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1998 Papua New Guinea earthquake : ウィキペディア英語版 | 1998 Papua New Guinea earthquake
The 1998 Papua New Guinea earthquake took place on July 17 with a moment magnitude of 7.0 and a maximum Mercalli intensity of VIII (''Severe''). The event occurred on a reverse fault near the north coast region of Papua New Guinea, from the coast near Aitape, and caused a large undersea landslide which caused a tsunami that hit the coast, killing at least 2,183 people. == Earthquake ==
The earthquake occurred at 6:49pm local time (UTC+10) along the boundary of the Australia and the Pacific tectonic plates. The tsunami was originally thought to have been caused by a vertical drop in the Pacific Plate along a long fault. Later work suggested that in fact a massive underwater landslide had occurred. The tsunami raised awareness among scientists of the potential for small earthquakes to trigger large tsunamis, if they cause undersea landslides. It is now recognised that such events can be very dangerous, as the earthquake may be too small to be felt on land, or detected by the Pacific Tsunami Warning Center. Any resulting tsunami can thus appear without warning.
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