It depends on the orientation of the subduction fault. Generally the coastal plate rises over the oceanic plate and is lifted and compressed over time. When the fault ruptures, the ocean floor all the way from the fault to the coast, and even a little bit inland, drops quite a bit (6-15 ft) lowering the water level and it makes the ocean recede. Then the displaced water from edge of the extending coastal plate follows. In 2011 Japan the edge of the coastal plate moved eastwards 150 ft across hundreds of miles.
Those on the ocean side of the plate boundary usually don't get the warnings of receding water nor ground shaking due to distance. Just a quiet day on some unlisted epstein island until blammo the whole ocean rises up to reaffirm that no matter what media tells us the laws of nature are still the boss.
It depends on the orientation of the subduction fault. Generally the coastal plate rises over the oceanic plate and is lifted and compressed over time. When the fault ruptures, the ocean floor all the way from the fault to the coast, and even a little bit inland, drops quite a bit (6-15 ft) lowering the water level and it makes the ocean recede. Then the displaced water from edge of the extending coastal plate follows. In 2011 Japan the edge of the coastal plate moved eastwards 150 ft across hundreds of miles.
Those on the ocean side of the plate boundary usually don't get the warnings of receding water nor ground shaking due to distance. Just a quiet day on some unlisted epstein island until blammo the whole ocean rises up to reaffirm that no matter what media tells us the laws of nature are still the boss.