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1 August 2003
Sweeping breakout 600 m from Paliuli and later aerial views
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Left. Large breakout coming from
tumulus (right). Lava flows northeast and then enters sweeping curve that
takes it southeast. Breakout started less than 5 minutes earlier, suddenly
gushing from tumulus. At bend, channel is 3 m wide. Note person in
right-center background. 0548:33. Right. From same place as left
image, showing in greater detail the 3-m-wide bend in the breakout channel.
Note rafts of crust with complex folds and wrinkles. 0548:54. |
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Left. Same breakout as above, but
viewed from east, not northeast. Breakout is waning, and more crust has
formed all along channel, in particular in distal areas. 0550:05. Right.
Looking up channel of breakout, showing lava emerging from under crust at
front, which is 5-m wide. 0553:20. |
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Left. Aerial view of recently and
actively emplaced part of Kohola arm on coastal flat. Shiny, light gray
rock is youngest. Note lobate pattern of flow front. Images above were
taken near stringy "feelers" right (east) of tip of front. 0900. Right.
View of west branch of Kohola arm, with newest strand, narrow and light
gray, moving southward from main branch and nearing top of Holei Pali. Lava
began flowing down Holei at 1745 later today. See large view for
annotations. 0900. |
3 August 2003
Lava cascades on Holei Pali
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Left. Cascades on Holei Pali viewed
from coastal flat, about 500 m away. Foreground is active breakout near
western margin of Kohola arm. 0524. Right. Eastern cluster of
cascades--the brightest in left image--from near base of Holei Pali.
Activity has waned a bit from that show in left image. Height of cascade,
about 40 m. 0540. |
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Left. Dawning sky overlooking
cascades down Holei Pali. Relief, about 30 m. 0547. Right. Looking
upstream at western cluster of cascades on Holei Pali. Relief is about 40
m. 0600. |
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Left. Western cluster of cascades
viewed from east. With improved light, note coating of solidified lava on
pali. All of this coating was formed since 1745 August 1, when lava first
started down Holei Pali. 0609. Right. Eastern cluster of cascades,
same as that shown in image at 0540 but now in early morning light. Relief
is about 40 m. Largest flow shown in more detail in next two images. 0613. |
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Left. Lower part of flow with `a`a
crust descending eastern edge of cascades on Holei Pali. Note the front of
flow is about 2 m high, and that flow has `a`a crust but molten interior.
0617. Right. Close-up of front of flow in left image but taken
while still dark. Width of image, about 1.5 m. 0543. |
4 August 2003
Cascades continue on Holei Pali
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Left. Lava cascades on Holei Pali
viewed from 500 m away. Two clusters of cascades, east and west, are
evident. Height of cascades, about 40 m. 0544. Right. View from
same place with telephoto. 0557. |
5 August 2003
Lava does the two step: Holei and Paliuli
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Left. Looking east at small lava
cascades on Paliuli. Lava comes down Holei Pali in eastern cluster of
cascades fed by breakout from tube below elbow in Kohola arm. Lava then
flows through tubes across slope below Holei Pali and finally meets
Paliuli. 0544. Right. Lava cascades on Paliuli below western
cluster of cascades on Holei Pali (background). Smoke comes from burning
tree along edge of flow. Flow front at bottom of image has just reached
coastal flat at base of Paliuli. Taken from same perch as left image. 0545. |
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Left. Crack at top of Paliuli is
filling with lava coming down slope from eastern cluster of cascades
on Holei Pali. Note recent drapery on uphill side of crack. Height of
drapery, about 3 m. 0558. Right. Detail of lava flowing into crack
in left image. Width of flow, about 1 m. 0559. |
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Left. Fan of lava building outward
from Paliuli, below eastern cluster of cascades on Holei Pali. Image taken
from top of Paliuli, looking southeast. 0603. Right. Photographer
urging on breakout from small tumulus on slope between Holei Pali and
Paliuli. 0614. |
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Left. Small skylight in tube on slope
below eastern cluster of cascades on Holei Pali. Lava flowing through this
tube eventually descends Paliuli to fan shown in left image above. 0621. Right.
Looking up western edge of western cluster of cascades on Holei Pali. Front
of westernmost flow on slope above Paliuli is in foreground. Relief, about
40 m. 0632. |
7 August 2003
Lava and fire on Paliuli
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Left. Looking east at glow from fire highlighting tree
as lava trickles down Paliuli in eastern cluster of cascades. 0535. Right.
View from top of Paliuli looking down on another burning tree and lava in
flow on coastal flat below pali. 0554. |
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Left. Looking northwest at same
beleaguered tree as in left image above, still standing after all these
minutes. 0609. Right. Lava flow on coastal flat, fed by eastern
cluster of cascades, has ignited lone `ohi`a tree. Note flames in first
crotch of tree as well as at base. Western cluster of
cascades on Paliuli forms backdrop, with Holei Pali above. 0613. |
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Left. Smoke from fires makes for nice
sunrise behind burning tree (same as in right image above) along edge of
new flow fed by eastern cascades on Paliuli. 0618. Right. Tip of
most advanced flow on coastal flat fed by cascades on Paliuli in
background. Smoke comes from same tree as in images above taken at 0535 and
0609. Western cluster of cascades is near left edge of image. 0621. |
8 August 2003
Two last views of a skylight
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Left. Using laser gun to measure
velocity of lava in master tube for Mother's Day flow. Multiplying velocity times cross-sectional area yields flux
of lava in tube. The cross-sectional area is interpreted from measured differences in conductivity for very low frequency radio signals passing
across the tube. This skylight, called Okita Nuevo, was filled during breakout early the
next day; see middle and lower right images for August 9. 1207. Right.
Another view of Okita Nuevo skylight. |
9 August 2003
Breakout after inflation
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Left. Lava issuing from breakout
point on north side of rootless shield built on January 21 about 1.3 km
southwest of center of Pu`u `O`o's crater. Breakout started between 0200
and 0257. Note figure in yellow raincoat just left of fume puff. 0606. Right.
Looking left (downstream) from point of left image, showing lava moving in
breakout. 0607. |
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Left. It is never too wet to tape a
good scene. This image shows all-night videographer documenting new
breakout after abrupt inflation of Pu`u `O`o. 0707. Right.
Raincoated-figure examines crusted pad of lava choking former skylight--Okita
Nuevo--on
Mother's Day flow. This skylight was open before breakout started and
is shown in images for August 8.
0744. |
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Left. Edge of new breakout, sheetflow-like,
covering older lava flow. Amount of steam indicates how wet it is. Right.
Another view of lava that welled from Okita Nuevo skylight and now obscures
the view into the tube below. |
14 August 2003
West-side breakouts
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Left. Small breakout from active west
lobe of Kohola arm of Mother's Day flow on coastal flat. Holei Pali in
background. Lava is flowing across older part of Kohola, formed in
February-March. 0547. Right. Two-part breakout. Note lava is
emerging between two plates of crust as well as at downstream end. Isolated
section of crust formed and then split away from rest of crust as lava
issued from crack behind it. Length of flowing lava, about 2.5 m. 0549. |
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Left. Lazy sacks of lava spilling
onto older surface from Kohola arm. Each sack, or toe, is a few tens of
centimeters across. Pulama pali and lower Paliuli in background. 0602. Right.
Finger of lava flowing into depression from under 2-m-wide skin. 0603. |
15 August 2003
Small hornitos above upper Mother's Day tube
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Left. Tiny hornitos (carlitos) in
front of small hornito, roof of Mother's Day tube in area of former Cookie
Monster skylight. Incandescent openings are a few centimeters across. 0938. Right.
Closer view of tiny hornito in obviously treacherous area. Such hornitos
form by spitting of lava out of tube below. Pele's hair sometimes forms by
this process. Coarse hair is visible in large image. 0941. |
Map of flows from Pu`u `O`o: 16 May 2003

Map shows lava flows erupted during 1983-present activity of Pu`u `O`o
and Kupaianaha (see
large map). Red colors, both dark and light, denote Mother's Day flow, which
began erupting on May 12, 2002 and continues to the present. The darkest color
represents flows active since January 21, 2003.
Most recent--and ongoing--activity has produced two flows, one along western
edge of flow field and one slightly farther east. Kohola flow, along western
margin, entered sea late on Valentine's Day to form short-lived Kohola ocean
entry. This flow shortened the road still more. Visitors now can drive to Holei Sea Arch, 1.1 km from Kohola flow, and walk
to see flow. Breakouts have been visible in various parts of Kohola flow,
shifting from time to time across width and length of flow.
Other dark red flow is main active part of Mother's Day flow. Fed by
breakouts from lava tube in main Mother's Day flow, it advanced along eastern
margin of main flow and down Pulama pali and Paliuli. Western of two forks below
Paliuli dripped over sea cliff at Highcastle on May 19, 2003, after map was
made.
Lava from earlier, pre-January 21, 2003 Mother's Day flow (light red) reached sea at West Highcastle early on July 19, at Wilipe`a early on
July 21, and at Highcastle on August 8. From near southwest base of Pu`u `O`o, Mother's Day flow passes along west side of flow field and into forest, where it started large wildfire in May that continued into late July. By June 10,
Mother's Day flow had reached base
of Paliuli, the steep slope and cliff below Pulama pali and just above coastal flat. At base of Paliuli, Mother's Day flow abruptly spread
laterally in series of small budding flows to cover an area nearly 2 km
wide, gradually moving seaward until West Highcastle and Wilipe`a lobes
finally reached water and started building lava deltas. Activity at West
Highcastle ended in early August, but entry began soon thereafter at Highcastle,
eventually burying tiny kipuka of Chain of Craters Road. Wilipe`a entry
died away slowly and had ended by mid-August. Highcastle and neighboring
Highcastle Stairs entries ended on about August 23. For a time there were no
active entries. Then Wilipe`a was reactivated on September 3 but stopped in
December. West Highcastle likewise renewed activity on September
16-17, died away during night of September 18-19, and returned soon
thereafter to continue through March 21. East arm of Mother's Day flow
branched from Highcastle lobe in late October and sent three fingers into ocean
at Highcastle on November 15, West Lae`apuki on November 19, and Lae`apuki on
November 20. Lae`apuki entries had stopped by November 29. If this sounds
like soap opera, the truth is even more confusing than the simplified version
of activity given here.
Eruption-viewing opportunities change constantly, refer to the HVO home page for
current information. Those readers planning a visit to Kilauea or Mauna Loa volcanoes can get much useful
information from Hawai`i Volcanoes National Park.
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