Greece’s chief seismologist says that while earthquake frequency around Santorini has slightly decreased, the situation remains unpredictable for the coming weeks ...

Now a network of seismographs spans the country, measuring the initial P-waves when an earthquake strikes. Agency computers collate the data and almost instantaneously issue estimates of its size ...

Quakes of that size are often not felt by people, but register on a seismograph. As of Monday afternoon, no one had reported they felt the earthquake, the the U.S. Geological Survey said.

He based his estimate on recordings made by BC’s Weston Observatory—of which he is the director—of football games, earthquakes, and a variety of other seismic events recorded by seismographs, ...

A 4.1 magnitude earthquake was detected at 5:02 a.m. PST roughly 44 kilometres northeast of Victoria, B.C., and 75 kilometres ...