(CNN) -- The earthquake that struck the U.S. northeast on Tuesday slowed but didn't halt major transportation services.
--Service at major airports throughout the region was disrupted, but all were reported to have resumed normal operations within two hours after the earthquake struck. However, travelers were warned to expect delays.
--Control towers at John F. Kennedy International Airport in New York and Newark International Airport in New Jersey were temporarily evacuated.
--At Reagan National Airport near Washington, D.C., one terminal was evacuated due to a gas odor, but it later reopened.
--Airports in Virginia also were operating normally, according to a Federal Aviation Administration spokesperson.
--Amtrak service between Washington and Baltimore was operating at reduced speed in the aftermath of the earthquake, Amtrak said, but returned to normal Tuesday night.
Subway and Bus
--The Washington Metrorail subway system operated trains at 15 miles per hour as workers inspected the system. The speed restriction caused "significant delays," according to a Washington Metro Area Transit Authority statement.
--All Washington Metrobus routes were operating, but experiencing delays due to traffic signal outages and heavy traffic, according to the statement.