The old temple of Santiago Apostle, Puriscal, one of the few vestiges that still reveal the damage left by the seismic swarm of 1990 | MAYELA LOPEZ, La Nacion
QCOSTARICA – Red Sismológica Nacional (RSN) de la Universidad de Costa Rica  – National Seismological Network, says it has detected the highest seismic swarm occurring in the capital city since 1990.
The RSN says it has detected 27 earthquakes with magnitudes not exceeding 3.3 during April and May, originating in local faults between Cuidad Colon, Santa Ana and Escazu.
Most of the tremors were not felt by the population, but because they occurred in very populated areas, experts have raised the alert.
According to Lépolt Linkimer, director of the RSN, the swarm reveals that faults near San Jose, like Salitral

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