Piggybacking on Disaster

Tsunami damage north of Sendai, Japan. Credit: US Navy via Wikimedia Commons.

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Every nation on Earth ought to be spooked by the failures of redundancy in Japan’s Fukushima nuclear power plant. Cooling systems failed, then back-up systems, then back-ups to the back-ups, and—so far—every one of the the jury-rigged fixes.

Clearly, many governments are reassessing risk at their nuclear power plants.

An interesting piece in the Asia Times by Sudha Ramachandran examines India’s response. India has seven nuclear plants with 20 reactors located in the states of Karnataka, Tamil Nadu, Maharashtra, Gujarat, Uttar Pradesh, and Rajasthan. Several  sit on the coast.

Ramachandran writes that Shashikant Dharne, the joint director at the Nuclear Power Corporation, claims Indian nuclear plant structures, systems, and equipment are designed to withstand the maximum possible earthquake at their location. And that quakes and tsunamis have done little damage to nuclear reactors in India.

The Narora plant has not been damaged in the several tremors it has experienced in the past 21 years it has been in operation, including one of 6.3 magnitude. When an earthquake of 6.7 magnitude hit Gujarat in 2001, operations at the Kakrapur plant went on uninterrupted. When the 2004 tsunami battered the Tamil Nadu coast, the Kalpakkam nuclear power plant’s grounds were flooded, and the reactor went through an automatic shutdown process and did not operate for a few days. According to P K Iyengar, former chairman of the [Atomic Energy Commission], the decision to install its electrical systems 17 meters above the ground, prevented damage to the reactor.

Of course, Japan’s reactors weathered many a quake and tsunami for decades too. The problem here is imagining that 21 or 41 years of good performance in any way equates to a guarantee of continued good performance in the future. This is a failure we continually commit, including with regards to climate change.

Ramachandran notes that Indian nuclear experts stress key differences between India and Japan, both in types of reactors and in where they’re sited.

Unlike Japan’s nuclear plants which are located in highly seismic areas (Fukushima is located in Zone 5) most of India’s nuclear plants are situated in the moderately seismic Zone 3. The Narora plant is the only one located in Zone 4. Officials rule out the possibility of an 8.9 magnitude earthquake striking Indian nuclear plants since none of them are located in the highly seismic Himalayan region.

As I wrote yesterday, though, no one expected the subduction zone off Sendai, Japan, capable of a 9.0 quake. We’re relearning what we think we know all the time, and much of that knowledge piggybacks on disasters.

The takeaway lesson here is that what we know now—whether about seismic stress or tsunami heights or nuclear plant redundancy systems—is not all there is to know. The dangerous systems we engineer must also have engineered into them the understanding that we only know some of the risks, not all of them, and maybe never will.

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Truth #1: The chaos is the point.

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SIX TRUTHS

Reclaiming power from those who abuse it often starts with telling the truth. And in "This Is How Authoritarians Get Defeated," MoJo's Monika Bauerlein unpacks six truths to remember during the homestretch of an election where democracy, truth, and decency are on the line.

Truth #1: The chaos is the point.

Truth #2: Team Reality is bigger than it seems.

Truth #3: Facebook owns this.

Truth #4: When we go to work, we're in the fight.

Truth #5: It's about minority rule.

Truth #6: The only thing that can save us is…us.

Please take a moment to see how all these truths add up, because what happens in the weeks and months ahead will reverberate for at least a generation and we better be prepared.

And if you think journalism like Mother Jones'—that calls it like it is, that will never acquiesce to power, that looks where others don't—can help guide us through this historic, high-stakes moment, and you're able to right now, please help us reach our $350,000 goal by October 31 with a donation today. It's all hands on deck for democracy.

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