The sheer power of the quake measuring 5.9 on the richter scale covered an area of 7.3 miles ( 11.7 Kilometres) stretching from Port-de-Paix on the northern coast to the town of Gros-Morne further south.
President Jovenel Moïse also tweeted that civil protection workers are already working to assist people in affected areas.
The quake occurred about 12 miles north of Port-de-Paix in northwest Haiti.
Prime Minister Jean-Henry Céant said a crisis cabinet has been created to coordinate all emergency responses to the quake.
"I congratulate the citizens for their show of solidarity and support", Moise said in a Twitter message, vowing to ensure that the government was doing everything possible to help victims.
Considerable numbers of people are still housed in emergency accommodation, and the economy is still faltering, a situation that general political disarray in the country does little to improve.
Officials reported that people had been injured, but had not confirmed local media reports of deaths.
The police chief for the coastal town said more than 100 were injured.
There was an unusual buzz of activity, however, at the site in Gros-Morne where a community center had collapsed.
The building's guard, who was sleeping at the time of the quake, was killed.
Pierre Jacques Baudre, a farmer and father of seven, said he was afraid to return to his home after one wall built with rocks and cement crumbled.
The tremor was one of the strongest to batter Haiti since the 7.0 magnitude quake struck near the capital, Port-au-Prince, in 2010. Tens of thousands of Haitians are still displaced eight years later.
The damage caused was worth an estimated 120 percent of GDP in Haiti, the poorest country in the western hemisphere.