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On March 4, 2021, nearly 5 months before the Alaska mainshock, an 8.1 magnitude earthquake struck the Kermadec Islands, [51] a sparsely populated territory owned by New Zealand, and another equally sized event struck the Sub-Antarctic British territory of the South Sandwich Islands on August 12 of that year. [52]
Off the east coast of the North Island of New Zealand -37.563 179.444 0 7.3 M w (USGS) Centred 174km NE of Gisborne, New Zealand, at a depth of 20.8km. [9] March 4, 2021 17:41 Kermadec Islands, New Zealand see 2021 Kermadec Islands earthquakes-29.665 -177.834 0 7.4 M w (USGS) Centred 970km NNE of 'Ohonua, ʻEua, Tonga, at a depth of 53.1km. [10 ...
Nearly 75% of the U.S., including Alaska and Hawaii, could experience a damaging earthquake sometime within the next century, USGS study finds.
GeoNet also forecasts earthquake aftershocks for major earthquakes, such as the 2016 Kaikōura earthquake. [3] The GeoNet app sends notifications about natural hazards to its users. An example of this is the 2016 Kaikōura earthquake, where the app had sent a total of over 109 million notifications within two days. [ 4 ]
Of the three remote islands, only Adak Island, with a population of about 300 people, is inhabited. Nine quakes measuring at least magnitude 5.0 struck on or near the islands and in a cluster offshore to the south Sunday morning and afternoon, according to the Alaska Earthquake Center.
A tsunami warning was issued for southern Alaska on Monday after a major earthquake and large aftershock hit near the Alaskan Peninsula. The warning was later downgraded to an advisory by the ...
A 7.7 magnitude earthquake caused a small tsunami to wash ashore on South Pacific islands Friday. Waves 60 centimeters (2 feet) above tide level were measured off Lenakel, a port town in Vanuatu ...
The 2021 Kermadec Islands earthquakes were a series of earthquakes with magnitudes of 8.1 and 7.4 that occurred at 19:28:31 UTC on 4 March 2021. The epicentres were located southeast of Raoul Island in the Kermadec Islands, part of the New Zealand outlying islands. [6]