Via the ARRL: Strong Earthquake Shakes Puerto Rico, ARES Standing By

A strong magnitude 6.4 earthquake hit Puerto Rico early on January 7 on the heels of a smaller magnitude 5.8 tremor a day earlier. The Puerto Rico Electric Power Authority reported widespread power outages after generating plants automatically activated protective shutdown systems following the earthquake. Puerto Rico Governor Wanda Vazquez Garced urged citizens to remain calm.

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