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The quake was the largest in the Baja California and Southern California area since 1992, the USGS reported.
The '92 quake, which struck in Landers, California, triggered an earthquake the next day in Nevada and another quake 11 days later in Southern California, according to USGS seismologist Lucy Jones. Both were 5.7-magnitude quakes.
What effect did it have on Yellowstone? It showed up on the seismographs?
Of course it did, p-waves and s-waves travel around the entire globe.
The vertical LR ground motion was about 3.8 millimeters peak-to-peak, at the
underground vault near Leonard. This allowed the OGS to calculate an MW type
magnitude of 7.8.
It might seem that if the earth's surface in Oklahoma moved up and down four
millimeters, that buildings would be damaged. There would be damage if the
movement was rapid. However, the movement was like slowly lifting the earth
over a minute or so, then lowering it as slowly. Such slow motion will not
effect anything but the detection sensor of a very broadband seismometer.
Seems like things should be better now that you figured this one out.
Originally posted by citizenihilist
Looks like someone doesn't like someone else disagreeing in a non-polite way.