When a 7.4-magnitude earthquake hit Taiwan’s eastern coast on April 3, the first concern involved the risk to people and property. Here, the news was not as dire as initially feared — only nine people have been reported killed as of Wednesday evening, along with hundreds of injuries. Considering that Wednesday’s quake was the strongest in Taiwan in 25 years — and that earthquakes of similar strength have killed tens of thousands of people or more in other countries — this could have been much worse.

Taiwan was largely able to withstand such a powerful quake because the island has taken earthquake preparation seriously, strengthening its building codes after past disasters and drilling its population in how to respond. The newest buildings tended to fare best — the 1,670-foot Taipei 101, the island’s tallest building and designed to dampen shaking in a quake, barely moved.

There was one other way in which Taiwan — and the world — avoided a worse outcome from the earthquake: the island’s all-important semiconductor manufacturing industry seemed to emerge largely intact. That’s good news — but it’s also a reminder of how fragile some of the most important nodes of the global economy remain.

The world’s computers can’t run without Taiwan

To say that Taiwan is important to the global tech industry is like saying oxygen is important to breathing. Taiwan as a whole is responsible for making 80 to 90 percent of the world’s most advanced computer chips — ones for which there is no current substitute. Taiwan’s TSMC makes up........

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