Drums explode out of silence or rumble like distant earthquakes.

A magnitude for distant earthquakes based on the amplitude of the Lg surface waves.

This was also the most distant earthquake known ever to be felt in Hong Kong.

Seismometers measure faint vibrations in the ground that tell of distant earthquakes.

As with the distant earthquake, those fears are probably exaggerated.

Then they did hear it: a dull, muffled rumble, more like a distant earthquake.

For two years the instruments will record vibrations from nearby and distant earthquakes.

These hydroseisms seem to coincide with major, distant earthquakes.

As a consequence, the first waves of a distant earthquake arrive at an observatory via the Earth's mantle.

The ground under her boots held a residual tremor like the aftermath of a distant earthquake.