water out of the way and create this shoke wave that sent ripples literally across the globe. in california, many beaches were closed as a precaution and that s more than 5000 miles from where the volcano john donnison, bbc news. david tappin is a marine geologist at the british geological survey. he said this was not the first time that the volcano had erupted. at this location, there have been about six volcanoes along the tonga margin. they are intermittently active. 0ne margin. they are intermittently active. one in particular is one of the most active and was erupting in 2019, 2014, and 1912. at the eruption has not been so vigorous or dynamic, and there have been various phases of that, but this particular