w 8.3 Illapel Earthquake and Tsunami: Numerical and Analytical Approaches MAURICIO FUENTES, 1 SEBASTIA´N RIQUELME,2 GAVIN HAYES,3 MIGUEL MEDINA,1 DIEGO MELGAR,4 GABRIEL VARGAS,5 JOSE´ GONZA´LEZ,5 and ANGELO VILLALOBOS 5 Abstract—The September 16, 2015 Illapel, Chile earthquake triggered a large tsunami, causing both economic losses and fatalities. The region within 400 km of the September 16, 2015 earthquake has hosted 15 other M 7+ earthquakes over the past century. The earthquake was located at 71.654°W and 31.570°S offshore the city of Illapel (Chile) at the depth of 25.0km with the origin time of 22:54:33UT by the United States Geological Survey (USGS). This area was well surveyed by more than 15 high‐rate Global Positioning System (GPS) instruments, installed starting in 2004, and by the new national seismological network deployed in Chile. This subducton zone also hosted the largest earthquake on record, the 1960 M 9.5 earthquake in southern Chile. On 16 September 2015, the Chilean margin produced another great earthquake which nucleated near the coast of the Coquimbo province in central Chile and grew into a rupture with moment magnitude (M W)of8.2(GCMTandGEOFON)to8.3(U.S.GeologicalSurvey,USGS).Theearthquakecausedasizeable September 16, 2015 by Armand Vervaeck and Dr. James Daniell. For more information, … … On 16 September 2015, the M w 8.3 Illapel, Chile, earthquake broke a large area of the Coquimbo region of north-central Chile. Illapel has had: (M1.5 or greater) 0 earthquakes in the past 24 hours 0 earthquakes in the past 7 days; 1 earthquake in the past 30 days; 92 earthquakes in the past 365 days A transoceanic tsunami was generated in the Pacific Ocean on 16 September 2015 following a large M w 8.4 earthquake offshore Illapel, Chile. Le séisme du 16 septembre 2015 au Chili désigne un séisme de magnitude 8,3 ayant frappé le centre du Chili le 16 septembre 2015, aux environs de 23 h UTC [5], [6], [7].Un fort risque de tsunami a aussi été déclaré. The quake caused a tsunami impacting the coast mainly between the towns of Caldera (c. 27°S) and Pichidangui (c. 32°S). Massive deadly earthquake near Illapel (Coquimbo coast), Chile - at least 16 people killed - Pacific Ocean tsunami .

earthquakes. On September 16, 2015, at 22:54:33 UTC (19:54:33 local time), a great earthquake of magnitude 8.3 hit the area, with an epicenter 46 km (29 mi) west of Illapel. On 16 September 2015, the Chilean margin produced another great earthquake which nucleated near the coast of the Coquimbo province in central Chile and grew into a rupture with moment magnitude (M W)of8.2(GCMTandGEOFON)to8.3(U.S.GeologicalSurvey,USGS).Theearthquakecausedasizeable To study the … The M W 8.3 (Illapel) earthquake occurred on September 16, 2015, in central Chile, filling-in the Coquimbo seismic gap (Vigny et al., 2009) and releasing inter-seismic coupling of the region (Zhang et al., 2016, and references therein) eighteen years after the M W 7.1, Punitaqui earthquake … On 16 September 2015, the M w 8.3 Illapel, Chile, earthquake broke a large area of the Coquimbo region of north‐central Chile. Here we report on a post-tsunami field survey of these deposits between Caldera in the N and Pichidangui in the S (Fig. Kenji Satake, Mohammad Heidarzadeh, A Review of Source Models of the 2015 Illapel, Chile Earthquake and Insights from Tsunami Data, The Chile-2015 (Illapel) Earthquake and Tsunami, 10.1007/978-3-319-57822-4, (1-9), (2017).
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