Qualla: 1647 Santiago Earthquake

1647 Santiago Earthquake: Introduction

Sun, 21 Jun 2026 00:00:00 GMT

Photo credit Kaklen, CC BY-SA 3.0. It was nearly half past ten on the night of 13 May 1647, and Santiago was asleep. The colonial capital of the Captaincy General of Chile was a modest grid of adobe and stone, a Spanish outpost crouched between the coastal range and the Andes. Then the ground convulsed. In a matter of moments, almost every building in the city came down. The shaking reached the maximum intensity the Mercalli scale records - level XI, Extreme - and when the dust settled over the rubble, roughly a thousand people lay dead. Survivors stumbled into the streets of a city that had effectively ceased to exist.

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Image: Kaklen | CC BY-SA 3.0

1647 Santiago Earthquake: A Country Built on a Fault

Sun, 21 Jun 2026 00:00:00 GMT

Photo credit Mikenorton, CC BY-SA 3.0. Chile sits on one of the most violent seams on Earth. Just off its coast, the Nazca plate grinds beneath the South American plate along a convergent boundary, and the strain it stores is released in some of the largest earthquakes the planet produces. The 1647 disaster was felt a...

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Image: Mikenorton | CC BY-SA 3.0

1647 Santiago Earthquake: The Crucifix and the Crown of Thorns

Sun, 21 Jun 2026 00:00:00 GMT

Photo credit Mikenorton, CC BY-SA 3.0. Inside the ruined Iglesia San Agustín, something survived that the city would never forget. A carved figure of Christ, the Cristo de Mayo, was pulled intact from the debris - all except its crown of thorns, which had slipped down to rest against the figure's neck. What struck the...

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Image: Mikenorton | CC BY-SA 3.0

1647 Santiago Earthquake: The Sickness After the Shaking

Sun, 21 Jun 2026 00:00:00 GMT

Photo credit Mikenorton, CC BY-SA 3.0. The earthquake was only the first blow. Days later, heavy rains swept the broken city, and water pooling in the rubble fouled what little sanitation remained. Out of that misery came an epidemic the survivors called chabalongo - the period's name for typhus. Over the following we...

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Image: Mikenorton | CC BY-SA 3.0

1647 Santiago Earthquake: To Stay and Rebuild

Sun, 21 Jun 2026 00:00:00 GMT

Photo credit Mikenorton, CC BY-SA 3.0. So thorough was the destruction that the colonial government debated abandoning the site entirely, moving the capital a few kilometers north to the area now called Quillota. In the end they chose to stay and rebuild Santiago where it stood, on the same fault-shadowed ground. Bish...

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Image: Mikenorton | CC BY-SA 3.0