Induced seismicity in Basel
The largest event prompted concern from local residents. The six borehole seismometers installed near the Basel injection well to monitor the natural background seismicity and the geothermal stimulation recorded more than 13,500 potential events connected with the geothermal project, from which 3,124 were of sufficient quality to permit [hypocenter] determinations in the period 2–12 December 2006, which spanned the main stimulation and the decline in the event rate. During the post-stimulation period from 13 December 2006 onward, a further 350 locatable events were detected up to 2 May 2007, by which time events were occurring sporadically at around one per day. In all, locations for more than 3,500 events were determined.
List of earthquakes in Colombia
The most devastating earthquake for Colombia happened on August 15 and 16, 1868 off the coast of Ecuador, leading to approximately 70,000 fatalities. The strongest earthquake, with an estimated moment magnitude of 8.8 also happened offshore Ecuador in 1906. Other major earthquakes were the 1875 Cúcuta earthquake with around 10,000 deaths and the 1999 Armenia earthquake with an intensity of X. The deepest registered earthquake happened in the department of Amazonas in 1970 at an estimated depth of almost . The 1785 Viceroyalty of New Granada earthquake sparked the birth of journalism in Colombia, initiated by Manuel del Socorro Rodríguez, six years after the publication of the "Aviso del Terremoto" about the earthquake with its epicentre in La Calera, Cundinamarca.