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The 1868 Hawaii earthquake was the largest recorded in the history of Hawaiʻi island, with an estimated magnitude of 7.9 on the Richter scale, which caused a landslide and tsunami that led to 77 deaths.
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On April 1, 1946, an earthquake with a reported magnitude of 7.8 occurred in the Aleutian Islands off Alaska. Almost five hours later, at 7 a.m., the largest and most destructive tsunami waves in reported history struck Hawaii, killing 159 people.
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A tornado of unknown intensity touched down in Honolulu County; it tracked for 3 miles and caused an estimated $25,000 in damages.
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The earthquake measured 7.2 on the Moment magnitude scale, and was felt across several of the Hawaiian Islands.
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Hurricane Iwa hit the islands of Niihau, Kauai and Oahu on November 23, 1982. It was a Category 1 hurricane and was the strongest hurricane to hit Hawaii since 1859.
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Such basalt lava flows erupted at Kilauea Volcano on Hawaii’s Big Island between 1983 and 1993, destroying almost 200 nearby homes and covering the coast highway on the island’s southeastern shore.
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In October 2004 a flash flood in Manoa Valley on Oahu soaked the ground floor of the University of Hawaii Library. It also damaged at least 60 homes and caused over $1 million worth of damage.
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In March 2006, a six-week rain period caused flooding in many places in Hawaii. On Kauai, it caused a dam break killing seven people. On Oahu, the rain caused sewer systems to overflow, resulting in a sewage spill that polluted parts of the island’s south shore.
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On October 15, 2006 a 6.7 magnitude earthquake struck Hawaii. It could be felt up to 170 miles away from the center of the epicenter.
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A tornadic waterspout associated with a supercell thunderstorm moved ashore on Lanikai Beach. The tornado, rated an EF-0, tracked inland for 1.5 miles, reaching the Enchanted Lakes subdivision of Kailua
