What is described here characterizes the era from Jesus’ ascension (Revelation 5:1–14) to his return (Revelation 21:1–27), thus, the entire New Testament dispensation. The plagues mentioned here are part of regular life as we experience it. See commentary on Revelation 7:14.
7 The first angel blew his trumpet, and there followed hail and fire, mixed with blood, and these were thrown upon the earth. And a third of the earth was burned up, and a third of the trees were burned up, and all green grass was burned up.