Comment on “Quick Estimation of the Magnitude and Epicentral Distance Using the P Wave for Earthquakes in Iran” by Reza Heidari

Article Commentary| May 04, 2021 Comment on “Quick Estimation of the Magnitude and Epicentral Distance Using the P Wave for Earthquakes in Iran” by Reza Heidari Sahar Nazeri; Sahar Nazeri 1Department of Physics, University of Naples Federico II, Naples, Italy https://orcid.org/0000-0001-9205-6092 Search for other works by this author on: GSW Google Scholar Jamaledin Baniamerian; Jamaledin Baniamerian * 2Department of Earth Sciences, College of Sciences and Modern Technologies, Graduate University of Advanced Technology, Kerman, Iran *Corresponding author: j.baniamerian@kgut.ac.ir https://orcid.org/0000-0002-8496-3714 Search for other works by this author on: GSW Google Scholar Zaher Hossein Shomali Zaher Hossein Shomali 3Institute of Geophysics, University of Tehran, Tehran, Iran4Department of Earth Sciences, Uppsala University, Uppsala, Sweden https://orcid.org/0000-0001-6254-7560 Search for other works by this author on: GSW Google Scholar Bulletin of the Seismological Society of America (2021) 111 (3): 1661–1662. https://doi.org/10.1785/0120200167 Article history first online: 04 May 2021 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Sahar Nazeri, Jamaledin Baniamerian, Zaher Hossein Shomali; Comment on “Quick Estimation of the Magnitude and Epicentral Distance Using the P Wave for Earthquakes in Iran” by Reza Heidari. Bulletin of the Seismological Society of America 2021;; 111 (3): 1661–1662. doi: https://doi.org/10.1785/0120200167 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyBulletin of the Seismological Society of America Search Advanced Search Heidari (2016) studied the B−Δ methodology to rapidly estimate epicentral distance and earthquake magnitude employing 17 large earthquakes that occurred between 2002 and 2013 in Iran for use in an earthquake early warning system around the Tehran region. In the B−Δ approach, the epicentral distance (⁠Δ⁠, as unknown and dependent parameter) is estimated from the initial slope (coefficient B⁠, as known and independent parameter) of the acceleration waveform in a logarithm scale. Routinely, coefficient B results from a curve fitting, that is, regression, in the form of y=B... You do not have access to this content, please speak to your institutional administrator if you feel you should have access.