The impoverished Caribbean nation has a long and traumatic history of earthquakes and their terrible aftermath. The 2010 quake killed around 160,000 people, cost billions, and the recovery effort is ongoing. So you could forgive locals for being scared when a 7.2-magnitude quake struck near the town of Saint-Louis du Su in the country’s west on Saturday morning, killing at least 720 people and injuring more than 1,800. Buildings and homes were toppled and damaged, and newly installed Prime Minister Ariel Henry said rescue teams are looking for survivors. “We have learned that the local hospitals … are overwhelmed with wounded, fractured people.” US President Joe Biden said US aid was on the way.