnosis and his pastoral scolding. By the end, he hopes to change them from passive observers of a spectacle into active participants in a moral reformation.

In Its Own Voice

"When so great and unusual a phenomenon, as an earthquake, and that repeated, happens among us; it will naturally excite a serious reflection in everyone that is capable of thinking."

The author sets the stage for his inquiry by suggesting that the earthquake acts as a catalyst for intellectual and spiritual examination.

"I wish my intention, in the compliance, may any ways prove successful; to show, how vain, and unmeaning, are all our philosophical inquiries, when destitute of their true view; to lead us into the more engaging paths of religion."

He argues that scientific discovery is ultimately hollow if it does not lead the investigator toward a greater understanding of the divine.

"And of all the great and public calamities, which affect us mortals, earthquakes claim the first title to the name of warnings and judgments."

This encapsulates his conviction that seismic activity is not mere geology, but a direct communication from the Creator to a guilty populace.

What It's Really About

At its core, this work explores the tension between natural philosophy and revealed religion. It asks whether we can live in an age of scientific inquiry—where electricity is no longer a miracle but a measurable force—without losing our sense of awe and moral responsibility. The author argues that the more we learn about the "material causes" of the universe, the more evidence we should find for a "sovereign architect." It is an inquiry into whether modern, rational humans are capable of interpreting physical phenomena as moral lessons, or if our fascination with the mechanics of the world has made us deaf to the "thunder of his power."

Why Read It Today

Readers interested in the history of science or the evolution of religious thought will find this a fascinating, if sometimes challenging, read. Stukeley’s prose is that of an educated, 18th-century gentleman—precise, slightly formal, and deeply earnest. The modern reader must be prepared for the period’s specific worldview, where the "Noachian deluge" is treated as scientific fact and the moral state of London is linked directly to the movement of tectonic plates.

What stays with you is not necessarily the accuracy of his electrical theory, but the sheer ambition of the attempt to synthesize a new, budding science with ancient, static faith. It captures a moment when the world felt newly dangerous and newly explainable. If you can appreciate the beauty of a mind trying to reconcile a shaking floor with an unshakable theology, you will find this work rewarding. It is a slow, thoughtful walk through a vanished intellectual landscape, offering a glimpse into how people once tried to find meaning in the chaos of a trembling world. The book demands patience with its archaic sentence structures and long digressions, but it rewards the curious with a portrait of a man trying to keep his footing while the ground, quite literally, moves.