Theworld ’s tall mountainis a little short after the fresh - named Gorka earthquake thathit Nepal in late April .
The M7.8 Earthquake In Nepal Is go To Be Really , Really Nasty
The Nepal earthquake that shoot just before noon on Saturday , April 26 , 2015 formally has a name : it ’s the Gorkha seism . The sudden slip of the architectonic plates during the earthquake literally reshaped the commonwealth . In a continent - continent hit like this one , the domain closest to the defect rupture is uplifted , while the previously - buckled plate interior smacking unconditional , subside in the firing of stress .
Uplift [blue] and subsidence [yellow] from the M7.8 earthquake in Nepal. Image credit:DLR/EOC
The European Space Agency ’s Sentinel-1A orbiter go after both uplift [ blue ] and subsidence [ yellow ] , recording elevation changes of up to 1 meter , and a horizontal north - south shift key of up to 2 meters .
Interferogram identifying areas of change between measurements before and after the Gorka earthquake. Image credit:Copernicus data/ESA/Norut/PPO.labs/COMET–ESA SEOM INSARAP
They ’ve used the same data to createinterferogramsof how the neighborhood has changed in consecutive measurements before and after the earthquake . Each dyed fringe represents about 10 centimeters of displacement . Overall , Kathmandu is little taller and Mount Everest is a bantam bit shorterthan it was a calendar month ago .
miserable weather not only made thing a slight minute more pitiable on the ground , but alsolimited the utility of fly - overs from NASA ’s planet internet .
Cloudy skies have limited the ability of NASA’s satellite network to provide meaningful data for damage assessment. Image credit:NASA
In related word , as part of efforts to increase access to hazard mitigation and risk of infection reduction inquiry , the Seismological Society of America has temporarily spread memory access to their ingathering of article on tectonics , structure , and earthquake history of the Himalayas .
arrest out more ways satellite imagery has been used in the response to the Gorkha earthquake on the American Geophysical Union ’s Trembling Earth .
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