A strong magnitude 6.7 earthquake occurred at 18:48:16 (UTC) on Tuesday, November 22, 2011, in the Beni region, 195 km SSE from Santa Ana, at a hypocentral depth estimated to be 553 km.
A strong magnitude 6.2 earthquake occurred at 20:55:42 (UTC) on Sunday, October 12, 2008, in the Chuquisaca region, 100 km ESE of Potosi, Bolivia, at a hypocentral depth estimated to be 356 km.
A strong magnitude 6.0 earthquake occurred at 14:45:11 (UTC) on Saturday, February 16, 2008, in Potosi, Bolivia, 169 km NE of Calama, Chile, at a hypocentral depth estimated to be 134.3 km.
A strong magnitude 6.9 earthquake occurred at 19:26:49 (UTC) on Thursday, November 17, 2005, in Potosi, Bolivia, at a hypocentral depth estimated to be 105 km, 110 km East of Calama, Chile.
