Tag Archive | "mauna loa"

During a kona wind, fume from Pu‘u ‘Ō‘ō (foreground) and Halema‘uma‘u Crater (background), both on Kīlauea, blows northward, with towering Mauna Loa and Mauna Kea on the horizon. USGS photo.

Volcano Watch: What is a volcano?

To a volcanologist, a volcano is a structure containing a vent or cluster of vents fed by magma rising directly from great depth within the earth.

Read the full story

Posted in Featured, Sci-Tech, VolcanoComments (3)

IDL TIFF file

Mauna Loa is the largest active volcano on Earth

Mauna Loa last erupted in 1984. In September 2015, volcanologists raised an alert after detecting an increase in the number of shallow earthquakes near the summit and the upper Southwest Rift Zone.

Read the full story

Posted in Featured, Sci-Tech, VolcanoComments (0)

The Mauna Loa Solar Observatory with Mauna Kea in the background. Photo courtesy of MLSO

Lost hiker rescued on Mauna Loa Sunday (Sept 20)

Rescue crews responded to a 7:18 p.m. alarm Sunday (Sept 20) to Mauna Loa for a lost hiker. A 42-year-old Japanese visitor got lost while hiking on the Mauna Loa trail about 1.5 miles above the Mauna Loa Solar Observatory. The man had been hiking all day, was caught in heavy rain, strong winds and […]

Read the full story

Posted in NewsComments (0)

The four-tiered USGS Volcanic Activity Alert-Notification System uses Volcano Alert Level terms and Aviation Color Codes to inform people about a volcano’s status and potential volcanic ash hazards. For more information about this system, please see http://pubs.usgs.gov/fs/2006/3139/. The status of Mauna Loa on the Island of Hawai‘i was recently elevated to ADVISORY/YELLOW. USGS graphic.

Volcano Watch: The Art (and Science) of Assigning Volcano Alerts Levels

This change for Mauna Loa’s status to YELLOW/ADVISORY reflects HVO’s determination that the volcano is showing persistent signs of low-level unrest.

Read the full story

Posted in Featured, Sci-Tech, VolcanoComments (0)

TOP: Mauna Loa weekly earthquake rates between 2010 and September 17, 2015. Blue bars indicate the number of earthquakes that were located by the USGS Hawaiian Volcano Observatory seismic network. Earthquakes of all magnitudes are plotted. Subtle increases in earthquake rates started in mid-2013, while more obvious changes in rates started in 2014. BOTTOM: Change in distance across Mauna Loa's summit caldera between 2010 and September 17, 2015. Blue dots indicate the relative distance between two stations that span the summit caldera of Mauna Loa, shown in the map on the upper left. Sustained extension across the caldera started in mid-2014. This extension is one of the indicators of magma infilling a complex reservoir system beneath the summit and upper Southwest Rift Zone.

USGS raises Mauna Loa’s volcano alert level to Advisory status

Scientists at the U.S. Geological Survey Hawaiian Volcano Observatory have elevated the Volcano Alert Level for Mauna Loa from NORMAL to ADVISORY.

Read the full story

Posted in Featured, Sci-Tech, VolcanoComments (0)

1950 Mauna Loa eruption. Label on back: “Official Photo, U.S. Air Force.”

Volcano Watch: What happens to lava flows after they enter the ocean?

Does lava continue to flow exactly as it did on land or does it behave differently after it enters the ocean?

Read the full story

Posted in Featured, Sci-Tech, VolcanoComments (0)

20150715-usgs-mauna-loa-t

Volcano Watch: Is Mauna Loa gaining weight?

How we use gravity to monitor volcanoes takes advantage of the knowledge that the pull of gravity is stronger when there is more mass beneath the spot where it’s measured.

Read the full story

Posted in Featured, Sci-Tech, VolcanoComments (0)

This 1891 map shows much of the saddle between Mauna Kea (at top of map) and Mauna Loa. Lava flows depicted as black irregular shapes in the lower half of the map were erupted from Mauna Loa, with labeled ages ranging from “ancient” to 1881. The Mauna Kea branch of the 1880–1881 lava flow, visible as a small, thumb-shaped flow at the bottom center of the map, sits atop the much larger 1855–1856 lava flow that also threatened Hilo. To see details of this extraordinary map, go to http://ags.hawaii.gov/survey/map-search/, enter "1718" in the "Registered Map No." box, and click "Search" to open the full resolution map. Map courtesy of Hawaii State Archives.

Volcano Watch: Map and newspaper archives help unravel the eruptive histories of Hawaiian volcanoes

USGS Hawaiian Volcano Observatory scientists extract as much insight as possible from historic accounts of eruptions, and then combine that information with current observations.

Read the full story

Posted in Featured, Sci-Tech, VolcanoComments (0)

mokuaweoweo-pano-2015-05-07-110005-t

Volcano Watch: Restless activity beneath Mauna Loa continues

The recent high lava lake levels at Kīlauea Volcano have caught the attention of visitors and kama‘aina alike. But we shouldn’t forget that unrest at Mauna Loa continues.

Read the full story

Posted in Featured, Gallery, Photographs, Sci-Tech, Videos, VolcanoComments (0)

The Mauna Loa Solar Observatory with Mauna Kea in the background. Photo courtesy of MLSO

Volcano Watch: Mauna Loa Observatory — The Keeling Curve recognized as landmark science

Continuous CO2 monitoring began on Mauna Loa in 1958, when Charles David Keeling installed state-of-the-art instrumentation high on the remote north flank of the volcano and began carefully measuring the amount of CO2 in the air.

Read the full story

Posted in Featured, Sci-Tech, Videos, VolcanoComments (0)

MaunaLoa-Flow-History-Map-t

Volcano Watch: Mauna Loa lava flow blazed a trail for the Saddle Road

A look back at the 1880-1881 Mauna Loa lava flow and the threat that it posed to Hilo.

Read the full story

Posted in Featured, Sci-Tech, VolcanoComments (0)

‘A‘ā lava flows erupt from the Northeast Rift Zone of Mauna Loa on March 25, 1984—the first day of the volcano’s most recent eruption. USGS photo.

Volcano Watch: Mauna Loa: Quiet for many years, but not to be forgotten

Over the past few months, Mauna Loa, Hawai‘i Island’s largest volcano, has shown subtle signs of stirring from its 31-year-long slumber (its most recent eruption began on March 25, 1984).

Read the full story

Posted in Featured, Sci-Tech, Videos, VolcanoComments (0)

 

 

Become a fan on facebook

Photos on flickr

Stock Quotes

NASDAQ4363.14  chart-146.42
S&P 5001880.05  chart-35.40
AAPL94.02  chart-2.58
FB104.07  chart-6.42
GOOG683.57  chart-24.44
INTC29.04  chart-0.73
MSFT50.16  chart-1.84
ORCL35.70  chart-0.75
QCOM44.02  chart-1.64
ALEX29.59  chart-0.35
BOH61.69  chart+0.13
BRN1.65  chart-0.02
BYD15.86  chart-0.97
CAGU0.3001  chart+0.0000
CPF20.00  chart+0.02
CYAN5.00  chart-0.11
HA31.99  chart-2.10
HCOM21.06  chart-1.36
HE29.90  chart-0.20
MLP5.22  chart+0.01
MRPI0.00  chart+0.00
NNUTU2.89  chart+0.00
PLFF0.055  chart+0.000
TBNK25.40  chart-0.44
TSO76.24  chart-3.55
Feb 5, 2016 / 5:15 pm

 

 

Quantcast