The tremor's epicenter was one mile north of Piedmont, about 13 miles (21 kilometers) east of San Francisco on the Hayward Fault.
Coffee was not needed to wake up news reporters in the San Francisco Bay Area, since an earthquake struck during this morning's live broadcasts.
A mysterious group of delicately balanced rocks that should not exist has led to a revelation about the San Andreas Fault.
A small quake in San Francisco on Tuesday reminds that a much more damaging quake is due any day now.
While Mt. Everest moved, Kathmandu shifted south by over 1.5 meters and was uplifted by nearly a meter by the quake.
Sinabung rumbled back to life in 2013, driving 10,000 people so far from their homes.
For generations, Bedouin nomads living by the Red Sea, have heard noises that sound like cannon blasts accompanying small quakes in the area.
Worrisome revelations continue about serious flaws in the two-year-old structure spanning the San Francisco Bay.
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