Hawaii (island) explained
Hawaiʻi |
Nickname: | The Big Island, Moku o Keawe |
Location: | North Pacific Ocean |
Area Sqmi: | 4028 |
Highest Mount: | Mauna Kea |
Elevation Ft: | 13803 |
Elevation Footnotes: | [1] |
Population: | 200,629 |
Population As Of: | 2020 |
Density Sqmi: | 49.8 |
Country Largest City: | Hilo |
Country: | United States |
Country Admin Divisions 4: | Embedded: | yes | Island: | yes | Flower: | Red Pua Lehua (Hawaiian: ʻOhiʻa blossom) | Color: | Hawaiian: ʻUlaʻula (red) |
|
Rank: | Largest Hawaiian Island |
Timezone1: | Hawaiian Time |
Hawaii (; Hawaiian: '''Hawai{{okina in Hawaiian pronounced as /həˈvɐjʔi/) is the largest island in the United States, located in the eponymous state of Hawaii. It is the southeasternmost of the Hawaiian Islands, a chain of volcanic islands in the North Pacific Ocean. With an area of 4028sqmi, it has 63% of the Hawaiian archipelago's combined landmass. However, it has only 13% of the archipelago's population. The island of Hawaiʻi is the third largest island in Polynesia, behind the north and south islands of New Zealand.[2]
The island is often referred to as the Island of Hawaii or Hawaii Island to distinguish it from the state. It is also referred to as The Big Island, due to its size relative to the other islands. In Hawaiian, the island is sometimes called Moku o Keawe. The word keawe has several meanings. One definition, "southern cross", is said to be the name of an ancient chief.[3] Another definition is "the bearer" (ke-a-we).[4] Hawaii County is the local administrative unit.
As of the 2020 census, the population was 200,629.[5] The county seat and largest town is Hilo. Hawaiʻi County has no incorporated cities.[6]
History
See main article: History of Hawaii.
Hawaii is allegedly named after Hawaiʻiloa, a legendary Polynesian navigator who is said to have discovered the island. Other accounts attribute the name to the legendary realm of Hawaiki, a place from which some Polynesians are said to have originated, the place where they transition to in the afterlife, or the realm of the gods and goddesses. James Cook, the English explorer and navigator who captained the first European expedition to reach the Hawaiian Islands, called it O-Why-hee (from Hawaiian) and the "Sandwich Islands" after his patron, the Earl of Sandwich.[7]
Hawaii was the home island of Paiʻea Kamehameha, later known as Kamehameha the Great. Kamehameha united most of the Hawaiian islands under his rule in 1795, after several years of war, and gave the kingdom and the island chain the name of his native island.[8] In 1822, missionary William Ellis arrived and was one of a party that completed a tour of the island, descriptions of which were later published in his journal.[9]
Geology and geography
According to the U.S. Census Bureau, the county has a total area of, of which is land and (20.8%) is water.[10] The county's land area comprises 62.7 percent of the state's land area. It is the highest percentage by any county in the United States. Delaware's Sussex County comes in second at 48.0 percent, while Rhode Island's Providence County is third at 39.6 percent.
At its greatest dimension, the island is across. Measured from its sea floor base to its highest peak, Mauna Kea at is the world's tallest mountain, taller than even Mount Everest, since the base of Mount Everest is above sea level.[11]
Ka Lae, the southernmost point in the 50 states of the United States, is on Hawaii. The nearest landfall to the south is the Line Islands. To the northwest of the island of Hawaii is the island of Maui, whose Haleakalā volcano is visible from Hawaii across the Alenuihaha Channel.
Volcanism
The island of Hawaiʻi is built from five separate shield volcanoes that erupted somewhat sequentially, one overlapping the other. These are (from oldest to youngest):[12]
Geological evidence from exposures of old surfaces on the south and west flanks of Mauna Loa led to the proposal that two ancient volcanic shields (named Ninole and Kulani) were all but buried by the younger Mauna Loa.[13] Geologists now consider these "outcrops" to be part of Mauna Loa.
Based on geochemical (including trace elements) and isotope differences in their eruptive products, Hawaiian volcanoes fall into two families. The differences are believed due to their separate magma systems. Hualālai and Mauna Loa are members of one family, while Kohala, Mauna Kea, and Kilauea are members of the other.[14]
Because Mauna Loa and Kīlauea are active volcanoes, the island is growing. Between January 1983 and September 2002, lava flows added 543acres to the island. Lava flowing from Kīlauea destroyed several towns, including Kapoho in 1960 and again in 2018, and Kalapana and Kaimū in 1990. In 1987 lava filled in "Queen's Bath", a large, L-shaped, freshwater pool in the Kalapana area.[15] Another 875 acres were added between May and July, 2018 by the 2018 lower Puna eruption.[16] [17] Mauna Loa erupted in 2022, 38 years after the prior activity.[18]
Some geologists also count two undersea volcanoes in the base of the island.[19] Māhukona off the northwest corner of the island has eroded below the ocean surface.[20] Kamaʻehuakanaloa (formerly Lōʻihi) is under water 35km (22miles) southeast of Hawaii. It is an erupting seamount that has grown to reach 3200feet below the ocean surface, and it is forecast to break the surface in 10,000 to 100,000 years.[21]
Great Crack
See also: Koa'e Fault Zone.
The Great Crack is an 8miles, 60feet and 60feet fissure in the island, in the district of Ka'u. According to the United States Geological Survey (USGS), the Great Crack is the result of crustal dilation from magmatic intrusions into the southwest rift zone of Kilauea.[22] While neither the earthquake of 1868 nor that of 1975 caused a measurable change in the Great Crack, lava welled out of its lower 10km (10miles) in 1823.
Trails, rock walls, and archaeological sites from as old as the 12th century exist near the Great Crack. In August 2018, the National Park Service purchased nearly of private land adjacent to Hawaii Volcanoes National Park, claiming that the area had important geological features to be studied and preserved.[23]
Hilina Slump
See main article: Hilina Slump. The Hilina Slump is a 4760cumi section of the south slope of Kīlauea that is moving away from the island. Between 1990 and 1993, Global Positioning System (GPS) measurements showed a southward displacement of about 10cm (00inches) per year.[24] Undersea measurements show a "bench" that has formed a buttress and that this buttress may tend to reduce the likelihood of catastrophic detachment.[25] [26]
Earthquakes and tsunamis
See also: List of earthquakes in Hawaii. On 2 April 1868, an earthquake with a magnitude estimated between 7.25 and 7.9 rocked the southeast coast of Hawaii. This was the most destructive earthquake in the Hawaii's recorded history.[27] It triggered a landslide on Mauna Loa, 5miles north of Pahala, killing 31 people. A tsunami claimed 46 more lives. The villages of Punaluʻu, Nīnole, Kawaʻa, Honuʻapo, and Keauhou Landing were severely damaged. The tsunami reportedly rolled over the tops of the coconut trees up to 60feet high, and it reached inland a distance of a quarter of a mile (400 meters) in some places.[28]
On 29 November 1975, a 37miles section of the Hilina Slump dropped 11.5feet and slid 26feet toward the ocean. This movement caused a 7.2 magnitude earthquake and a 48feet tsunami. Oceanfront property was washed off its foundations in Punaluu. Two deaths were reported at Halape, and 19 other people were injured.[29]
The island suffered damage from a tsunami caused by earthquakes in Alaska on 1 April 1946, and in Chile on 23 May 1960. Downtown Hilo was damaged by both tsunamis, with many lives lost. Just north of Hilo, Laupāhoehoe lost 16 schoolchildren and five teachers in the tsunami of 1946.[30]
In March 2011, a 9.0 magnitude earthquake off the east coast of Japan again created a tsunami that caused minor damage in Hawaii. The estimated damage to public buildings was about US$3 million.[31] In the Kona area this tsunami washed a house into Kealakekua Bay, destroyed a yacht club and tour boat offices in Keauhou Bay, caused extensive damage in Kailua Kona, flooded the ground floor of the King Kamehameha Hotel,[32] and temporarily closed the Kona Village Resort.[33]
In early May 2018, hundreds of small earthquakes were detected on Kīlauea's East rift zone, leading officials to issue evacuation warnings. On 3 May 2018, the volcano erupted in Puna after a 5.0 earthquake earlier in the day, causing evacuations of Leilani Estates and Lanipuna Gardens subdivisions.[34] [35] A seemingly related 5.3 magnitude quake and a subsequent 6.9 magnitude earthquake occurred on 4 May.[36] [37]
Volcanic fog
Vog (volcanic fog) can envelop the island of Hawaii when Kilauea is active. Since the termination of volcanic activity in September 2018, vog has largely disappeared on the west side of the island.[38] The gas plumes created a blanket of vog that the trade winds mostly deflect toward the Kona coast. Vog can damage the health of plants, humans, and other animals. Most of the aerosols are acidic and of a size where they can remain in the lungs to damage them. Flu-like symptoms and general lethargy are reported, and are especially pronounced in people with respiratory conditions.[39] [40] [41] [42]
National protected areas
The island hosts many specialized ecosystems/microclimates, including many protected by federal designation:
Economy
Sugarcane was the backbone of the island economy for more than a century. In the mid-20th century, sugarcane plantations began to downsize, and in 1995 the island's last plantation closed.[43]
Most of the island's economy depends on tourism, centered primarily in resort areas on the western coast of the island in the North Kona and South Kohala districts. Sustainable tourism is increasing.[44]
Diversified agriculture is a growth sector. Major crops include macadamia nuts, papaya, flowers, tropical and temperate vegetables, aquaculture, and coffee beans. The island's orchid production is the state's largest.[45] The island is home to one of the United States' largest cattle ranches: Parker Ranch, on 175000acres in Waimea.
The island is known for astronomy, with numerous telescopes positioned on the summit of Mauna Kea at the Mauna Kea Observatories, where atmospheric clarity is excellent and little light pollution intrudes.[46] Astronomy has become somewhat controversial, given accusations of mismanagement by the observatory manager, the University of Hawaii. The proposed addition of the Thirty Meter Telescope generated protests that stalled the project and led to the transfer of management responsibility to a Governor-appointed body.[47]
NELHA (Natural Energy Laboratory of Hawaii Authority), a 675acres state developed site, is a green economic development ocean science and technology park on the west side of the island. It provides resources and facilities for energy and ocean-related research, education, and commercial activities in an environmentally sound and culturally sensitive manner. Business tenants on this coastal site include microalgae farms, aquaculture, solar technology and marine biotech. Tenants have access to three sets of pipelines delivering deep-sea water from a depth of up to, as well as pristine sea surface water and almost constant sunshine. A 2012 study by the University of Hawaiʻi Economic Research Organization reported that the total economic impact of activities at NELHA was $87.7 million and created 583 jobs.[48]
Transportation
Roads
Three routes connect the two major towns, Hilo on the east coast and Kailua-Kona on the west coast:[49]
State highways 270 (Kawaihae – Hawi) and 180 (the "Kona coffee road", connect Honalo to State highway 190), South Point Road (Highway 11 to South Point), etc.
The three Hawaii Scenic Byways are:
- Mamalahoa Kona Heritage Center
- Royal Footsteps Along the Kona Coast
- Kaʻu Scenic Byway – The Slopes of Mauna Loa
Rental car offices are at the international airports. Taxi service is also available. Island-wide bus service is provided by the Hele-On Bus.[50]
Airports
Two commercial airports serve Hawaiʻi Island:
The private airports are:
Seaports
The major commercial ports are Hilo on the east side and Kawaihae on the west side. Cruise ships often stop at Kailua-Kona (90 times in 2017)[51] and Hilo (108 times in 2017).[52]
Tourism
Places of interest
Hotels on the east coast
The larger hotels on the east coast are:
Hotels on the west coast
The larger hotels on the west coast, from north (Puako) to south (Captain Cook):
Maps
See also
External links
Notes and References
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