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 ...

Since the Napa County earthquake on Aug. 24 of this year, the Napa Valley Register has continually made reference to this event as "a 6.0 magnitude earthquake." I would have thought the newspaper ...

Earthquakes are becoming increasingly frequent. On Sunday morning, four earthquakes struck parts of India, Myanmar, and Tajikistan within just one hour, sending tremors across central and South Asia.

Kerry Breen is a news editor at CBSNews.com. A graduate of New York University's Arthur L. Carter School of Journalism, she previously worked at NBC News' TODAY Digital. She covers current events, ...

Just how strong was Wednesday’s earthquake anyhow? The quake that struck about 11 miles south southwest of Mifflintown in Juniata County measured 3.4 on the Richter scale, with weak-to-light shaking ...

New Delhi: A massive earthquake struck Delhi on Monday morning (February 17) at around 5:36 am, with tremors felt in Noida and Gurgaon. As per the National Centre of Seismology, a 4.0 magnitude ...

The Seattle earthquake registered 6.8 on the … well, not on the Richter scale, which the New York Times reported has been displaced. Is the Richter scale obsolete, and what is used instead? While the ...

The earthquake that rattled Californians on Friday night measured a 7.1 magnitude, which doesn’t sound much worse than the 6.4-magnitude quake that struck a day earlier. But it was. The small ...