Volcano Hazards Program Office

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Norris-2003. Panoramic photo of the area impacted during the explos...
July 23, 2003

Panoramic photo of area impacted during explosions at Norris in 2004

View to the southeast through the area affected by the increased thermal output at Norris' Back Basin in the summer of 2003. The foreground shows steaming areas where boiling water and steam have approached the surface, resulting in increased ground temperatures.

July 5, 2003

Lava pours out from under crust

Lava pours out from under crust at front of advancing breakout. See still taken at 0607:33 today.

July 5, 2003

Lava emerges from under crust

Lava emerges from under crust along side of breakout on steep slope. Listen to creaking sounds, about halfway through video, as crust flexes and breaks. See still taken at 0610:15 today.

July 5, 2003

Lava appears from under crust and drops into depression

Lava appears from under crust and drops into depression at front of advancing breakout. Width of blob of lava that appears is about 30 cm.

July 5, 2003

Lava flow

This clip lasts 30 seconds and so is a large file, but it shows such notable dynamics at flow front that it might be worth it to some of you patient ones. The active stream is 50-75 cm wide. Note, early on, how sliding crust plows into lava.

June 26, 2003

Lava issues from breached tube

Lava issues from breached tube and quickly disappears over old sea cliff. Note that center of stream stands above margins. See still taken at 0545 today.

June 26, 2003

Lava cascade

Same cascade as in first clip, but viewed more from side to see lava falling down cliff and spreading across surface of lava delta. Similar view to still image taken at 0548 today.

June 26, 2003

Surging cascade on steep cliff face

Surging cascade on steep cliff face. Note that surges override part of cascade next to cliff, which is slowed by friction with the cliff.

June 21, 2003

Lava in channeled breakout

Lava in channeled breakout from nearby tumulus flowing rapidly down steep slope before spreading out on flat ground. Same channel as shown in last two stills for today. Width of channel, about 2 m.

June 7, 2003

Gushing start of lava cascade

Gushing start of cascade shown in image taken at 0553. Lava comes from crusted flow to right. Width of flowing lava, about 1 m.

June 7, 2003

Lava flow

Downstream from first clip about 2 m. Same as shown in image taken at 0554.

June 1, 2003

Two strands of flowing lava come together

Two strands of flowing lava come together to form single cascade on upper part of old sea cliff at Highcastle. Still taken at 0546 shows same scene.