{"id":9905,"date":"2021-08-13T17:34:42","date_gmt":"2021-08-14T01:34:42","guid":{"rendered":"http:\/\/earthjay.com\/?p=9905"},"modified":"2021-08-13T17:34:42","modified_gmt":"2021-08-14T01:34:42","slug":"earthquake-report-south-sandwich-islands","status":"publish","type":"post","link":"https:\/\/earthjay.com\/?p=9905","title":{"rendered":"Earthquake Report Lite: South Sandwich Islands"},"content":{"rendered":"<p>I don\u2019t always have the time to write a proper Earthquake Report. However, I prepare interpretive posters for these events.<br \/>\n<a href=\"https:\/\/earthquake.usgs.gov\/earthquakes\/eventpage\/us6000f53e\/executive\" rel=\"noopener\" target=\"_blank\">https:\/\/earthquake.usgs.gov\/earthquakes\/eventpage\/us6000f53e\/executive<\/a><br \/>\nBecause of this, I present Earthquake Report Lite. (but it is more than just water, like the adult beverage that claims otherwise). I will try to describe the figures included in the poster, but sometimes I will simply post the poster here.<\/p>\n<h2><font color=\"orange\">Below is my interpretive poster for this earthquake<\/font><\/h2>\n<ul>\n<li>I plot the seismicity from the past month, with diameter representing magnitude (see legend). I include earthquake epicenters from 1921-2021 with magnitudes M \u2265 3.0 in one version. <\/li>\n<li>I plot the USGS fault plane solutions (moment tensors in blue and focal mechanisms in orange), possibly in addition to some relevant historic earthquakes. <\/li>\n<li>A review of the basic base map variations and data that I use for the interpretive posters can be found on the <a href=\"http:\/\/earthjay.com\/?page_id=3218\" rel=\"noopener\" target=\"_blank\">Earthquake Reports page<\/a>. I have improved these posters over time and some of this background information applies to the older posters.<\/li>\n<li>Some basic fundamentals of earthquake geology and plate tectonics can be found on the <a href=\"http:\/\/earthjay.com\/?page_id=8202\" rel=\"noopener noreferrer\" target=\"_blank\">Earthquake Plate Tectonic Fundamentals page<\/a>.<\/li>\n<\/ul>\n<ul>\n<h3><font color=\"orange\">I include some inset figures. <\/font><\/h3>\n<li>In the upper left corner is a small scale plate tectonic map showing the major plate boundaries.<\/li>\n<\/ul>\n<ul>\n<li>Here is the map with 3 month&#8217;s (and a week&#8217;s) seismicity plotted.<\/li>\n<p><a href=\"http:\/\/earthjay.com\/earthquakes\/20210812_sandwich_islands\/20210812_sandwich_isles_interpretation_20210813_02.pdf\" rel=\"noopener\" target=\"_blank\"><br \/>\n<img decoding=\"async\" src=\"http:\/\/earthjay.com\/earthquakes\/20210812_sandwich_islands\/20210812_sandwich_isles_interpretation_20210813_02.jpg\" width=\"100%\" alt=\"\" \/><\/a>\n<\/ul>\n<h2><font color=\"orange\">Seismicity Cross Sections<\/font><\/h2>\n<ul>\n<li>Here is a map and cross section of the aftershocks.<\/li>\n<p><a href=\"http:\/\/earthjay.com\/earthquakes\/20210812_sandwich_islands\/20210812_sandwich_cross_section_interpretation.pdf\" rel=\"noopener\" target=\"_blank\"><br \/>\n<img decoding=\"async\" src=\"http:\/\/earthjay.com\/earthquakes\/20210812_sandwich_islands\/20210812_sandwich_cross_section_interpretation.jpg\" width=\"100%\" alt=\"\" \/><\/a>\n<\/ul>\n<h2><font color=\"orange\">Tide Gage Data<\/font><\/h2>\n<ul>\n<li>Here are plot of the tide gage data from nearby gages.<\/li>\n<p><a href=\"http:\/\/earthjay.com\/earthquakes\/20210812_sandwich_islands\/tide_gage_plots_20210812_sandwich_isles_king_edwards_20210813.pdf\" rel=\"noopener\" target=\"_blank\"><br \/>\n<img decoding=\"async\" src=\"http:\/\/earthjay.com\/earthquakes\/20210812_sandwich_islands\/tide_gage_plots_20210812_sandwich_isles_king_edwards_20210813.jpg\" width=\"100%\" alt=\"\" \/><\/a><br \/>\n<a href=\"http:\/\/earthjay.com\/earthquakes\/20210812_sandwich_islands\/tide_gage_plots_20210812_sandwich_isles_antarctica_20210813.pdf\" rel=\"noopener\" target=\"_blank\"><br \/>\n<img decoding=\"async\" src=\"http:\/\/earthjay.com\/earthquakes\/20210812_sandwich_islands\/tide_gage_plots_20210812_sandwich_isles_antarctica_20210813.jpg\" width=\"100%\" alt=\"\" \/><\/a>\n<\/ul>\n<ul>\n<h2> <strong><font color=orange>Scotia | Sandwich (MMMMM)<\/font><\/strong><\/h2>\n<h3>General Overview<\/h3>\n<h3>Earthquake Reports<\/h3>\n<li>2021.08.12 <a href=\"http:\/\/earthjay.com\/?p=9905\">M 8.2 South Sandwich Islands<\/a><\/li>\n<li>2016.08.19 <a href=\"http:\/\/earthjay.com\/?p=4216\">M 7.4 Scotia plate<\/a><\/li>\n<li>2015.05.25 <a href=\"http:\/\/earthjay.com\/?p=2522\">M 5.8 Sandwich Islands<\/a><\/li>\n<li>2015.02.16 <a href=\"http:\/\/earthjay.com\/?p=2158\">M 6.2 Scotia subduction zone<\/a><\/li>\n<li>2014.03.12 <a href=\"http:\/\/earthjay.com\/?p=1376\">M 6.4 south Sandwich Islands<\/a><\/li>\n<li>2013.11.17 <a href=\"http:\/\/earthjay.com\/?p=1108\">M 6.8 Scotia Sea<\/a><\/li>\n<li>2013.11.17 <a href=\"http:\/\/earthjay.com\/?p=1112\">M 7.8 Scotia Sea<\/a><\/li>\n<li>2013.11.25 <a href=\"http:\/\/earthjay.com\/?p=1151\">M 7.0 Scotia Sea<\/a><\/li>\n<\/ul>\n<\/ul>\n<ul>\n<h2><strong><font color=\"orange\">References:<\/font><\/strong><\/h2>\n<h3>Basic &#038; General References<\/h3>\n<li>Frisch, W., Meschede, M., Blakey, R., 2011. Plate Tectonics, Springer-Verlag, London, 213 pp.<\/li>\n<li>Hayes, G., 2018, Slab2 &#8211; A Comprehensive Subduction Zone Geometry Model: U.S. Geological Survey data release, <a href=\"https:\/\/doi.org\/10.5066\/F7PV6JNV\" rel=\"noopener\" target=\"_blank\">https:\/\/doi.org\/10.5066\/F7PV6JNV<\/a>.<\/li>\n<li>Holt, W. E., C. Kreemer, A. J. Haines, L. Estey, C. Meertens, G. Blewitt, and D. Lavallee (2005), Project helps constrain continental dynamics and seismic hazards, Eos Trans. AGU, 86(41), 383\u2013387, , <a href=\"https:\/\/doi.org\/10.1029\/2005EO410002\" rel=\"noopener\" target=\"_blank\"> https:\/\/doi.org\/10.1029\/2005EO410002<\/a>. \/li>\n<li>Jessee, M.A.N., Hamburger, M. W., Allstadt, K., Wald, D. J., Robeson, S. M., Tanyas, H., et al. (2018). A global empirical model for near-real-time assessment of seismically induced landslides. Journal of Geophysical Research: Earth Surface, 123, 1835\u20131859. <a href=\"https:\/\/doi.org\/10.1029\/2017JF004494\" rel=\"noopener\" target=\"_blank\">https:\/\/doi.org\/10.1029\/2017JF004494<\/a><\/li>\n<li>Kreemer, C., J. Haines, W. Holt, G. Blewitt, and D. Lavallee (2000), On the determination of a global strain rate model, Geophys. J. Int., 52(10), 765\u2013770. <\/li>\n<li>Kreemer, C., W. E. Holt, and A. J. Haines (2003), An integrated global model of present-day plate motions and plate boundary deformation, Geophys. J. Int., 154(1), 8\u201334, , <a href=\"https:\/\/doi.org\/10.1046\/j.1365-246X.2003.01917.x\" rel=\"noopener\" target=\"_blank\">https:\/\/doi.org\/10.1046\/j.1365-246X.2003.01917.x<\/a>. <\/li>\n<li>Kreemer, C., G. Blewitt, E.C. Klein, 2014. A geodetic plate motion and Global Strain Rate Model in Geochemistry, Geophysics, Geosystems, v. 15, p. 3849-3889, <a href=\"https:\/\/doi.org\/10.1002\/2014GC005407\" rel=\"noopener\" target=\"_blank\">https:\/\/doi.org\/10.1002\/2014GC005407<\/a>.<\/li>\n<li>Meyer, B., Saltus, R., Chulliat, a., 2017. <a href=\"https:\/\/www.ngdc.noaa.gov\/geomag\/emag2.html\" rel=\"noopener\" target=\"_blank\">EMAG2: Earth Magnetic Anomaly Grid (2-arc-minute resolution) Version <\/a>3. National Centers for Environmental Information, NOAA. Model. <a href=\"https:\/\/doi.org\/10.7289\/V5H70CVX\" rel=\"noopener\" target=\"_blank\">https:\/\/doi.org\/10.7289\/V5H70CVX<\/a><\/li>\n<li>M\u00fcller, R.D., Sdrolias, M., Gaina, C. and Roest, W.R., 2008, <a href=\"http:\/\/www.earthbyte.org\/people\/dietmar\/Pdf\/Muller_etal_age_rate_asym_G3_2008.pdf\" rel=\"noopener\" target=\"_blank\">Age spreading rates and spreading asymmetry of the world&#8217;s ocean crust<\/a> in Geochemistry, Geophysics, Geosystems, 9, Q04006, <a href=\"https:\/\/doi.org\/10.1029\/2007GC001743\" rel=\"noopener\" target=\"_blank\">https:\/\/doi.org\/10.1029\/2007GC001743<\/a><\/li>\n<li>Pagani,M. , J. Garcia-Pelaez, R. Gee, K. Johnson, V. Poggi, R. Styron, G. Weatherill, M. Simionato, D. Vigan\u00f2, L. Danciu, D. Monelli (2018). Global Earthquake Model (GEM) Seismic Hazard Map (version 2018.1 &#8211; December 2018), DOI: 10.13117\/GEM-GLOBAL-SEISMIC-HAZARD-MAP-2018.1<\/li>\n<li>Silva, V ., D Amo-Oduro, A Calderon, J Dabbeek, V Despotaki, L Martins, A Rao, M Simionato, D Vigan\u00f2, C Yepes, A Acevedo, N Horspool, H Crowley, K Jaiswal, M Journeay, M Pittore, 2018. Global Earthquake Model (GEM) Seismic Risk Map (version 2018.1). <a href=\"https:\/\/doi.org\/10.13117\/GEM-GLOBAL-SEISMIC-RISK-MAP-2018.1\" rel=\"noopener noreferrer\" target=\"_blank\">https:\/\/doi.org\/10.13117\/GEM-GLOBAL-SEISMIC-RISK-MAP-2018.1<\/a><\/li>\n<li>Zhu, J., Baise, L. G., Thompson, E. M., 2017, An Updated Geospatial Liquefaction Model for Global Application, Bulletin of the Seismological Society of America, 107, p 1365-1385, <a href=\"https:\/\/doi.org\/0.1785\/0120160198\" rel=\"noopener\" target=\"_blank\">https:\/\/doi.org\/0.1785\/0120160198<\/a><\/li>\n<h3>Specific References<\/h3>\n<\/ul>\n<h2><font color=\"orange\"><strong>Return to the <a href=\"http:\/\/earthjay.com\/?page_id=3218\">Earthquake Reports page<\/a>.<\/font><\/strong><\/h2>\n<ul>\n<li>Sorted by <a href=\"http:\/\/earthjay.com\/?page_id=3219\">Magnitude<\/a><\/li>\n<li>Sorted by <a href=\"http:\/\/earthjay.com\/?page_id=3220\">Year<\/a><\/li>\n<li>Sorted by <a href=\"http:\/\/earthjay.com\/?page_id=9351\">Day of the Year<\/a><\/li>\n<li>Sorted By <a href=\"http:\/\/earthjay.com\/?page_id=3226\">Region<\/a><\/li>\n<\/ul>\n<p><!--\n\u00b0\n\u2265\n\u00d1\n\u00f6\n\u00e1\n\u00b1\n\n<\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"entry-summary\">\nI don\u2019t always have the time to write a proper Earthquake Report. However, I prepare interpretive posters for these events. https:\/\/earthquake.usgs.gov\/earthquakes\/eventpage\/us6000f53e\/executive Because of this, I present Earthquake Report Lite. (but it is more than just water, like the adult beverage&hellip;\n<\/div>\n<div class=\"link-more\"><a href=\"https:\/\/earthjay.com\/?p=9905\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &ldquo;Earthquake Report Lite: South Sandwich Islands&rdquo;<\/span>&hellip;<\/a><\/div>\n","protected":false},"author":3,"featured_media":9906,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"categories":[45,5,6,7,34,38],"tags":[],"aioseo_notices":[],"jetpack_featured_media_url":"https:\/\/earthjay.com\/wp-content\/uploads\/2021\/09\/20210812_sandwich_isles_interpretation_20210813_02-scaled-1.jpg","_links":{"self":[{"href":"https:\/\/earthjay.com\/index.php?rest_route=\/wp\/v2\/posts\/9905"}],"collection":[{"href":"https:\/\/earthjay.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/earthjay.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/earthjay.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/earthjay.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9905"}],"version-history":[{"count":0,"href":"https:\/\/earthjay.com\/index.php?rest_route=\/wp\/v2\/posts\/9905\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/earthjay.com\/index.php?rest_route=\/wp\/v2\/media\/9906"}],"wp:attachment":[{"href":"https:\/\/earthjay.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9905"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/earthjay.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9905"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/earthjay.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9905"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}