Pak Rovicky, Memang menarik untuk memahami seri kejadian gempa di singkawang lalu.
Terkait pertanyaan pak Rovicky, mengenai tektonik atau vulkanik mudah untuk memastikannya karena yg vulkanik biasanya bukan doubel couple. Setuju sekali dengan pak Danny, bahwa di bagian stabil dari blok sunda seperti di Singkawang juga terdapat daerah seismisitas aktif, mungkin terkait sesar aktif. Karena apabila sekilas memperhatikan peta topografi disana terdapat banyak kelurusan utara-selatan, walaupun perlu pengamatan yang skalanya lokal untuk memastikan adanya sesar aktif. nuhun, irwan meilano > > 2011/8/26 Rovicky Dwi Putrohari <rovi...@gmail.com>: >> Kang Danny, >> Konfirmasi saja, jadi goyangan ini bisa dipastikan gempa. Nah apakah >> tetonik atau vulkanik apakah dapat dipastikan. Misalnya patahan >> dangkal atau gempa dalam. Atau mungkinkah itu merupakan paleo suture >> yang terreaktifasi atau malah strain-stress lama yg lambat >> terlepaskan. >> Saya sepakat dg statement kang Danny, bahwa tidak ada tempat yg "bebas >> gempa" didunia ini. >> >> Btw, semalam ada acara di discovery ttg gempa2 dunia, trutama san >> fransisco yg bencana dan korban utamanya justru akibat kebakaran gas >> dimana air hydrant-nya terputus sewaktu gempa. Jadi ingat bahwa >> goyangan tidak membunuh langsung tapi akibat2 sampingan yg perlu >> dipikirkan. Termasuk longsoran, bendungan dll. Ini yg perlu kita >> perhatikan. >> >> Salam >> >> Rdp >> >> On 26/08/2011, Danny Hilman Natawidjaja <danny.hil...@gmail.com> wrote: >>> Gempa di Singkawang ini memang cukup langka karena wilayah Kalimantan timur >>> adalah termasuk zona yang sangat rendah seismisitasnya (karena cukup jauh >>> dari batas lempeng). Namun hal itu TIDAK berarti kalTim bebas gempa. >>> Mungkin tidak ada lokasi di dunia yang bisa dibilang benar-benar bebas gempa >>> (karena walau bagaimanapun pasti ada akumulasi strain juga meskipun sangat >>> perlahan-lahan). Wilayah lain dengan kondisi geologi dan (aktif) tektonik >>> yang mirip atau se-level seismisitasnya dengan Singkawang adalah Benua >>> Australia dan Amerika bagian Timur. Terbukti bahwa di Australia-pun cukup >>> banyak kejadian gempa yang tercatat bahkan ada yang mencapai skala magnitude >>> 7. Di Amerika Timur malah ada yang mencapai skala M 7.7 - M8.0 yaitu gempa >>> New Madrid tahun 1812. Uniknya, hanya beberapa jam setelah gempa Singkawang >>> kemarin di wilayah Virginia (sebelah Timur New Madrid) juga terjadi gempa >>> dengan kekuatan M5.8. Gempa Virginia yang cukup bikin geger Gedung Putih >>> itu dan gempa Singkawang dua-duanya termasuk gempa yang sangat langka. >>> >>> Salam, >>> Danny >>> >>> -----Original Message----- >>> From: Rovicky Dwi Putrohari [mailto:rovi...@gmail.com] >>> Sent: Friday, August 26, 2011 10:09 AM >>> To: IAGI; Forum HAGI >>> Subject: [iagi-net-l] Gempa Singkawang (?) >>> >>> Kmarin ada brita cukup aneh ttg gempa di Kalimantan (Singkawang, Pontianak). >>> Adakah penjelasan geologinya ? >>> >>> Salam >>> Rdp >>> >>> -- >>> Sent from my mobile device >>> >>> *"Everybody is safety leader, You can stop any unsafe operation !"* >>> >>> ---------------------------------------------------------------------------- >>> ---- >>> PP-IAGI 2008-2011: >>> ketua umum: LAMBOK HUTASOIT, lam...@gc.itb.ac.id >>> sekjen: MOHAMMAD SYAIFUL, mohammadsyai...@gmail.com >>> * 2 sekretariat (Jkt & Bdg), 5 departemen, banyak biro... >>> ---------------------------------------------------------------------------- >>> ---- >>> Ayo siapkan diri....!!!!! >>> Hadirilah Joint Convention Makassar (JCM), HAGI-IAGI, Sulawesi, 26-29 >>> September 2011 >>> ---------------------------------------------------------------------------- >>> - >>> To unsubscribe, send email to: iagi-net-unsubscribe[at]iagi.or.id >>> To subscribe, send email to: iagi-net-subscribe[at]iagi.or.id >>> >>> For topics not directly related to Geology, users are advised to post the >>> email to: o...@iagi.or.id >>> >>> Visit IAGI Website: http://iagi.or.id >>> Pembayaran iuran anggota ditujukan ke: >>> Bank Mandiri Cab. Wisma Alia Jakarta >>> No. Rek: 123 0085005314 >>> Atas nama: Ikatan Ahli Geologi Indonesia (IAGI) >>> Bank BCA KCP. Manara Mulia >>> No. Rekening: 255-1088580 >>> A/n: Shinta Damayanti >>> IAGI-net Archive 1: http://www.mail-archive.com/iagi-net%40iagi.or.id/ >>> IAGI-net Archive 2: http://groups.yahoo.com/group/iagi >>> --------------------------------------------------------------------- >>> DISCLAIMER: IAGI disclaims all warranties with regard to information posted >>> on its mailing lists, whether posted by IAGI or others. In no event shall >>> IAGI or its members be liable for any, including but not limited to direct >>> or indirect damages, or damages of any kind whatsoever, resulting from loss >>> of use, data or profits, arising out of or in connection with the use of any >>> information posted on IAGI mailing list. >>> --------------------------------------------------------------------- >>> >>> >>> -------------------------------------------------------------------------------- >>> PP-IAGI 2008-2011: >>> ketua umum: LAMBOK HUTASOIT, lam...@gc.itb.ac.id >>> sekjen: MOHAMMAD SYAIFUL, mohammadsyai...@gmail.com >>> * 2 sekretariat (Jkt & Bdg), 5 departemen, banyak biro... >>> -------------------------------------------------------------------------------- >>> Ayo siapkan diri....!!!!! >>> Hadirilah Joint Convention Makassar (JCM), HAGI-IAGI, Sulawesi, 26-29 >>> September 2011 >>> ----------------------------------------------------------------------------- >>> To unsubscribe, send email to: iagi-net-unsubscribe[at]iagi.or.id >>> To subscribe, send email to: iagi-net-subscribe[at]iagi.or.id >>> >>> For topics not directly related to Geology, users are advised to post the >>> email to: o...@iagi.or.id >>> >>> Visit IAGI Website: http://iagi.or.id >>> Pembayaran iuran anggota ditujukan ke: >>> Bank Mandiri Cab. Wisma Alia Jakarta >>> No. Rek: 123 0085005314 >>> Atas nama: Ikatan Ahli Geologi Indonesia (IAGI) >>> Bank BCA KCP. Manara Mulia >>> No. Rekening: 255-1088580 >>> A/n: Shinta Damayanti >>> IAGI-net Archive 1: http://www.mail-archive.com/iagi-net%40iagi.or.id/ >>> IAGI-net Archive 2: http://groups.yahoo.com/group/iagi >>> --------------------------------------------------------------------- >>> DISCLAIMER: IAGI disclaims all warranties with regard to information posted >>> on its mailing lists, whether posted by IAGI or others. In no event shall >>> IAGI or its members be liable for any, including but not limited to direct >>> or indirect damages, or damages of any kind whatsoever, resulting from loss >>> of use, data or profits, arising out of or in connection with the use of any >>> information posted on IAGI mailing list. >>> --------------------------------------------------------------------- >>> >>> >> >> -- >> Sent from my mobile device >> >> *"Everybody is safety leader, You can stop any unsafe operation !"* >> >> -------------------------------------------------------------------------------- >> PP-IAGI 2008-2011: >> ketua umum: LAMBOK HUTASOIT, lam...@gc.itb.ac.id >> sekjen: MOHAMMAD SYAIFUL, mohammadsyai...@gmail.com >> * 2 sekretariat (Jkt & Bdg), 5 departemen, banyak biro... >> -------------------------------------------------------------------------------- >> Ayo siapkan diri....!!!!! >> Hadirilah Joint Convention Makassar (JCM), HAGI-IAGI, Sulawesi, 26-29 >> September 2011 >> ----------------------------------------------------------------------------- >> To unsubscribe, send email to: iagi-net-unsubscribe[at]iagi.or.id >> To subscribe, send email to: iagi-net-subscribe[at]iagi.or.id >> >> For topics not directly related to Geology, users are advised to post the >> email to: o...@iagi.or.id >> >> Visit IAGI Website: http://iagi.or.id >> Pembayaran iuran anggota ditujukan ke: >> Bank Mandiri Cab. Wisma Alia Jakarta >> No. Rek: 123 0085005314 >> Atas nama: Ikatan Ahli Geologi Indonesia (IAGI) >> Bank BCA KCP. Manara Mulia >> No. Rekening: 255-1088580 >> A/n: Shinta Damayanti >> IAGI-net Archive 1: http://www.mail-archive.com/iagi-net%40iagi.or.id/ >> IAGI-net Archive 2: http://groups.yahoo.com/group/iagi >> --------------------------------------------------------------------- >> DISCLAIMER: IAGI disclaims all warranties with regard to information posted >> on its mailing lists, whether posted by IAGI or others. In no event shall >> IAGI or its members be liable for any, including but not limited to direct >> or indirect damages, or damages of any kind whatsoever, resulting from loss >> of use, data or profits, arising out of or in connection with the use of any >> information posted on IAGI mailing list. >> --------------------------------------------------------------------- >> >> > -------------------------------------------------------------------------------- PP-IAGI 2008-2011: ketua umum: LAMBOK HUTASOIT, lam...@gc.itb.ac.id sekjen: MOHAMMAD SYAIFUL, mohammadsyai...@gmail.com * 2 sekretariat (Jkt & Bdg), 5 departemen, banyak biro... -------------------------------------------------------------------------------- Ayo siapkan diri....!!!!! Hadirilah Joint Convention Makassar (JCM), HAGI-IAGI, Sulawesi, 26-29 September 2011 ----------------------------------------------------------------------------- To unsubscribe, send email to: iagi-net-unsubscribe[at]iagi.or.id To subscribe, send email to: iagi-net-subscribe[at]iagi.or.id For topics not directly related to Geology, users are advised to post the email to: o...@iagi.or.id Visit IAGI Website: http://iagi.or.id Pembayaran iuran anggota ditujukan ke: Bank Mandiri Cab. Wisma Alia Jakarta No. Rek: 123 0085005314 Atas nama: Ikatan Ahli Geologi Indonesia (IAGI) Bank BCA KCP. Manara Mulia No. Rekening: 255-1088580 A/n: Shinta Damayanti IAGI-net Archive 1: http://www.mail-archive.com/iagi-net%40iagi.or.id/ IAGI-net Archive 2: http://groups.yahoo.com/group/iagi --------------------------------------------------------------------- DISCLAIMER: IAGI disclaims all warranties with regard to information posted on its mailing lists, whether posted by IAGI or others. In no event shall IAGI or its members be liable for any, including but not limited to direct or indirect damages, or damages of any kind whatsoever, resulting from loss of use, data or profits, arising out of or in connection with the use of any information posted on IAGI mailing list. ---------------------------------------------------------------------
