Magnitude 7.9 – 41km WNW of Panguna, Papua New Guinea – January 22, 2017

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USGS Event Page
Magnitude 7.9
41km WNW of Panguna, Papua New Guinea
2017-01-22 04:30:23 UTC
6.214°S   155.122°E
136.0 km depth
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USGS Tectonic Summary:
The January 22nd, 2017, M 7.9 earthquake west of Panguna, Papua New Guinea, occurred as the result of reverse faulting at an intermediate depth (~150 km) beneath the island of Bougainville (North Solomons). At the location of the earthquake, the Australia plate is converging with and subducting beneath the Pacific plate in an east-northeast direction at a rate of approximately 103 mm/yr.

Click here to download an animation which describes how distant earthquakes are recorded on a seismograph:
http://www.iris.edu/hq/inclass/animation/1component_seismogram_building_responds_to_p_s_surface_waves
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