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The 1989 Newcastle earthquake was an intraplate earthquake that occurred in Newcastle, New South Wales on Thursday 28 December. [2] The shock measured 5.6 on the Richter scale and was one of Australia's most serious natural disasters, killing 13 people and injuring more than 160. The damage bill has been estimated at A$4 billion (or $9.5 ...
[1] [2] [6] The earthquake caused minor structural damage in parts of Melbourne and left one person injured. The earthquake was also felt in New South Wales, Australian Capital Territory, South Australia and Tasmania. [7] The earthquake was substantially stronger than the 1989 Newcastle earthquake that measured 5.6 and killed 13 people. [8]
On 22 January 1988, a sequence of destructive earthquakes measuring 6.2, 6.3, and 6.6 struck southwest of Tennant Creek, Australia which was felt as far north as Darwin and in other regions of the country. The largest event of the sequence was the largest earthquake ever recorded in mainland Australia since records began in 1800. [6]
The main earthquake was followed by aftershocks – a magnitude 3.5 quake at 9:24am, a 4.1 quake at 9:33am, a 2.5 quake at 9:47am and a 3.1 quake at 9:54am. [42] [43] Victoria/South Australia/New South Wales: Murrayville: 2021-10-08 4.9 V Felt in Murrayville. [44] Western Australia: Marble Bar: 2021-11-13 5.3 VI
A magnitude 6.6 earthquake struck just over 200 km west-southwest of Broome during the afternoon of the 14 July 2019 at a depth of 10 km. [29] While it is tied for largest earthquake in Australian waters and was felt widely across northern Western Australia the isolation of the quake meant only superficial damage was reported in Broome [30]
In its most general sense, the word earthquake is used to describe any seismic event that generates seismic waves. Earthquakes can occur naturally or be induced by human activities, such as mining, fracking, and nuclear tests. The initial point of rupture is called the hypocenter or focus, while the ground level directly above it is the epicenter.
Basic geological regions of Australia, by age. The geology of Australia includes virtually all known rock types, spanning a geological time period of over 3.8 billion years, including some of the oldest rocks on earth. Australia is a continent situated on the Indo-Australian Plate.
The Australian plate, which Australia is on, is moving faster than other plates. The Australian plate is moving about 6.9 cm (2.7 inches) a year in a northward direction and with a small clockwise rotation. The Global Positioning System must be updated due to the movement, as some locations move faster. [13] [14] [15]