So now we have it. A full map of the caldera of underwater #Tonga #volcano Hunga-Tonga Hunga-Ha’apai. And wow is it deep! Its base is 850m below sea-level. Prior to the eruption, the caldera bottom was at a water depth of 150m. @scronin70 @tongaportal
A spate of small tsunamis around the world that followed the January 15 eruption of the Hunga Tonga-Hunga Ha‘apai volcano in Tonga has helped earth scientists solve a 139-year-old mystery about Krakatoa. @SquigglyVolcano reports:
It was an extraordinary event by any measure. Many thought the ferocity of the eruption at Hunga-Tonga Hunga-Ha'apai on 15 January would have ripped the volcano apart. But it is astonishingly intact. @niwa_nz @seabed2030 @InfoSEAKIT @NipponF_pr
When the Hunga-Tonga-Hunga-Ha'apai volcano erupted, it caused pressure disturbances that led to winds of up to 450 mph to reach space. #FOX13
TSUNAMI SATELLITE FOOTAGE: The U.S. West Coast and Alaska were put on tsunami alert on Saturday after the Hunga Tonga-Hunga Ha’apai volcano eruption, which can be seen from space in these images from Japan’s Himawari satellite.
The eruption on the uninhabited volcanic island of Hunga-Tonga-Hunga-Ha’apai was so powerful that its impact was felt in Fiji and New Zealand and coastlines were flooded from Japan to California
The newly formed island, unofficially known as Hunga Tonga-Hunga Ha'apai, was initially projected to last a few months. Now it has a 6- to 30-year lease on life, according to a new NASA study.