Time is indicated at the left end of the lines in Universal (or Greenwich) Time. When an earthquake occurs, the seismogram will show ground motion fluctuations that typically last from tens of seconds ...
(Reuters) - A magnitude 6.7 earthquake struck off the coast of Kokopo, Papua New Guinea on Friday, the U.S. Geological Survey said. The quake was at a depth of 52 km (32 miles), USGS added.
Many Californians awoke at 3:19 a.m. to their phones sounding in a test of the earthquake alert phone warning system. It was jolting, so to speak — especially after loud alerts on Wednesday for ...
No injuries or damage were reported. As seismologists review available data, they may revise the earthquakes’ reported magnitudes. Additional information collected may also prompt U.S.G.S ...
Access our Bay Area Quake Tracker, the latest earthquake stories, extensive quake prep checklists, videos and many other disaster preparedness resources all in one place: NBCBAYAREA.COM/QUAKES ...