The first text arrived when I landed in Hong Kong. A friend asking if I was okay after the earthquake. I replied that I was fine and that the earthquake she meant had been a 5.8 two days ago, a minor tremor by the standards of a country where significant seismic events are not uncommon, and that I had felt nothing. Then, in the five minutes it took to clear customs, forty more messages arrived. Calls from an unknown number that rang and rang and when I ignored it rang again. An email from my mother that said please call me as soon as you can and contained the specific formulation of a message written by someone who does not want to say the thing they need to say in a text.
I switched on mobile data. The news loaded. The earthquake that had struck the Tohoku coast of northeastern Japan at 2:46 in the afternoon on the eleventh of March 2011 had a magnitude of 9.0, which on the logarithmic scale used to measure seismic energy means not slightly more powerful than an 8.0 but ten times more powerful. The tsunami it generated had reached the coast within thirty minutes of the earthquake, travelling inland across the flat agricultural land of the Tohoku plain at speeds of up to fifty kilometres per hour, overtopping seawalls built to a design specification that turned out to be based on historical tsunami records that did not include a wave of this size. The walls were built to the wrong number. The wave was larger than the number.
I replied that I was fine and that the earthquake she meant had been a 5.8 two days ago, a minor tremor by the standards...
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