Ash, Then Thirty-Six Million

A hundred and fifty years ago, Tokyo was still Edo—a city of low wooden structures, roughly a million inhabitants, built according to a logic of impermanence that turned out to be more prescient than anyone intended. What it became in the following century and a half is one of the more improbable transformations in modern urban history, and it’s a story built almost entirely on catastrophe.

The Kanto earthquake of September 1923 is the central trauma. Magnitude 7.9, followed by fires that burned for days afterward, and when the smoke cleared more than 100,000 people were dead. Of the 2.2 million residents of Tokyo prefecture, 1.5 million were homeless. Nearly half of all residential buildings were gone. The city that had spent decades modernizing—shaking off the legacy of Edo, building something that could stand alongside European capitals—was essentially erased within 48 hours.

Then it was rebuilt. Then the firebombings of 1945 reduced large sections of it to ash again. Then it was rebuilt again. The Tokyo that exists now—over 36 million people in the greater metropolitan area, still visibly expanding outward—is a city that has died and reconstituted itself multiple times within the span of a single long human life.

The documentary Tokyo: Rising from the Ashes, produced by ARTE, traces that arc from 1868 to the present. Tokyo tends to appear in contemporary writing as a proof-of-concept for the future city: the density, the transit efficiency, the coexistence of ancient neighborhood texture and radical modernity. What this film adds is the ground beneath all of that. The city sits on one of the most seismically active zones on the planet, and its relationship to that fact runs through its architecture, its urban planning, and its collective memory in ways that aren’t immediately visible from the surface. The question isn’t whether another major earthquake will come. It’s whether the city will recognize itself afterward, and what it will decide to rebuild.