Views:4 Author:Site Editor Publish Time: 2018-02-26 Origin:Site
A powerful 7.5-magnitude earthquake struck Papua New Guinea early on Monday (Feb 26), officials said.
The quake hit PNG's mountainous interior .The quake's epicentre was around 90 kilometers (55 miles) south of Porgera in Enga province, according to the US Geological Survey, and hit at a depth of 35 kilometers. Fortunately,US scientists said there was no tsunami threat .
However ,USGS said some casualties and damage were possible and recent earthquakes in the area had caused landslides.
It said homes in the region were "a mix of vulnerable and earthquake resistant construction".
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Structural insulated panels (SIPs for short) also called sandwich board is earthquake proof material, which has a three-layered structure consisting of sheets of structural boards, and insulation layer between them. All the details of such panels are glued together by hot pressing.
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