As of 2010, the following major earthquakes have been recorded in Haiti.

Eric Calais, a geophysicist at Purdue University who has researched in the area for years, and Ross Stein of the United States Geological Survey in Menlo Park, California, and colleagues have independently calculated that the earthquake has increased the risk on other segments of the Enriquillo fault and perhaps on other faults, although the quake probably did not increase the risk (which is already known to be high) of a major tremor on the Septentrional fault. Stein suggests that if the calculations are right—noting that they may well not be—something may be "fundamentally locked in some fashion, on pretty much all scales, and might be capable of popping off something large". Historical accounts, although not precise, suggest that there has been a sequence of quakes progressing westwards along the fault, starting with an earthquake in the Dominican Republic in 2010. There are concerns that the 12 January earthquake could be the beginning of a new long-term sequence of both earthquakes and tsunamis: "the whole region is fearful".

Haiti ⁱ/ˈheɪti/ (French: Haïti [aiti]; Haitian Creole Ayiti [ajiti]), officially the Republic of Haiti (République d'Haïti; Repiblik Ayiti), is a Caribbean country. It occupies the western, smaller portion of the island of Hispaniola, in the Greater Antillean archipelago, which it shares with the Dominican Republic. Ayiti (land of high mountains) was the indigenous Taíno or Amerindian name for the island. The country's highest point is Pic la Selle, at 2,680 metres (8,793 ft). The total area of Haiti is 27,750 square kilometres (10,714 sq mi) and its capital is Port-au-Prince. Haitian Creole and French are the official languages.

Haiti's regional, historical, and ethno-linguistic position is unique for several reasons. It was the first independent nation of Latin America and the Caribbean, the first black-led republic in the world, and the second republic in the Americas when it gained independence in 1804 as part of a successful slave revolution lasting nearly a decade. In 2012, Haiti announced its intention to seek associate membership status in the African Union. Haiti is the only predominantly Francophone independent nation in the Americas. It is one of only two independent nations in the Americas (along with Canada) to designate French as an official language; the other French-speaking areas are all overseas départements, or collectivités, of France.

Anderson Hays Cooper (born June 3, 1967) is an American journalist, author, and television personality. He is the primary anchor of the CNN news show Anderson Cooper 360°. The program is normally broadcast live from a New York City studio; however, Cooper often broadcasts live on location for breaking news stories. As of September 2011, he also serves as host of his own eponymous syndicated daytime talk show, Anderson.

Anderson Hays Cooper was born on June 3, 1967, the younger son of the writer Wyatt Emory Cooper and the artist, designer, writer, and heiress Gloria Vanderbilt, and is a great-great-great-grandson of Cornelius Vanderbilt of the prominent Vanderbilt shipping and railroad fortune. Cooper's media experience began early. As a baby, he was photographed by Diane Arbus for Harper's Bazaar. He is also a descendant, through his mother, of Brevet Major General Hugh Judson Kilpatrick who was with Union General William T. Sherman in his March through Georgia.

At the age of 3 Cooper was a guest on The Tonight Show on September 17, 1970, appearing with his mother. At the age of 9, he appeared on To Tell the Truth as an impostor. From age 10 to 13 Cooper modeled with Ford Models for Ralph Lauren, Calvin Klein and Macy's.