The volcano on Jabal al-Tair (Bird Mountain) island spewed lava out of fissures created by that previous eruption, but the activity did not threaten nearby islands or the Yemen mainland.
Mohammed al-Qadasi, a Yemen professor of volcanoes and geology, told the IRIN news agency it was not clear when the eruptions would subside.
"The fissures made it easy for the new eruption to occur," al-Qadasi said, adding that this kind of volcano does not cool off quickly and may well produce a series of eruptions before returning to dormancy.
There have been several previous known eruptions of the volcano, including a possible one in 1332 and others in the 18th and 19th centuries. The last time the island witnessed a strong volcanic eruption was in 1883.
