The Tierra Blanca Joven eruption is El Salvador's largest volcanic eruption in the last 10,000 years. This VEI-6 Plinian eruption occurred during the 5th century and was larger than the 1883 eruption of Krakatoa or the 1991 eruption of Mount Pinatubo, having probably been more comparable to the 1815 eruption of Mount Tambora. It produced about of tephra (several times as much as the 1980 eruption of Mount St. Helens), produced major pyroclastic fall and large pyroclastic flows that covered under or more of pumice and ash. The eruption devastated an area of up to radius around the volcano. Some researchers describe the eruption as having occurred in the 5th-6th century. Having produced more than of dense rock, the Tierra Blanca Joven eruption is one of the largest volcanic events on Earth in recorded history.