January 31 – Lieutenant governor Shan Tsutsui abruptly resigns to accept a job with a political strategy firm.[3] Attorney general Doug Chin is named his successor after Senate President Ron Kouchi and House Speaker Scott Saiki decline to accept the position.[4][5]
April 13 – 2018 Hawaiʻi floods: Heavy rainfall on the islands of Kauaʻi and Oʻahu causes widespread flash flooding and landslides, resulting in $125 million in property damage.[7][8][9]
May 3 –
2018 lower Puna eruption: Kīlauea on Hawaiʻi Island begins erupting in the residential neighborhood of Leilani Estates.[10] Over 700 homes are destroyed by the end of the eruption on September 5.[11][12] The end of the eruption in Puna is also the first time in 35 years that Kīlauea is not erupting.[13]
August 22 – Hurricane Lane causes heavy rainfall and widespread flooding across the entire state,[16][17] and contributed to a wildfire in Kauaula Valley on Maui.[18][19]
September 12 – Hurricane Olivia becomes the first named storm in recorded history to make landfall on the island of Maui.[20]
October 8 – 2,700 union members of UNITE HERE Local 5 employed at four hotels on Oʻahu and one hotel on Maui go on strike as part of the nationwide 2018 Marriott Hotels strike.[21] The strike in Hawaiʻi ends after union members ratify a new contract on November 27.[22]
^Grube, Nick; Yerton, Stewart; Honore, Marcel (January 13, 2018). "False Missile Threat Mistakenly Triggered As Part Of Internal Drill". Honolulu Civil Beat. Retrieved September 29, 2024.
^"Fear. Panic. And tears. For 38 minutes, Hawaii thought it was under attack". Hawaii News Now. January 13, 2018. Retrieved September 29, 2024.
^Blair, Chad (January 29, 2018). "Tsutsui Stepping Down As Hawaii Lieutenant Governor". Honolulu Civil Beat. Retrieved September 29, 2024.
^Eagle, Nathan (February 2, 2018). "Chin To Serve As Lieutenant Governor While Running For Congress". Honolulu Civil Beat. Retrieved September 29, 2024.
^Kalani, Nanea (February 3, 2018). "Chin is sworn in as lieutenant governor". Honolulu Star-Advertiser. ProQuest 1993736339. Retrieved September 29, 2024.
^Almasy, Steve; Jackson, Amanda (February 14, 2018). "Scary landing after United flight loses engine cover". CNN. Retrieved October 1, 2024.
^Lyte, Brittany (April 18, 2018). "Reality Sets In For Kauai's Flooded-Out Residents". Honolulu Civil Beat. Retrieved September 29, 2024.
^Nakaso, Dan (April 17, 2018). "Garden Island a muddy mess". Honolulu Star-Advertiser. ProQuest 2026325550. Retrieved September 29, 2024.
^Bernardo, Rosemarie; Wu, Nina (April 17, 2018). "With a little help, East Oahu cleans up after flash flood wallops area". Honolulu Star-Advertiser. ProQuest 2026325411. Retrieved September 29, 2024.
^Hiraishi, Kuʻuwehi (May 14, 2018). "A Tour of Leilani Estates". Hawaiʻi Public Radio. Retrieved September 29, 2024.
^Dayton, Kevin (September 6, 2018). "Hawaii County officials seek millions in lava aid". Honolulu Star-Advertiser. ProQuest 2103696049. Retrieved September 29, 2024.
^U.S. Geological Survey (November 24, 2023). "2018 lower East Rift Zone Eruption and Summit Collapse at Kīlauea". USGS.gov. Retrieved September 29, 2024.
^Hanna, Jason (December 5, 2018). "Kilauea has been erupting nearly continuously since 1983. Now it may have stopped". CNN. Retrieved September 29, 2024.
^"Honolulu Condos Must Comply Now With New Fire Safety Rules". Honolulu Civil Beat. December 6, 2018. Retrieved September 29, 2024.
^"City Council Bill 69 (2017)". www4.honolulu.gov. February 5, 2018. Retrieved September 29, 2024.
^Armstrong, Jason. "Big Island: Dozens Rescued After 40-Plus Inches Of Rain". Honolulu Civil Beat. Retrieved September 29, 2024.
^Thiessen, Mark (August 26, 2018). "Lane brought record rain to Hawaii, but lost its wallop". APnews.com. Retrieved September 29, 2024.
^Harriman-Pote, Savannah (August 9, 2023). "Hawaiʻi may see more wildfires when hurricanes bypass the islands". Hawaiʻi Public Radio. Retrieved September 29, 2024.
^Nugent, Alison D.; Longman, Ryan J.; Trauernicht, Clay; Lucas, Matthew P.; Diaz, Henry F.; Giambelluca, Thomas W. (2020). "Fire and Rain: The Legacy of Hurricane Lane in Hawaiʻi". Bulletin of the American Meteorological Society. 101 (6). American Meteorological Society: E954 –E967. doi:10.1175/bams-d-19-0104.1. hdl:10125/69378. ISSN 0003-0007.
^Gomes, Andrew (September 13, 2018). "Olivia makes brief but historic landfall on Maui". Honolulu Star-Advertiser. ProQuest 2103489537. Retrieved September 29, 2024.
^Yerton, Stewart (October 8, 2018). "2,700 Workers Strike At Popular Waikiki Hotels". Honolulu Civil Beat. Retrieved September 29, 2024.
^Hofschneider, Anita (November 27, 2018). "Hawaii Hotels And Union Reach Agreement On Contract". Honolulu Civil Beat. Retrieved September 29, 2024.
^"Smith leads Louisiana Tech past Hawaii 31-14 in Hawaii Bowl". ESPN.com. Associated Press. December 22, 2018. Retrieved September 29, 2024.
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