Haiti and Chile Earthquakes Magnitute 6.6 Afterscock Rocks Chile by Gary Kopycinski on March 5, 2010 Gary Kopycinski Author More in Haiti and Chile Earthquakes: Haitians Still Threatened by Inadequate Cholera Response October 20, 2011 Clean Water, Sanitation and Food Remain Relief Priorities in Haiti – UN Official October 4, 2011 Citing Precarious Conditions, UN Urges Governments Not to Return Haitians June 21, 2011 CHILE–(ENEWSPF)–March 5, 2010. This morning, a magnitude 6.6 aftershock, the most powerful aftershock in six days, sent terrified Chileans into the streets and forced doctors to evacuate some patients from major hospitals.