The study by the National Academies of Sciences comes after dozens of U.S. diplomats in Cuba and China complained of migraines, dizziness and memory loss.
The 7.7-magnitude temblor struck off the coasts of Jamaica, Cuba and the Cayman Islands. Social media was flooded with posts of photos and video from people documenting the event.
The changes, which bar "people-to-people" tours, are intended to further squeeze the Cuban economy while keeping U.S. dollars "out of the hands" of the communist government.
Most people waiting are from Cuba and Central America, but increasingly Juárez has become a destination for migrants from all over the world who are fleeing violence and persecution.
Sixty-four Cuban nationals were deported in fiscal year 2016. Two years later, the number was 463, a more than sevenfold increase, as U.S. policies have toughened towards Cuban immigrants.
Following a Trump administration policy change, Exxon Mobil and two Florida individuals sued companies for using property they said was confiscated by the Cuban government.
Most of the measures are aimed at Havana. One change will allow lawsuits against foreign companies operating on property in Cuba that was seized from U.S. citizens.
Nearly two years after the U.S. said diplomats in Cuba had been injured in a series of "health attacks," many scientists say there's still no proof anyone was injured.
Cubans vote this weekend on a new constitution that enshrines the Communist party as the "supreme guiding political force." Religious leaders are critical of new limits on pluralistic thought.