In most of my personal experiences and videos seen online, lights seem to go out during strong earthquakes.
Why? I can grab the cord of a lamp and move it around without the lamp turning off, and I don’t think it has something to do with the power company. During earthquakes, some of my friends who live in the same zone or city as me do not experience lights going out.
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Probably the overhead power lines shorting together somewhere between you and the power plant, then the recloser resets the power and power comes back on. Could be nearby trees or other debris falling onto overhead lines causing shorts.
In my area, the diesel generators have seismic sensors that shut the generator down when a vibration above a certain level occurs. They take hours to restart though since these are the steam base load generators.
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