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Southern Perú coseismic subsidence: 23 June 2001 8.4-Mw earthquakeL. Ocola (Copernicus GmbH, 2008-01-01)The 23-June-2001 8.4-Mw magnitude earthquake partially filled the 1868-seismic-gap in southern Perú. This earthquake produced a thrust faulting dislocation with a rupture that started at about ~200 km SE from the 1996&apos;s Nazca earthquake epicenter, and stopped near Ilo, at about 300 km from the epicenter, near a positive gravity anomaly offshore Ilo. The 23-June-2001-earthquake dislocation zone is under the Arequipa sedimentary Basin. Pre- and post-seismic GPS measurements at Camaná and Ilo at SIRGAS-GPS points (SIRGAS: Sistema de Referencia Geocéntrico para América del Sur) and the average sea level pre- and post-seismic event at Mollendo tide gauge provide evidence of a regional subsidence of southern Perú, with 84 cm at Camaná, 16 cm at Ilo, and 15 cm at Mollendo. Field surveys post earthquake document significant subsidence in Camaná resort beaches. Results of a simple dislocation modelling of 23-June-2001 earthquake agree reasonably well with the observed data. However, the coseismic subsidence of southern Perú is at variance with the regional uplift of southern Perú based on Neotectonic studies. This fact, suggests that, in recent geological times, the magnitude of the secular uplift due to tectonic plate converge has been larger than the coseismic deformation recovery.
A Topical Index to Astronomy Articles in <i>Scientific American</i> Magazine 1999–2009<vcard>BEGIN:vCard\nVERSION:3.0\nFN:Andrew Fraknoi\nTITLE:\nORG:Foothill College\nADR;TYPE=WORK,POSTAL,PARCEL:;;Astronomy Program;12345 El Monte Rd;Los Altos Hills;CA;94022;US\nTEL;TYPE=:+\nTEL;TYPE=:+\nTEL;TYPE=FAX:+\nEMAIL;TYPE=INTERNET,Business:email@example.com\nEMAIL;TYPE=INTERNET,Organization:Fraknoi@admin.fhda.edu\nEND:vCard</vcard>; <vcard>BEGIN:vCard\nVERSION:3.0\nORG:Astronomical Society of the Pacific\nADR;TYPE=WORK,POSTAL,PARCEL:;;390 Ashton Avenue;;San Francisco;CA;94112;US\nTEL;TYPE=Business:+415 337 1100\nTEL;TYPE=:+\nTEL;TYPE=FAX:+415 337 5205\nEMAIL;TYPE=INTERNET,Business:firstname.lastname@example.org\nEMAIL;TYPE=INTERNET,Webmaster:email@example.com\nEND:vCard</vcard>This resource is an annotated listing of articles relating to astronomy in <i>Scientific American</i> magazine for the past ten years, compiled as a service to the astronomy community by the Astronomical Society of the Pacific. It is organized into 32 topics for ease of use by both teachers and learners. <i>Scientific American</i> is a monthly periodical devoted to reporting and interpreting new developments in science and technology for general audiences. It is one of the oldest continuously published magazines in the United States.
Center for Educational Resources (CERES) Project<vcard>BEGIN:vCard\nVERSION:3.0\nFN:George Tuthill\nTITLE:\nORG:Montana State University-Bozeman\nADR; TYPE=WORK,POSTAL,PARCEL:; University of Montana; PO Box 173840; Bozeman; MT; 59717-3840; US\nTEL; TYPE=Business:+406-994-6177\nTEL; TYPE=Organization:+406-994-3113\nTEL; et al.This is the portal for CERES, an extensive library of on-line and interactive K-12 science education materials for teaching astronomy. The site also contains web based lessons that integrate digital NASA resources, data, and images, several on-line NASA data search engines and two graduate level distance learning courses, available over the internet to K-12 teachers.