Scale of damage revealed after 4.4-magnitude tremor hit Italian city - Eleven people were taken to hospital including one who ...
A light, 4.1-magnitude earthquake struck in Southern California on Sunday, according to the United States Geological Survey.
Additionally, the way earthquakes are measured on a logarithmic scale, meaning that what appears to be a small increase in magnitude is really a much more significant one. As a result, what might ...
Magnitude measures the energy released at the source of the earthquake, the U.S. Geological Survey says. It replaces the old Richter scale. Quakes between 2.5 and 5.4 magnitude are often felt but ...