For more information on computation, see the article Bossu et al., 2016:

Regional instrumental seismicity

This seismicity maps have been generated by concatenating the ISC catalogue (since 1964), the EMSC Euro-Med Bulletin catalogue and the EMSC Real Time catalogue. Therefore, they show the seismicity from 1964 until the earthquake occurrence.

Regional deadly earthquakes from 1500 to 2000

Date Long. Lat. Mag. Death Location

1610-02-03 -71.8 8.3 ? 60 MERIDA, VENEZUELA 1644-01-16 -72.5 7.5 7.0 many COLOMBIA-VENEZUELA BORDER REGION 1644-03-16 -73.0 7.6 ? many NORTHERN COLOMBIA 1804-06-16 -74.6 5.3 ? 212 COLOMBIA 1805-06-16 -74.6 5.3 6.0 200 COLOMBIA 1849-02-26 -72.3 7.3 6.0 40 COLOMBIA-VENEZUELA BORDER REGION 1875-05-16 -72.5 7.9 ? 16000 COLOMBIA-VENEZUELA BORDER REGION 1875-05-18 -72.5 7.9 ? 461 COLOMBIA-VENEZUELA BORDER REGION 1894-04-29 -71.7 8.5 7.1 400 MERIDA, VENEZUELA 1950-07-09 -72.6 7.9 7.0 211 COLOMBIA-VENEZUELA BORDER REGION

Source: T. Utsu ; International Handbook of Earthquake and Engineering Seismology; vol. A; 691-718