Strange seismic activity below high-grade Colombia mineral deposits explained

Seismologists claim that the "Caldas tear," a break in a slab separating two tectonic plates is the reason for "curious" seismic activity beneath east-central Colombia's high-grade mineral deposits.

Researchers Alberto Vargas and Paul Mann of the Universidad Nacional de Colombia and the University of Houston, respectively, published a paper in June whose data is said to "reveal a clearly defined, prominent tear."

Colombia sits atop complex tectonic activity involving three plates: the Caribbean plate, the Panama plate, and the Nazca plate.

The Panama plate is an" incredibly important feature for Colombia and for assessing its earthquake hazard," according to Mann.


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The paper appears in the June issue of the Bulletin of the Seismological Society of America (BSSA)

The BSSA is published by the , an international scientific society devoted to the advancement of seismology and the understanding of earthquakes for the benefit of society.