How a 'weather bomb' shook the Earth – and why that's not an earthquake
Friday, August 26, 2016 - 07:21
in Earth & Climate
The Earth beneath your feet is "humming" all the time. Typically these vibrations are too faint and low-frequency for your ears to hear. But they can be detected by seismometers, the instruments designed to study the generally more powerful vibrations that emanate from earthquakes.