Saturday, 3 March 2018

Magnitude 5.2 Earthquake off the west coast of North Sumatra.

The United States Geological Survey recorded a Magnitude 5.2 Earthquake at a depth of about 71 km, about 25 km off the west coast of North Sumatra Province, Indonesia slightly after 10.15 am Western Indonesian Time (slightly after 3.15 am GMT) on Thursday 1 March 2018. There are no reports of any damage or casualties associated with this quake, but people have reported feeling it around the city of Padangsidempuan in North Sumatra.

The approximate location of the 1 March 2018 North Sumatra Earthquake. USGS.

The Indo-Australian Plate, which underlies the Indian Ocean to the west of Sumatra, is being subducted beneath the Sunda Plate, a breakaway part of the Eurasian Plate which underlies Sumatra and neighbouring Java, along the Sunda Trench, passing under Sumatra, where friction between the two plates can cause Earthquakes. As the Indo-Australian Plate sinks further into the Earth it is partially melted and some of the melted material rises through the overlying Sunda Plate as magma, fuelling the volcanoes of Sumatra.

The Subduction zone beneath Sumatra. NASA/Earth Observatory.

This does not happen at a 90° angle, as occurs in the subduction zones along the western margins of North and South America, but at a steeply oblique angle. This means that as well as the subduction of the Indo-Australian plate beneath the Sunda, the two plates are also moving past one-another. This causes rifting within the plates, as parts of each plate become stuck to the other, and are dragged along in the opposing plate's direction. The most obvious example of this is the Sumatran Fault, which runs the length of Sumatra, with the two halves of the island moving independently of one-another. This fault is the cause of most of the quakes on the island, and most of the island's volcanoes lie on it.

The movement of the tectonic plates around Sumatra. NASA/Earth Observatory.
  
Witness accounts of Earthquakes can help geologists to understand these events, and the structures that cause them. The international non-profit organisation Earthquake Report is interested in hearing from people who may have felt this event; if you felt this quake then you can report it to Earthquake Report here.
 
See also...
 
http://sciencythoughts.blogspot.co.uk/2018/02/eruption-on-mount-sinabung-sumatra.htmlhttp://sciencythoughts.blogspot.co.uk/2017/08/eruptions-on-mount-sinabung-lead-to.html
http://sciencythoughts.blogspot.co.uk/2017/07/german-tourist-found-dead-on-sumatran.htmlhttp://sciencythoughts.blogspot.co.uk/2017/01/magnitude-57-earthquake-in-north-sumatra.html
http://sciencythoughts.blogspot.co.uk/2016/05/pyroclastic-flow-kills-at-least-seven.htmlhttp://sciencythoughts.blogspot.co.uk/2016/05/seventeen-students-confirmed-dead-after.html
Follow Sciency Thoughts on Facebook.

4 comments:

  1. ASS..WR.WB.SAYA PAK RESKY TKI BRUNAY DARUSALAM INGIN BERTERIMA KASIH BANYAK KEPADA EYANG WORO MANGGOLO,YANG SUDAH MEMBANTU ORANG TUA SAYA KARNA SELAMA INI ORANG TUA SAYA SEDANG TERLILIT HUTANG YANG BANYAK,BERKAT BANTUAN AKI SEKARAN ORANG TUA SAYA SUDAH BISA MELUNASI SEMUA HUTAN2NYA,DAN SAWAH YANG DULUNYA SEMPAT DI GADAIKAN SEKARAN ALHAMDULILLAH SUDAH BISA DI TEBUS KEMBALI,ITU SEMUA ATAS BANTUAN EYANG WORO MANGGOLO MEMBERIKAN ANGKA RITUALNYA KEPADA KAMI DAN TIDAK DI SANGKA SANGKA TERNYATA BERHASIL,BAGI ANDA YANG INGIN DIBANTU SAMA SEPERTI KAMI SILAHKAN HUBUNGI NO HP EYANG WORO MANGGOLO (0823-9177-2208) JANGAN ANDA RAGU ANGKA RITUAL EYANG WORO MANGGOLO SELALU TEPAT DAN TERBUKTI INI BUKAN REKAYASA SAYA SUDAH MEMBUKTIKAN NYA TERIMAH KASIH
    NO HP EYANG WORO MANGGOLO (0823-9177-2208)
    BUTUH ANGKA GHOIB HASIL RTUAL EYANG WORO MANGGOLO
    DIJAMIN TIDAK MENGECEWAKAN ANDA APAPUN ANDA MINTA INSYA ALLAH PASTI DIKABULKAN BERGAUNLAH SECEPATNYA BERSAMA KAMI JANGAN SAMPAI ANDA MENYESAL
    angka;GHOIB: singapura
    angka;GHOIB: hongkong
    angka;GHOIB; malaysia
    angka;GHOIB; toto magnum
    angka”GHOIB; laos…
    angka”GHOIB; macau
    angka”GHOIB; sidney
    angka”GHOIB: vietnam
    angka”GHOIB: korea
    angka”GHOIB: brunei
    angka”GHOIB: china
    angka”GHOIB: thailand

    ReplyDelete
    Replies
    1. KAMI SEKELUARGA TAK LUPA MENGUCAPKAN PUJI SYUKUR KEPADA ALLAH S,W,T
      DAN TERIMAH KASIH BANYAK AKI ATAS BANTUAN NOMOR TOGEL NYA,YANG AKI BERIKAN.4D,(7504) ALHAMDULILLAH TERNYATA ITU BENAR2 TEMBUS AKI,DAN ALHAMDULILLAH SEKARANG SAYA BISA MELUNASI SEMUA HUTANG2 SAYA YANG ADA SAMA TETANGGA.DAN JUGA BANK BRI DAN BUKAN HANYA ITU AKI.INSYA ALLAH SAYA AKAN COBA UNTUK MEMBUKA USAHA SENDIRI DEMI MENGCUKUPI KEBUTUHAN KELUARGA SAYA SEHARI-HARI ITU SEMUA BERKAT BANTUAN AKI..SEKALI LAGI MAKASIH BANYAK  YA AKI, BAGI SAUDARA YANG SUKA MAIN TOGEL YANG INGIN MERUBAH  NASIB SEPERTI SAYA SILAHKAN HBG AKI SOLEH,Dl NO: _082_313_336_747_INSYA ALLAH ANDA BISA SEPERTI SAYA MENANG TOGEL 275,JUTA,DI JAMIN 100% JEBOL SAYA SUDAH BUKTIKAN SENDIRI,
      APABILAH ADA  WSKTU
      SILAHKAN HBG: AKI SOLEH DI NO: _082_313_336_747_
       KLIK DISINI
      Atau Chat/Tlpn di WhatsApp (WA)
      No WA Aki : 082313336747
      *Angka Ghaib; Singapura
      *Angka Ghaib; Hongkong
      *Angka Ghaib; Toto malaysia
      *Angka Ghaib; Keputusan Magnum
      *Angka Ghaib; Toto Kuda
      *Angka Ghaib; Kambodia
      *Angka Ghaib; Sydney
      *Angka Ghaib; Laos

      Delete
  2. perkenalkan nama saya Sahra. saya berasal dari kota Reog Ponorogo saya pernah bekerja sebagai seorang karyawan di salah satu restaurant di dubai. dimana saya sudah hampir kurang lebih 5 tahun lamanya saya bekerja di restaurant tersebut.

    Keinginan saya dan impian saya yang paling tinggi adalah ingin mempunyai usaha sendiri di kampung, namun jika hanya mengandalkan gaji yah mungkin butuh waktu yang sangat lama dimana belum biaya kontrakan dan utan yang menumpuk justru akan semakin sulit dan semakin lama impian itu tidak akan terwujud

    saya coba" buka internet dan saya lihat postingan teman di https://pesugihanputihislamia.blogspot.com. Saya buka di google dan disitulah awal kesuksesan saya sampai sekarang alhamdulillah ya allah...

    jika anda ingin mendapat jalan yang mudah untuk mendapat kesuksesan seperti saya anda tak perlu ragu. atau malu dikejar hutang lagi, Tergantung keyakinan dan kepercayaan saja. Banyak pilihan di berikan yaitu Dana Hibah, penglaris usaha dagan, dana gaib, anka gaib togel, jampi pelet, dll

    Kini saya berbagi pengalaman saja sudah saya rasakan dan buktikan. Atau mungkin ada teman mau hubungi langsung beliau ini nomer WhatsApp nya 0822 9127 7145 Semoga bermanfaat. aminn...

    ReplyDelete
  3. ALL THANKS TO UPSTART LOAN AM NOW FINANCIALLY STABLE . upstartloan@yahoo.com
    I am Michelle Huxford from Casper, Wyoming. I was in a very chronic financial issue and terminal health situation some few weeks back. After all my search for assistance from friends and neighbors proved abortive, I feel there was no one who truly cares. I became so emaciated due to lack of good food and my 2 kids age 5 and 8 were not also good looking due to lack of proper care as a result of finance. One faithful morning I saw an old time friend of my late husband and I told him all I have been going through and he said the only way he could help was to direct me to a good loan agency that also helped him, He explained to me on how he was financially down and how he got boosted by this loan agency UPSTART LOAN INC ( upstartloan@yahoo.com ) who grant him 245,000 USD loan at an affordable rate. He further assured me that they were the only legit loan firm he found in the quest of seeking for loan after been scammed by various fake loan lenders online. He gave me their email: upstartloan@yahoo.com or text/call (574) 301-1639, That was how i applied and was also granted a loan and my life changed for the good. CONTACT THE ONLY GENUINE LENDERS( UPSTART LOAN INC) VIA email: upstartloan@yahoo.com or call +1 (574) 301-1639 to resolve your financial mess.

    ReplyDelete