Tall structures that fail rarely just tip over like a tree. Once they become significantly non-vertical, they usually start bending ~2/3 of the way down because they’re not strong enough to withstand the weight of the upper parts of the building along a different axis than they are designed for. So buildings farther away than 1/2 of the height are probably not in that much danger of having this collapse on them. Of course the extra rigidity built in because this is in an earthquake zone might modify this.
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