Gas escapes from fissures that erupted in Napau Crater on the east rift zone of Kilauea Volcano during eruptive episode 54. The crater is about 5 km uprift (SW) from Pu`u `O`o. The dark patches on either side of the fissures are lava flows that were emplaced during the activity. This part of the east rift zone widened about 1 m as magma forced its way to the surface to feed the eruption.