Editing Arenal Volcano (section)

===May 7, 1998===
The eruptions of May 7, 1998 damaged {{Convert|2|km2||abbr=|sp=us}} and destroyed a {{Convert|400 by 100|m||abbr=|sp=us|adj=on}} area of green forest in the vicinity of Arenal Volcano. A fissure, {{Convert|500|m||abbr=|sp=us}} long and {{Convert|10|m||abbr=|sp=us}} deep, was opened up in the wall of the crater and all the material slid down the side of the volcano.

During this day, 23 eruptions were reported, between 1:05&nbsp;p.m. and 7:00&nbsp;p.m., and thereafter the volcano returned to its normal state. Authorities reported no unusual behavior and the national park was reopened the same week. Local [[Seismology|seismologists]] investigated the activity of the volcano and park rangers continued to vigorously enforce the safety perimeter.