Qualla: 1668 Shandong Earthquake

1668 Shandong Earthquake: Introduction

Sat, 14 Mar 2026 00:00:00 GMT

On the morning of July 25, 1668, the ground between Beijing and Shanghai did something it had not done in more than 150 years. It broke. The Yishu Fault, a segment of the ancient Tan-Lu Fault Zone that had formed during the Mesozoic era, ruptured along its length with an estimated magnitude of 8.5. In the span of minutes, what had been a seismically quiet stretch of Shandong Province became the site of the largest recorded earthquake in the history of eastern China.

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1668 Shandong Earthquake: The Ground Splits Open

Sat, 14 Mar 2026 00:00:00 GMT

The rupture tore through the earth along a near-vertical, north-south striking fault. The motion was primarily strike-slip, with the ground on either side of the fault sliding horizontally past each other. In Ju County, the destruction was absolute: more than 20,000 people died a...

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1668 Shandong Earthquake: Black Water from the Earth

Sat, 14 Mar 2026 00:00:00 GMT

In Linyi, the devastation was equally catastrophic. Not a single home, city wall, or temple survived intact. Over 6,900 people perished. Witnesses reported black water emerging from fissures, a phenomenon likely caused by the violent mixing of subsurface sediments and groundwater...

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1668 Shandong Earthquake: An Emperor Responds

Sat, 14 Mar 2026 00:00:00 GMT

The earthquake struck during the reign of the Kangxi Emperor, one of the longest-ruling and most capable emperors of the Qing dynasty. He was only fourteen years old at the time, still in the early years of what would become a sixty-one-year reign. The young emperor ordered his m...

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1668 Shandong Earthquake: A Fault That Waits

Sat, 14 Mar 2026 00:00:00 GMT

The Tan-Lu Fault Zone, which produced the 1668 catastrophe, stretches for thousands of kilometers through eastern China. It formed during the Mesozoic era and has a slip rate estimated at less than a few millimeters per year, making it a slow-moving but powerful system. Centuries...

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