The Search for What Shook the Earth for Nine Days Straight

The difference with the Greenlandic pandemonium is that, luckily, it caused minimal damage and zero casualties. Instead, Earth presented scientists with a riddle — and they went all-in to solve it, simply to satiate their curiosity. “It’s just cool to say: I see a weird signal — what is it?” said Jackie Caplan-Auerbach(opens a new tab), a seismologist and geophysicist at Western Washington University who was not involved with the new study. Sometimes, Hicks said, “this kind of science is the most fun.”