All of them measured between magnitude 4.5 and 5.5, according to the U.S. Geological Survey (USGS).
The US Geological Survey registered the two strongest of the quakes at 5.6 magnitude.
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Robert Milici, an 81-year-old geologist for the U.S. Geological Survey, didn't bother with orange vests.
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David Hill, an emeritus scientist with the U.S. Geological Survey in Menlo Park, Calif.
One, on Thursday morning, had a magnitude of 6.2, the US Geological Survey said.
According to the Colombian Geological Survey (Ingeominas), an accident was reported at the Desespero coal mine.
"It was quite a bit smaller, " said Julie Dutton, a geophysicist with the U.S. Geological Survey.
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The quake, which the US Geological Survey says had a 6.8 magnitude, reportedly lasted for three minutes.
The United States, uses 410 billion gallons of water every day, according to the U.S. Geological Survey.
According to the US Geological Survey, there may be deposits of rare earths in 14 US states.
The US Geological Survey has pegged Marcellus at an estimated recoverable total of 84 trillion cubic feet (TCF).
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The U.S. Geological Survey advised the Coast Guard where the ship's sinking would have the least environmental impact.
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Virginia Burkett is the scientist at the U.S. Geological Survey who has analyzed the ground-based measurement of subsidence.
Studies about Kyrgyz small-scale mining were conducted by the World Bank and the Geological Survey of Denmark and Greenland.
In August, an announcement by the U.S. Geological Survey triggered a storm of uncertainty in the natural gas industry.
It registered as a 2.1-magnitude earthquake on the U.S. Geological Survey website.
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Researchers from the U.S. Geological Survey have estimated that two-thirds of polar bears will be gone by 2050.
Estimates from the US Geological Survey indicated that there could be 60 billion barrels of oil in the region.
The U.S. Geological Survey, the federal outfit that studies earthquakes, acknowledges that increased seismic activity coincides with wastewater injection.
The U.S. Geological Survey figures that at current oil prices, about 6 billion barrels would be worth pumping out.
The U.S. Geological Survey declined to say whether the two quakes were linked.
An oft-quoted figure that the region contains 25% of the world's undiscovered oil and gas is generally attributed to America's Geological Survey.
The quake, with a magnitude 8.0, struck at 01:12 GMT near the Santa Cruz islands, the US Geological Survey said.
But when Mr Shoemaker, then aged 20, began his career with the United States Geological Survey, few believed such things.
"Storm vulnerability is made worse by ongoing wetland loss and barrier island erosion, " according to the U.S. Geological Survey Web site.
Data from the United States Geological Survey suggest the seabed between Greenland and Canada holds a total of 17 billion barrels.
The United States Geological Survey, a government scientific body, reckons that the seas around Cuba hold 4.6 billion barrels of oil.
"They are very similar, and both have the ability to erupt, " John Power, a scientist from the U.S. Geological Survey, told CNN.
The quake struck 90km (60 miles) south of the country's only nuclear power station in Bushehr, the US Geological Survey (USGS) says.
Saturday's quake occurred along the Longmenshan fault line, which was also the source the 2008 quake, according to the U.S. Geological Survey.
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