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The 1868 Hawaiʻi earthquake was the largest recorded in the history of Hawaiʻi island, [3] with an estimated magnitude of 7.9 M fa [1] and a maximum Mercalli intensity of X (Extreme). The earthquake occurred at 4 p.m. local time on April 2, 1868, and caused a landslide and tsunami that led to 77 deaths.
The most severe damage caused by the earthquake was focused on the north and western sides of the island of Hawaii. Damage was also quite heavy on the eastern side of Maui, and minor damage spread all the way out to western Oʻahu, 170 miles (270 km) away from the earthquake's epicenter.
Significant damage occurred in the southern part of the Big Island totalling $4–4.1 million, and it also triggered a small brief eruption of Kilauea volcano. The event generated a large tsunami that was as high as 47 feet (14 m) on Hawaii'i island and was detected in Alaska, California, Japan, Okinawa, Samoa, and on Johnston and Wake Islands.
A magnitude 4.7 earthquake rattled the Big Island of Hawaii on Thursday ... significant damage and the earthquake did not raise the threat of tsunamis, according to the Pacific Tsunami ...
The latest in a string of powerful earthquakes shook part of the southwestern Pacific on Friday morning, local time, leading to far-reaching tsunami concerns. The magnitude 8.1 earthquake occurred ...
The island's most powerful earthquake since Hawaii became a state was a magnitude 7.7 in 1975, with an epicenter about 27 miles southeast of Hilo. "And that was really devastating.
The tsunami caused twice the damage the tsunami of the 1946 earthquake did. [14] In Hawaii, damage was much more extensive, including two indirect fatalities that occurred when a pilot and photographer were killed while attempting to document the tsunami's arrival from an airplane.
UTC time: 1946-04-01 12:29:01: ISC event: 898313: USGS-ANSSComCat: Local date: April 1, 1946 (): Local time: 02:29: Magnitude: 7.4 M s, 8.6 M w, 9.3 M t: Depth: 15 km (9.3 mi) [1] Epicenter: 1]: Type: Megathrust: Areas affected: Hawaii, Alaska United States: Max. intensity: MMI VI (Strong): Tsunami: Up to 42 m (138 ft) at Unimak Island: Casualties: 165–173 [2]: The 1946 Aleutian Islands ...