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Jun 30, 2014 1:17 AM by Sam Salzwedel

Tucson's biggest quake 1,000 times stronger than Saturday's

TUCSON - Saturday's earthquake had 1,000 times less energy than the 1887 quake that shook Arizona.

On May 3, 1887, around 2 p.m., an estimated 7.2 magnitude earthquake shook people from Mexico City to Phoenix. The epicenter was about 50 miles south of Douglas, near Bavispe, Sonora. The fault scarp was visible just 5 south of Douglas.

The Arizona Geological Survey has a book about the events that was put together in 1980.

The quake killed more than 50 people in Mexico. In Pima and Cochise Counties, it scared people, horses, cows and dogs.

Rockslides sparked wildfires in the Catalina, Rincon, Huachuca, Santa Rita, and Chiracahua Mountains among others. Some streams and geysers went dry, while other rivers and washes started to flow.

In Charleston, on the San Pedro River between Sierra Vista and Tombstone, no buildings were safe to live in anymore. Some of the fish died because of the ashes from the wildfires.

That quake only happens once every 10,000 to 100,000 years, according to a YouTube video about the event.

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