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The 2004 Indian Ocean earthquake came just three days after a magnitude 8.1 earthquake in the sub-antarctic Auckland Islands, an uninhabited region west of New Zealand, and Macquarie Island to Australia's north. This is unusual since earthquakes of magnitude eight or more occur only about once per year on average. [43]
The earthquake itself, with a moment magnitude of around 9.2-9.3, devastated Aceh Province, Indonesia, while the tsunami affected countries all around the Indian Ocean. Nations which were affected are listed below in alphabetical order. For detailed information about each country affected by the earthquake and tsunami, see their individual ...
The PTWC issued a third Tsunami Information Bulletin for this event, informing the Pacific that small sea level fluctuations from the Indian Ocean tsunami were being observed in the Pacific, it is assumed caused by energy that was wrapped around the south of Australia.
The humanitarian response to the 2004 Indian Ocean earthquake of a magnitude of 9.1 was prompted by one of the worst natural disasters of modern times. On December 26, 2004, the earthquake , which struck off the northwest coast of the Indonesian island of Sumatra , generated a tsunami that wreaked havoc along much of the rim of the Indian Ocean.
A warning system for the Indian Ocean was prompted by the 2004 Indian Ocean earthquake and resulting tsunami, which left approximately 250,000 people dead or missing. Many analysts claimed that the disaster would have been mitigated if there had been an effective warning system in place, citing the well-established Hawaii-based Pacific Tsunami Warning Center, which operates in the Pacific Ocean.
Operation Sumatra Assist was the Australian Defence Force's (ADFs) contribution to disaster relief in Indonesia following the 2004 Indian Ocean earthquake. ADF personnel were deployed within hours of the earthquake. They served mainly in Aceh.
Western Australia: Canning Basin: 1975-10-03 6.2 Part of a sequence of c. 25 quakes of magnitude 5.0 or greater in the Canning Basin area of northern Western Australia between 1970 and 1982 [27] Victoria: Balliang: 1977-12-02 4.7 1 Felt strongly in Geelong and across the suburbs of Melbourne, caused minor damage in the Anakie area. [29] Western ...
[9]: 4648 Recent studies, and evidence from seismic events such as the 2012 Indian Ocean earthquakes, suggest that the Indo-Australian plate may have already broken up into two or three separate plates due primarily to stresses induced by the collision of the Indo-Australian plate with Eurasia along what later became the Himalayas, [10] [11 ...