A 7.5-magnitude earthquake was reported.

Earthquakes and seismic activity often happen with sudden movements underground with tectonic plates. Seismographs are used by scientists to measure the time, location and strength of an earthquake.

One of the advantages of writing an end-of-week column about horse racing is the ability to let events from the previous weekend percolate into the soil of the game before passing judgment. In this ...

What does “moment magnitude” mean, and how do scientists determine the strength of a rupture in the earth? By Henry Fountain Henry Fountain spent a quarter century covering science for The Times. He ...