Experts urged to ratify Minamata Convention to phase out mercury-added products পারদযুক্ত পণ্যের ব্যবহার বন্ধে মিনামাতা কনভেনশন অনুমোদনের আহ্বান সেন্টমার্টিন সৈকতে প্লাস্টিকের আগ্রাসন 72 birds die eating pesticide-treated masakalai Educate girls to save the planet শিশুর সর্দি-কাশি সারানোর ঘরোয়া উপায় 50 Books All Kids Should Read Before They’re 12 24 thousand under 5 children die of pneumonia in Bangladesh annually গ্রিনহাউস গ্যাস কমানোর লক্ষ্যে নানা উদ্যোগ Maldives: Eco-friendly product export destination for Bangladesh

Why Sulawesi’s tsunami is puzzling scientists


Friday's catastrophic tsunami event on Sulawesi Island is a puzzle.

As the emergency response gathers pace, scientists are scratching their heads to understand why it generated such big waves.

The magnitude 7.5 quake was certainly large – one of the biggest recorded anywhere on the globe this year.

But it was what geophysicists call a strike-slip event, where the ground breaks horizontally. In this instance, the rock to the east of the fault running up through the island moved northwards relative to the rock to the west.

Strike-slip quakes can cause tsunami events but the 6m-tall waves that crashed ashore at Palu city surprised everyone.

read more: https://www.bbc.com/news/science-environment-45711190

Posted by on Oct 4 2018. Filed under Environmental livelihood, News at Now, News From Roots. You can follow any responses to this entry through the RSS 2.0. You can leave a response or trackback to this entry

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