2017
DOI: 10.1002/2017gl072545
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Fault size and depth extent of the Ecuador earthquake (Mw 7.8) of 16 April 2016 from teleseismic and tsunami data

Abstract: The April 2016 Ecuador Mw 7.8 earthquake was the first megathrust tsunamigenic earthquake along the Ecuador‐Colombia subduction zone since 1979 (Mw 8.2 with 200 deaths from tsunami). While there was no tsunami damage from the 2016 earthquake, small tsunamis were recorded at Deep‐ocean Assessment and Reporting of Tsunami and tide gauges. Here we designed various fault models with and without shallow‐slip area and compared the computed teleseismic and tsunami waveforms with the observations. While teleseismic in… Show more

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Cited by 27 publications
(17 citation statements)
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“…The maximum tsunami height was ~10 cm (Figure b) and ~1 cm (Figure e) for the M w 7.2 and 6.5 earthquakes, respectively. Some studies have estimated earthquake fault models by analyzing such tsunami signals in the OBPGs (e.g., Gusman et al, ; Heidarzadeh, Murotani, et al, ; Kubota et al, ).…”
Section: Introductionmentioning
confidence: 99%
“…The maximum tsunami height was ~10 cm (Figure b) and ~1 cm (Figure e) for the M w 7.2 and 6.5 earthquakes, respectively. Some studies have estimated earthquake fault models by analyzing such tsunami signals in the OBPGs (e.g., Gusman et al, ; Heidarzadeh, Murotani, et al, ; Kubota et al, ).…”
Section: Introductionmentioning
confidence: 99%
“…Past earthquakes with moment magnitudes (M w ) of more than 7.0 occurred in this region in 1906in , 1942in , 1958in , 1979in (Duda 1965Kanamori 1977;Mendoza and Dewey 1984;Sennson and Beck 1996;Ye et al 2016;Heidarzadeh et al 2017). The earthquake properties of these events have been investigated by many previous studies; the most destructive (or largest) earthquake is considered to be the 1906 event, which had a magnitude greater than 8.0 (Gutenberg and Richter 1954;Scholz and Campos 2012).…”
Section: Introductionmentioning
confidence: 99%
“…Tsunami waveform records have been proven to contain reliable information for retrieving the slip distribution of the earthquake source, especially for earthquakes generated along the subduction zones (Satake and Tanioka 1999;Satake 2006, 2013;Fujii et al 2011;Gusman et al 2015;Yoshimoto et al 2016). Furthermore, detailed tsunami simulations using high-resolution bathymetry and topography data provide valuable information to specifically analyze tsunami inundation features and thereby validate the estimated tsunami sources (Kakinuma et al 2012;Fukutani et al 2016;Heidarzadeh et al 2017). Here, to improve the tsunami source estimate and further analyze the observed tsunami features around Sendai Coast, we first estimate the fault slip distribution of the tsunami source using the moment tensor solution proposed by GCMT and USGS as a reference.…”
Section: Introductionmentioning
confidence: 99%