A major, 7.0-magnitude earthquake struck in the South Pacific Ocean on Monday, according to the United States Geological Survey. The quake prompted a brief “Tsunami Threat” for Tonga. Preliminary ...
A tremor of 2.5 or less usually cannot be felt but can be detected by instruments. Quakes of up to five are felt and cause minor damage. The Myanmar earthquake at 7.7 is classified as major and ...