In April, 1991, during a submersible diving expedition to the East Pacific Rise (EPR) crest at
9° 46′–51′ N, a new volcanic eruption on the sea floor was discovered. Here, we report
results from numerical modeling of that eruption, which indicate that∼ 4× 106− 6× 106 m3 of
lava was emplaced in∼ 1–2 h, with an average eruption rate of∼ 103–106 m3 s− 1—
comparable to rates observed in Hawaii at Kilauea's East Rift Zone. If the rapid
emplacement of the 1991 EPR lava and its short eruption duration are typical of volcanic …

In April, 1991, during a submersible diving expedition to the East Pacific Rise crest at 9° 46-
51 N, a new volcanic eruption on the sea floor was discovered. Results from numerical
modeling of that eruption are reported, which indicate that 4 10 6-6 10 6 m 3 of lava was
emplaced in 1-2 h, with an average eruption rate of 10 3-10 6 m 3 s-1-comparable to rates
observed in Hawaii at Kilauea's East Rift Zone. If the rapid emplacement of the 1991 EPR
lava and its short eruption duration are typical of volcanic events at fast-spreading mid …