A strong aftershock hit Haiti on Wednesday morning, shaking buildings and sending people running into the streets.
The United States Geological Survey measures the quake at 6.1 magnitude. It hit at 6:03 a.m., about 35 miles northwest of the capital of Port-Au-Prince. Later Wednesday, it was downgraded by the USGS to a 5.9 magnitude.
The quake struck at a depth of 13.7 miles.
The aftershock came as the U.S. military announced that it is sending additional ships to help with earthquake recovery in Haiti, including one that could remove debris blocking the main port, U.S. Defense Secretary Robert Gates said Wednesday.
The first earthquake was one of the worst in history — an estimated 200,000 dead, 250,000 injured and 1.5 million homeless.