Mauna Kea Update: New Observatory Instrument Stuck In Hilo (Aug. 7, 2019)
video courtesy East Asian Observatory
Mauna Kea from Mauna Loa, 12 Minutes around Sunset
Cloud level was higher than usual in the afternoon August 28, 2011. I drove up Mauna Loa through cloud, and it cleared up just below the site near MLO, Mauna Loa Observatory at 11,000 feet above sea level. Sky was clear, wind was mild, and cloud was drifting slowly. I took some photos and started taking this movie just before sunset.
Cloud level was getting lower. Something flew through the frame at 7:08/12:27, which I think an insect.
I came there to take astrophotos, and I began setting of my equipment. The sunset was beautiful, and stars got visible gradually. I could enjoy clear and dark night there till the next morning. The sky was amazing. The stars were bright, and the Milky Way was clear.
Photo is here:
Directions and Maps to MLO, Mauna Loa Observatory
130808-Hawaii-Mauna Kea Observatory Tour
We take the Mauna Kea Observatory and stargazing tour.
Hilo, Hawaii - A Tree Full of Birds at the Hilo Hawaiian Hotel (2018)
Hilo is the largest settlement and census-designated place (CDP) in Hawaii County, Hawaii, United States, which encompasses the Island of Hawaiʻi. The population was 43,263 at the 2010 census.
Hilo is the county seat of the County of Hawaiʻi and is in the District of South Hilo. The town overlooks Hilo Bay, at the base of two shield volcanoes, Mauna Loa, an active volcano, and Mauna Kea, a dormant volcano and the site of some of the world's most important ground-based astronomical observatories. Much of the city is at some risk from lava flows from Mauna Loa. The majority of human settlement in Hilo stretches from Hilo Bay to Waiākea-Uka, on the flanks of Mauna Loa.
Hilo is home to the University of Hawaiʻi at Hilo, ʻImiloa Astronomy Center of Hawaiʻi, as well as the Merrie Monarch Festival, a week-long celebration of ancient and modern hula that takes place annually after Easter. Hilo is also home to the Mauna Loa Macadamia Nut Corporation, one of the world's leading producers of macadamia nuts. The town is served by Hilo International Airport.
Snow Covered Mauna Kea On The Big Island Of Hawaii January 16, 2020 Using GoPro Hero4
I wanted to get to the summit of Mauna Kea on the Big Island of Hawaii before the snow melted. This is the portion of the paved road nearing the summit showing the amazing snow in Hawaii. I truly hope you enjoy the beauty. If you don't like the music, simply turn off the volume. This was recorded using a GoPro Hero4 mounted to the windshield.
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President Announces New Mauna Kea Observatory Tour
Big Island (Hawai'i Island), Hawaii 4K (UHD)
Recorded: May 2019
This is one of the three Hawaiian islands that I decided to visit. I spent three days there, drove 345 miles by car and visited, incl. the places described below.
I think that three days on such a large island is a bit too little. The distances between the points to travel are longer than on other Hawaiian islands.
Big Island, or Hawaiʻi Island is the largest and the southeasternmost island located in the U.S. state of Hawaii. The island of Hawaiʻi is the third largest island in Polynesia, behind the two main islands of New Zealand. Administratively, the whole island encompasses Hawaiʻi County. The county seat and largest city is Hilo where I lived.
00:00 Coconut Island, Hilo
03:37 Mauna Loa Macadamia Nut Farm and Factory, Hilo
05:25 Old Mamalahoa Hwy, East Big Island
07:09 Onomea Bay Trail, Old Mamalahoa Hwy
07:43 Laupahoehoe Lookout, Mamalahoa Hwy
07:56 Laupahoehoe Beach Park
09:41 Akaka Falls State Park
13:28 Mauna Kea, Saddle Rd
14:58 Mauna Kea, Access Rd
15:19 Mauna Kea 4,207 m. a.s.l., the highest point in the state of Hawaii
18:52 Mauna Loa Observatory Rd
19:42 Hawai'i Volcanoes National Park, Kilauea Volcano, Halemaumau Crater
21:39 Kilauea Iki Crater
24:57 Crater Rim Drive
25:18 Kilauea Volcano, Halemaumau Crater
27:48 Keanakakoi Crater, Kilauea Volcano
28:04 Kilauea Volcano, Halemaumau Crater
28:35 Crater Rim Drive
28:40 Chain of Craters Road
29:49 Kealakomo Overlook, Chain of Craters Road
30:50 Chain of Craters Rd
31:09 Holei Sea Arch, Chain of Craters Rd
31:45 Chain of Craters Rd
32:04 Green Sand Beach (Papakolea)
Music:
Fresh Fallen Snow - Chris Haugen
When We Found The Horizon - Late Night Feeler
Get Back Up - Silent Partner
Last Day of High School - Borrtex
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Please contact me for commercial / film use.
Website: BORRTEX.com
Contact the composer:
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Mystic Crock - Nomad - 05 - Introverted
Third Time - Jingle Punks
Visiting Amazing Hilo, Hawaii County, Hawaii, United States
Hilo (/ˈhiːloʊ/) is the largest settlement and census-designated place (CDP) in Hawaii County, Hawaii, which encompasses the Island of Hawaiʻi. The population was 40,759 at the 2000 census. The population increased by 6.1% to 43,263 at the 2010 census.[1]
Hilo is the county seat of the County of Hawaiʻi and is located in the District of South Hilo.[2] The town overlooks Hilo Bay, situated upon two shield volcanoes; Mauna Loa, an active volcano, and Mauna Kea, a dormant volcano and the site of some of the world's most important ground-based astronomical observatories. The majority of human settlement in Hilo stretches from Hilo Bay to Waiākea-Uka, on the flanks of Mauna Loa. For more info, visit this link:
Words by Audionautix is licensed under a Creative Commons Attribution license (
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What is MAUNA LOA? What does MAUNA LOA mean? MAUNA LOA meaning, definition & explanation
✪✪✪✪✪ ✪✪✪✪✪
What is MAUNA LOA? What does MAUNA LOA mean? MAUNA LOA meaning, definition & explanation. MAUNA LOA meaning - MAUNA LOA definition - MAUNA LOA explanation.
Source: Wikipedia.org article, adapted under license.
Mauna Loa is one of five volcanoes that form the Island of Hawaii in the U.S. state of Hawai‘i in the Pacific Ocean. The largest subaerial volcano in both mass and volume, Mauna Loa has historically been considered the largest volcano on Earth. It is an active shield volcano with relatively gentle slopes, with a volume estimated at approximately 18,000 cubic miles (75,000 km3), although its peak is about 120 feet (37 m) lower than that of its neighbor, Mauna Kea. Lava eruptions from Mauna Loa are silica-poor and very fluid, and they tend to be non-explosive.
Mauna Loa has probably been erupting for at least 700,000 years, and may have emerged above sea level about 400,000 years ago. The oldest-known dated rocks are not older than 200,000 years. The volcano's magma comes from the Hawaii hotspot, which has been responsible for the creation of the Hawaiian island chain over tens of millions of years. The slow drift of the Pacific Plate will eventually carry Mauna Loa away from the hotspot within 500,000 to one million years from now, at which point it will become extinct.
Mauna Loa's most recent eruption occurred from March 24 to April 15, 1984. No recent eruptions of the volcano have caused fatalities, but eruptions in 1926 and 1950 destroyed villages, and the city of Hilo is partly built on lava flows from the late 19th century. Because of the potential hazards it poses to population centers, Mauna Loa is part of the Decade Volcanoes program, which encourages studies of the world's most dangerous volcanoes. Mauna Loa has been monitored intensively by the Hawaiian Volcano Observatory since 1912. Observations of the atmosphere are undertaken at the Mauna Loa Observatory, and of the Sun at the Mauna Loa Solar Observatory, both located near the mountain's summit. Hawaii Volcanoes National Park covers the summit and the southeastern flank of the volcano, and also incorporates Kilauea, a separate volcano.
Hilo, Hawaii - Liliʻuokalani Park and Gardens (2018)
Liliʻuokalani Park and Gardens is a 24.14-acre (97,700 m2) park with Japanese gardens, located on Banyan Drive in Hilo on the island of Hawaiʻi.
The park's site was donated by Queen Liliʻuokalani, and lies southeast of downtown Hilo, on the Waiakea Peninsula in Hilo Bay. Much of the park now consists of Edo-style Japanese gardens, built 1917-1919, and said to be the largest such gardens outside Japan. The gardens contain Waihonu Pond as well as bridges, ponds, pagodas, statues, torii, and a Japanese teahouse.
Included in the park is the small island called Moku ola, (also known as Coconut Island), connected to the park by a footbridge. It is a good place for a picnic, and some limited swimming. The name Moku ola literally means island of life in the Hawaiian language, since it was site of an ancient temple dedicated to healing. There is a stone tower on the east side of the island which is the remnant of the old footbridge which was destroyed by a tsunami. From Coconut Island one has a great view of Hilo Bayfront, Downtown Hilo, and the rest of Hilo Bay. To the east, you can see the massive breakwater protecting Hilo Bay. It is located at coordinates 19°43′36″N 155°4′6″W. It is maintained by the County of Hawaii and non-profit Friends of Liliuokalani Gardens.
The park is a popular location for public events, exercise, and dog-walking.
Hilo is the largest settlement and census-designated place (CDP) in Hawaii County, Hawaii, United States, which encompasses the Island of Hawaiʻi. The population was 43,263 at the 2010 census.
Hilo is the county seat of the County of Hawaiʻi and is in the District of South Hilo. The town overlooks Hilo Bay, at the base of two shield volcanoes, Mauna Loa, an active volcano, and Mauna Kea, a dormant volcano and the site of some of the world's most important ground-based astronomical observatories. Much of the city is at some risk from lava flows from Mauna Loa. The majority of human settlement in Hilo stretches from Hilo Bay to Waiākea-Uka, on the flanks of Mauna Loa.
Hilo is home to the University of Hawaiʻi at Hilo, ʻImiloa Astronomy Center of Hawaiʻi, as well as the Merrie Monarch Festival, a week-long celebration of ancient and modern hula that takes place annually after Easter. Hilo is also home to the Mauna Loa Macadamia Nut Corporation, one of the world's leading producers of macadamia nuts. The town is served by Hilo International Airport.
Day Hike to Mauna Loa Volcano Summit
(time stamps below)
What a grand day! I executed a day hike (nearly 13 miles) to/from the summit of Mauna Loa, the largest volcano on our planet. I spent the day discerning between You can't do this, and You shouldn't do this. Sometimes you just need to get outside, to go within.
I began the journey long before dawn, starting from home at 1,000ft above sea level, in order to provide adequate acclimation time for the climb to 13,677ft/4,169m. I stopped at Mauna Kea State Recreation Area, at 6,500 feet, to begin acclimating. Then I poked along to Mauna Loa Observatory Road—turn is beside Pu'u Huluhulu. Then at about 9,000ft, I stopped to acclimate more. I then proceeded to the weather station. My foot hit the trail about 7:30am. I will remember this day, forever.
This video contains images and footage of my hike: from acclimating with the dawn to sharing a meal with the summit. I hope this video may help give anyone interested an idea of the terrain, but be aware, the conditions can be unexpected. These images and footage may offer a sample of the wonder and beauty, but they merely suggest the awe within which I remain enraptured. I will refer to this video, myself, as a chronicle of the day, for my inner smile’s benefit; if it helps anyone else to prepare for the same hike, or to experience it vicariously, then I'm grateful.
???? I made the mistake of losing track of time at the summit, and was faced with making my way down the slope in the dark. (I had a head lamp, but I don't recommend doing any of this trek in the dark!) Though it was beautiful with a sky so full of stars, it's not advisable.
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*Source cited:
“The enormous volcano covers half of the Island of Hawai‘i and by itself amounts to about 85 percent of the area of all the other Hawaiian Islands combined.”
To stay in the summit cabin:
Mauna Kea Recreation Area:
Fun fact: Hawaii's Mauna Kea Wekiu bug relies on a diet of insects blown up to elevation.
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Time markers:
1:21 Acclimating at 9000’
2:27 Arriving at the MLO, at the end of the road
3:01 On the jeep trail from the MLO to the foot trail head
3:45 Starting on the foot trail
6:27 Arriving at the first large ahu markers, denoting wind shelters, large collapsed lava tube
6:57 A survey benchmark near a large splatter cone
8:20 The trail takes a sharp turn to the left/east (sign marks it)
8:29 Entering service road for a bit
9:45 Depart service road, back onto foot path—one that’s smoother
11:07 Back onto pahoehoe lava flow
11:53 North Pit rim in sight, with large ahu
11:55 Jaggar’s “Cave”
12:45 The path forks to the summit cabin on the east side of the rim (and to the longer southern route up Mauna Loa), to the summit on the west side, and the Observatory Path back down the way we came.
13:56 Jumping over a large fissure/crevasse (I think from the 1940s flow)
15:30 Note on not disturbing HVO science stations
16:03 At a great overlook
18:05 Continuing onto the true summit
18:19 At the summit ahu/cairn
18:52 Summit survey benchmark
20:51 Makeshift pit toilet seen, back near the North Pit, where the paths first forked
20:58 Racing the sun
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Fun facts:
--Mauna Loa contains two isolated ice caves.
1.
2.
3.
--The Mars habitat simulation is on the slope of Mauna Loa (don't attempt to visit location)
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Music used, all from the YouTube library:
1. “Morning Mandolin,” by Chris Haugen
2. “Moultrie’s Madness,” by The 126ers
3. “Flickering,” by VYEN
4. “Beth,” by VYEN
5. “Slowly Until We Get There,” by Joey Pecoraro
6. “The Rising,” by Aakash Gandhi
7. “Surrender,” by Dan Lebowitz
8. “Immortality,” by Aakash Gandhi
Mauna Loa Mountain Climb Hawaii
Tia and I climbed Mauna Loa on the Big Island of Hawaii. This active volcano has been erupting for years.
Mauna Loa stands 13,678 feet above sea level, but most of the mountain is underground.
It doesn't seem as big as it is because of it's gentle slope, which is visible from almost everywhere on the Big Island.
In preparation for this climb I looked all over YouTube for a video which would show me what the actual climb would be like, but I couldn't find anything. I hope this will serve as a good indicator of what the mountain is actually like.
We went in Mid January and while it was sunny, it was also about 35-40 degrees most of the time. Layers is the key thing to remember which climbing Mauna Loa. Not a particularly difficult climb. Only about 15 miles from the observation area.
There are 2 main routes for Mauna Loa.
The first is from the South side and takes a few days to go something like 40+ miles.
The second (what we did) goes from the North side with Mauna Kea at our backs. It's a nice day trip, but watch for altitude sickness.
Have fun and please leave your comments!
Hilo ,beautiful city in Hawaii County, Hawaii, United States prepares for Hurricane Lane
Hilo (/ˌhiːloʊ/; Hawaiian: [ˈhilo]) is the largest settlement and census-designated place (CDP) in Hawaii County, Hawaii, United States, which encompasses the Island of Hawaiʻi. The population was 43,263 at the 2010 census.[1]
Hawaii island
Hilo is the county seat of the County of Hawaiʻi and is located in the District of South Hilo.[2] The town overlooks Hilo Bay, at the base of two shield volcanoes; Mauna Loa, an active volcano, and Mauna Kea, a dormant volcano and the site of some of the world's most important ground-based astronomical observatories. Much of the city is at some risk from lava flows from Mauna Loa. The majority of human settlement in Hilo stretches from Hilo Bay to Waiākea-Uka, on the flanks of Mauna Loa.
Hilo is home to the University of Hawaiʻi at Hilo, ʻImiloa Astronomy Center of Hawaiʻi, as well as the Merrie Monarch Festival, a week-long celebration of ancient and modern hula which takes place annually after Easter. Hilo is also home to the Mauna Loa Macadamia Nut Corporation, one of the world's leading producers of macadamia nuts. The town is served by Hilo International Airport.[3]
Hurricane Lane 4
Current storm status
Category 4 hurricane (1-min mean)
Lane 2018-08-22 0230Z.tiff
Satellite image
14E 2018 5day.png
Forecast map
As of: 2:00 a.m. HST August 22 (12:00 UTC August 22)
Location: 14.5°N 154.0°W ± 20 nm
About 375 mi (605 km) SSE of Kailua-Kona, Hawaii
About 535 mi (860 km) SE of Honolulu, Hawaii
Sustained winds: 135 kt (155 mph; 250 km/h) (1-min mean)
gusting to 170 kt (195 mph; 315 km/h)
Pressure: 935 mbar (hPa; 27.61 inHg)
Movement: WNW at 8 kt (9 mph; 14 km/h)
See more detailed information.
Hurricane Lane is currently a very powerful tropical cyclone approaching the Hawaiian Islands, the strongest hurricane in the central Pacific since Ioke in 2006, and the first Category 5 Pacific hurricane since Patricia in 2015. The twelfth named storm, sixth hurricane, and fourth major hurricane of the 2018 Pacific hurricane season, Lane originated from a tropical wave that began producing disorganized thunderstorm activity several hundred miles off the southern coast of Mexico on August 11. Over the next four days, the disturbance gradually strengthened amid favorable weather conditions and formed a tropical depression early on August 15. Twelve hours later, the depression intensified into Tropical Storm Lane. Gradual strengthening occurred for the next day and a half which resulted in Lane reaching hurricane status by August 17. Lane then began a period of rapid intensification, becoming a high-end Category 2 hurricane on the same day. Lane continued to rapidly intensify, reaching Category 4 status twelve hours later. Lane reached its initial peak with winds of 140 mph (220 km/h) and a pressure of 948 mbar (27.99 inHg) on August 18. On August 19, Lane crossed into the Central Pacific basin, where it encountered increasing wind shear, subsequently weakening the storm. However, on August 20, Lane re-intensified into a Category 4 hurricane, and reached Category 5 intensity early on August 22.
Hurricane lane
Contents
1 Meteorological history
1.1 Current storm information
1.1.1 Watches and warnings
2 Preparations
3 See also
4 References
5 External links
Meteorological historytravel,
tourism,
hotels,
hotel,
holiday,
resort,
landmarks,
weather,
economy,
industry,
architecture,
shopping,
museum,
school,
housing,
floods,
storm,
flood,
Banyan Drive
Coconut Island
East Hawaii Cultural Center
Haili Church
Hawaii Tropical Botanical Garden
Hilo Tropical Gardens
Honoliʻi Beach Park
ʻImiloa Astronomy Center of Hawaiʻi
James Kealoha Beach Park
Kalakaua Park
Liliʻuokalani Park and Gardens
Lower Waikakea Mountain Bicycling Park
Lyman Museum
Mauna Loa Macadamia Nut Corporation
Mokupāpapa Discovery Center for Northwestern Hawaii's remote coral reefs[24]
Nani Mau Gardens
Naha Stone (associated with Kamehameha I) in front of the Hilo Public Library
Old Mamalahoa Highway
Pacific Tsunami Museum
Pana'ewa Rainforest Zoo
Prince Kuhio Plaza
Rainbow Falls (Waianuenue) & Boiling Pots on the Wailuku River
University of Hawaiʻi at Hilo Botanical Gardens
Wailoa River State Recreation Area with King Kamehameha Statue
Hawaii Plantation Museum
Media
Hawaii hurricane lane,Lane Hawaii,Hawaii lane,tropical storm Hawaii,Hawaii tropical storm,Hilo,Honolulu,Central pacific,Central pacific tropical storm
Exploring Mauna Kea: tallest volcano in the world!
We did a summit tour of Mauna Kea on the Big Island in Hawaii. It's the tallest volcano in the world!
We toured via Hawaii Forest & Trail. We went stargazing afterwards but it was pretty dark so we couldn't really record anything.
REFERENCES
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Mauna Loa Talk Story With USGS HVO's Frank Trusdell (Jan. 13, 2018)
Mauna Loa North Pit
Short video of Mauna Loa North Pit
Hilo, Hawaii - Hilo Farmers Market (2018)
Hilo is the largest settlement and census-designated place (CDP) in Hawaii County, Hawaii, United States, which encompasses the Island of Hawaiʻi. The population was 43,263 at the 2010 census.
Hilo is the county seat of the County of Hawaiʻi and is in the District of South Hilo. The town overlooks Hilo Bay, at the base of two shield volcanoes, Mauna Loa, an active volcano, and Mauna Kea, a dormant volcano and the site of some of the world's most important ground-based astronomical observatories. Much of the city is at some risk from lava flows from Mauna Loa. The majority of human settlement in Hilo stretches from Hilo Bay to Waiākea-Uka, on the flanks of Mauna Loa.
Hilo is home to the University of Hawaiʻi at Hilo, ʻImiloa Astronomy Center of Hawaiʻi, as well as the Merrie Monarch Festival, a week-long celebration of ancient and modern hula that takes place annually after Easter. Hilo is also home to the Mauna Loa Macadamia Nut Corporation, one of the world's leading producers of macadamia nuts. The town is served by Hilo International Airport.
Mauna Loa Cabin, Big Island, HI
Mauna Loa Cabin, Big Island, HI
Hawaii Volcano Air Tour: Mauna Loa and Mauna Kea volcanoes of the Big Island
Cessna Caravan CE-208 cockpit Hawaii volcano air tour view of Mauna Loa and Mauna Kea volcanoes on the Big Island of Hawaii. These are the two largest volcanoes on the island at nearly 14,000 feet above sea level or aprox. 32,000 feet above sea floor rivaling Everest. The entire Volume of Mauna Loa is about 100 X Everest AND is on a 10 year eruption cycle that last went off in 1984 to threaten Hilo town of 35,000!
My name is Buster and I am a Hawaii air tour, interisland charter flight, and flight instructor pilot based at the Kona International Airport PHKO/KOA in Kilua Kona, Hawaii on the Big Island of Hawaii.
Mauna Loa on Hawaii gets Hurricane Lane, category 5
Mauna Loa on Hawaii gets Hurricane Lane, category 5 travel,
tourism,
This article documents a current hurricane. Information regarding it may change rapidly as more information becomes available; news reports and other primary sources may be unreliable. The last updates to this article may not reflect the most current information about this hurricane for all areas. Please refer to the Central Pacific Hurricane Center for the most up-to-date general information, and to your local weather service or media outlets for the latest weather information pertaining to a specific location. Please feel free to improve this article or discuss changes on the talk page. (Learn how and when to remove this template message)
Hurricane Lane 4
Current storm status
Category 4 hurricane (1-min mean)
Lane 2018-08-22 1200Z.jpg
Satellite image
14E 2018 5day.png
Forecast map
As of: 2:00 a.m. HST August 22 (12:00 UTC August 22)
Location: 14.5°N 154.0°W ± 20 nm
About 375 mi (605 km) SSE of Kailua-Kona, Hawaii
About 535 mi (860 km) SE of Honolulu, Hawaii
Sustained winds: 135 kt (155 mph; 250 km/h) (1-min mean)
gusting to 170 kt (195 mph; 315 km/h)
Pressure: 935 mbar (hPa; 27.61 inHg)
Movement: WNW at 8 kt (9 mph; 14 km/h)
See more detailed information.
Hurricane Lane is a very powerful tropical cyclone currently approaching the Hawaiian Islands, the strongest hurricane in the central Pacific since Ioke in 2006, and the first Category 5 Pacific hurricane since Patricia in 2015. The twelfth named storm, sixth hurricane, and fourth major hurricane of the 2018 Pacific hurricane season, Lane originated from a tropical wave that began producing disorganized thunderstorm activity several hundred miles off the southern coast of Mexico on August 11. Over the next four days, the disturbance gradually strengthened amid favorable weather conditions and formed a tropical depression early on August 15. Twelve hours later, the depression intensified into Tropical Storm Lane. Gradual strengthening occurred for the next day and a half which resulted in Lane reaching hurricane status by August 17.
Mauna Loa Volcano.jpg
Mauna Loa as seen from the air; Hualālai is visible in the background
Highest point
cated in Hawaii (island)Mauna LoaMauna Loa
Hawaii, U.S.
Show map of Hawaii (island)
Show map of Hawaii
Show all
Parent range Hawaiian Islands
Topo map USGS Mauna Loa
Geology
Age of rock 700,000–1 million[2]
Mountain type Shield volcano
Volcanic arc/belt Hawaiian-Emperor seamount chain
Last eruption March–April 1984[2]
Climbing
First ascent Ancient times
Easiest route Ainapo Trail
Mauna Loa (/ˌmɔːnə ˈloʊ.ə/ or /ˌmaʊnə ˈloʊ.ə/; Hawaiian: [ˈmɐwnə ˈlowə]; English: Long Mountain[3]) is one of five volcanoes that form the Island of Hawaii in the U.S. state of Hawaiʻi in the Pacific Ocean. The largest subaerial volcano in both mass and volume, Mauna Loa has historically been considered the largest volcano on Earth, dwarfed only by Tamu Massif. It is an active shield volcano with relatively gentle slopes, with a volume estimated at approximately 18,000 cubic miles (75,000 km3),[4] although its peak is about 120 feet (37 m) lower than that of its neighbor, Mauna Kea. Lava eruptions from Mauna Loa are silica-poor and very fluid, and they tend to be non-explosive.
Mauna Loa has probably been erupting for at least 700,000 years, and may have emerged above sea level about 400,000 years ago. The oldest-known dated rocks are not older than 200,000 years.[5] The volcano's magma comes from the Hawaii hotspot, which has been responsible for the creation of the Hawaiian island chain over tens of millions of years. The slow drift of the Pacific Plate will eventually carry Mauna Loa away from the hotspot within 500,000 to one million years from now, at which point it will become extinct.
Mauna Loa's most recent eruption occurred from March 24 to April 15, 1984. No recent eruptions of the volcano have caused fatalities, but eruptions in 1926 and 1950 destroyed villages, and the city of Hilo is partly built on lava flows from the late 19th century. Because of the potential hazards it poses to population centers, Mauna Loa is part of the Decade Volcanoes program, which encourages studies of the world's most dangerous volcanoes. Mauna Loa has been monitored intensively by the Hawaiian Volcano Observatory since 1912. Observations of the atmosphere are undertaken at the Mauna Loa Observatory, and of the Sun at the Mauna Loa Solar Observatory, both located near the mountain's summit. Hawaii Volcanoes National Park covers the summit and the southeastern flank of the volcano, and also incorporates Kīlauea, a separate volcano.