Between 20:00 on 2 June and 19:59 on 3 June, OVDAS reported that about 1,450 earthquakes at Puyehue-Cordón Caulle were detected, or an average of about 60 earthquakes per hour. Scientists and regional authorities flew over the volcano, noting no significant changes. The alert level remained at 3, yellow. Area residents reported feeling earthquakes during the evening of 3 June through the morning of 4 June.