On 21 October 2014 SGC raised the alert level for the volcanic complex to orange (level 3 of 4) noting that a seismic swarm characterized by 4,300 earthquakes was detected in an 18-hour period. Hypocenters were located 1–4 km southwest of Chiles volcano at depths of 3–5 km and local magnitudes between M 0.2 and 4.5.
On October 21, 2014, the SGC raised the alert level for the volcanic complex to orange (level 3 out of 4) due to a seismic swarm that included 4,300 earthquakes detected over an 18-hour period. The hypocenters were located 1–4 kilometers southwest of Chiles volcano at depths of 3–5 kilometers, with local magnitudes ranging from M 0.2 to 4.5.