Categorized | Featured, Sci-Tech, Videos, Volcano

Volcano Watch: Kilauea activity update for February 28, 2013

20120225_halemaumau-lavalake-t
The lava lake in Halemaʻumaʻu remains poised at a relatively high level within the Overlook pit. The lake level dropped over the weekend. Though rising again now, it has not yet reached last week's level. Photo courtesy of USGS/HVO

The lava lake in Halemaʻumaʻu remains poised at a relatively high level within the Overlook pit. The lake level dropped over the weekend. Though rising again now, it has not yet reached last week’s level. Photo courtesy of USGS/HVO


Time-lapse movie of Halemaumau overlook vent


Time-lapse infrared image movie of Halemaumau overlook vent

(Activity updates are written by scientists at the U.S. Geological Survey’s Hawaiian Volcano Observatory.)

A lava lake within the Halema`uma`u Overlook vent produced nighttime glow that was visible from the Jaggar Museum overlook and via HVO’s Webcam during the past week. The lake level fluctuated in response to a summit deflation–inflation cycle, ranging between about 25 and 60 m (80–200 ft) below the floor of Halema`uma`u.

On Kilauea’s east rift zone, breakouts from the Peace Day tube remain active above and at the base of the pali and on the coastal plain, and small ocean entries are active on both sides of the Hawai`i Volcanoes National Park boundary. In addition, the Kahauale`a flow, fed directly from a spatter cone on the northeastern edge of Pu`u `O`o’s crater floor, continues to advance slowly toward the northeast across a plain of 1980’s-era `a`a flows.

There were no felt earthquakes in the past week on the Island of Hawai`i.

Visit the HVO Web site (hvo.wr.usgs.gov) for Volcano Awareness Month details and Kilauea, Mauna Loa, and Hualalai activity updates, recent volcano photos, recent earthquakes, and more; call (808) 967-8862 for a Kilauea summary; email questions to askHVO@usgs.gov.


Time-lapse multi-image movie of Pu‘u ‘O‘o Crater


Time-lapse infrared movie of Pu‘u ‘O‘o Crater


Time-lapse movie of the Peace Day Flow area

The currently active Peace Day flow (episode 61) as of January 25, 2013, is shown in light reddish orange. Widening of the Peace Day flow field between January 25 and February 25 are shown in dark orange. Changes near the coast were approximated from infrared satellite images. Lava flows fed directly from the Puʻu ʻŌʻō crater as of January 31, including the Kahaualeʻa flow north of Puʻu ʻŌʻō, are shown in pink. Bright red shows the widening of those flows between January 31 and February 25. Older lava flows are labeled with the years in which they were active. Episodes 1–48b (1983–1986) are shown in gray; episodes 48c–49 (1986–1992) are pale yellow; episodes 50–55 (1992–2007) are tan; and episodes 58–60 (2007–2011) are pale orange. The contour interval for topographic lines shown on Puʻu ʻŌʻō is 5 m.

The currently active Peace Day flow (episode 61) as of January 25, 2013, is shown in light reddish orange. Widening of the Peace Day flow field between January 25 and February 25 are shown in dark orange. Changes near the coast were approximated from infrared satellite images. Lava flows fed directly from the Puʻu ʻŌʻō crater as of January 31, including the Kahaualeʻa flow north of Puʻu ʻŌʻō, are shown in pink. Bright red shows the widening of those flows between January 31 and February 25. Older lava flows are labeled with the years in which they were active. Episodes 1–48b (1983–1986) are shown in gray; episodes 48c–49 (1986–1992) are pale yellow; episodes 50–55 (1992–2007) are tan; and episodes 58–60 (2007–2011) are pale orange. The contour interval for topographic lines shown on Puʻu ʻŌʻō is 5 m.

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>

 

 

Become a fan on facebook

Photos on flickr

Stock Quotes

NASDAQ4758.252  chart+3.36
S&P 5002067.03  chart-2.38
^NYA11029.37  chart-12.049
^TNX2.26  chart-0.05
AAPL117.60  chart-1.025
FB75.63  chart+1.62
GOOG541.08  chart+1.81
INTC36.32  chart+0.07
MSFT47.47  chart-0.12
ORCL41.15  chart-0.28
QCOM72.27  chart+0.575
ALEX38.68  chart-0.62
BOH58.78  chart-0.31
BRN2.45  chart-0.03
BYD12.45  chart+0.50
CAGU0.20  chart0.00
CPF19.24  chart-0.06
CYAN6.3684  chart+0.0183
HA19.60  chart+0.62
HCOM25.93  chart-1.02
HE27.48  chart+0.17
MLP5.36  chart+0.05
MRPI0.0004  chart0.00
NNUT0.00  chartN/A
PLFF0.04  chart0.00
TBNK21.01  chart+0.08
TSO78.55  chart+0.71
Nov 25, 2014 / 5:15 pm

 

 

Quantcast