Photo and Video Chronology - Kīlauea - February 27, 2004

Release Date:

Murky day near Pu`u `O`o

This is a lava shield under construction at south base of Pu`u `O`o.

Lava shield under construction at south base of Pu`u `O`o. The shield started to form during a substantial deflation of Pu`u `O`o on February 21. It had three vents, all near the MLK vent (near center of image, partly buried by growing shield. Two of the shield's vents are now submerged. To left is scallop of Puka Nui. Cracks on Pu`u `O`o opened or widened during MLK event on January 18.

(Public domain.)

This is a photo of a lava shield.

Closer view of lava shield, showing active flows spilling down gentle flanks.

(Public domain.)

 

This is a photo of lava flow gradually spreading across brown tephra deposit produced by high fountains from Pu`u `O`o.

Lava flow gradually spreading across brown tephra deposit produced by high fountains from Pu`u `O`o in mid-1980s. Flow is fed by Okita shield, in upper center of view, the uppermost shield along the Mother's Day lava tube.

(Public domain.)

This is a photo of spires at Cookie Monster hornito.

Loud hissing sounds and spitting spatter come from these spires at Cookie Monster hornito, currently the uppermost manifestation of the Mother's Day lava tube.

(Public domain.)

 

Map of flows from Pu`u `O`o: 22 January 2004

This is a map of flows from Pu`u `O`o on 22 January 2004.

Map shows lava flows erupted during 1983-present activity of Pu`u `O`o and Kupaianaha. Yellow lava flows began erupting from new vent (green star) at base of Pu`u `O`o on January 18, 2004; it is named the MLK flow.

Shades of red denote Mother's Day flow, which began erupting on May 12, 2002 and continues to the present. Darkest shade indicates lava flows erupted in November 2003-January 2004. Yellow stars indicate centers of recently active, or still active, rootless shields in Mother's Day flow. New shields often form, so it is hard to show all shields on this map.

Through September and into early October 2003, lava was moving along the east and west sides of the Mother's Day flow. The east-side lava (known as the August 9 breakout) came from the August 9 rootless shield, itself fed by the main Mother's Day tube from Pu`u `O`o. The west side lava, known as the Kohola arm of the Mother's Day flow, branched off the tube system below the rootless shield.

In early October 2003, the August 9 breakout stopped moving, the Kohola died back to a trickle, and the one labeled rootless shield gained prominence. By October 16, however, the shield had partly collapsed, leaving several drained perched ponds behind. Upstream from the shield, many hornitos and small flows formed over the Mother's Day tube. Soon thereafter, other rootless shields began to form over the Mother's Day, August 9, and Kohola tubes. These shields have been active throughout November and December.

Vents in West Gap Pit became active in early October, were quiet for 3 weeks, and then resumed intermittent activity that continued well into December. Other vents were also sporadically active in Puka Nui (near West Gap Pit) and in the crater of Pu`u `O`o.

(Public domain.)

Map of Pu`u `O`o and vicinity: 26 January 2004

This is a map of Pu`u `O`o and vicinity on 26 January 2004.

Map shows vents, lava flows, and other features near Pu`u `O`o frequently referred to in updates. These features change often, but this map should help those viewers lost in the terminology. The cones in West Gap are just outside the boundary of the crater--the oval shaped depression containing the seven numbered vents. Red color denotes flows--the Mother's Day flows--erupted since May 12, 2002. Orange color indicates episode-55 flows erupted between March 1997 and August 2002 (exclusive of Mother's Day flows). Gray shows flows of earlier episodes.

(Public domain.)