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Pedernales earthquake 2016

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Journal Article

Earthquake Ground Effects and Intensity of the 16 April 2016 M w 7.8 Pedernales, Ecuador, Earthquake: Implications for the Source Characterization of Large Subduction Earthquakes

Kervin Chunga, Franz Livio, Maurizio Mulas, Felipe Ochoa‐Cornejo, Davide Besenzon, Maria Francesca Ferrario, Alessandro Maria Michetti
Published: 09 October 2018
Bulletin of the Seismological Society of America (2018) 108 (6): 3384–3397.
DOI: https://doi.org/10.1785/0120180051
...) caused by the M w 7.8 subduction earthquake that hit the coastal region of Ecuador on 16 April 2016 (the Pedernales earthquake). These effects include: (a) permanent ground deformation, (b) open cracks, (c) liquefaction, (d) landslides, and (e) tsunami waves. We use these observations to evaluate...
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A Seismic Intensity Survey of the 16 April 2016 M w 7.8 Pedernales, Ecuador, Earthquake: A Comparison with Strong‐Motion Data and Teleseismic Backprojection

Ellen M. Smith, Walter D. Mooney
Published: 31 March 2021
Seismological Research Letters (2021) 92 (4): 2156–2171.
DOI: https://doi.org/10.1785/0220200290
...Ellen M. Smith; Walter D. Mooney Abstract We conducted a seismic intensity survey in Ecuador, following the 16 April 2016 M w 7.8 Pedernales earthquake, to document the level of damage caused by the earthquake. Our modified Mercalli intensities (MMIs) reach a maximum value of VIII along the coast...
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The 2016 M w 7.8 Pedernales, Ecuador, Earthquake: Rapid Response Deployment

Anne Meltzer, Susan Beck, Mario Ruiz, Mariah Hoskins, Lillian Soto‐Cordero, Joshua C. Stachnik, Colton Lynner, Rob Porritt, Daniel Portner, Alexandra Alvarado, Stephen Hernandez, Hugo Yepes, Philippe Charvis, Yvonne Font, Marc Regnier, Hans Agurto‐Detzel, Andreas Rietbrock, Sergio Leon‐Rios, E. Diego Mercerat
Published: 06 March 2019
Seismological Research Letters (2019) 90 (3): 1346–1354.
DOI: https://doi.org/10.1785/0220180364
.... Diego Mercerat ABSTRACT The April 2016 Pedernales earthquake ruptured a 100 km by 40 km segment of the subduction zone along the coast of Ecuador in an M w 7.8 megathrust event east of the intersection of the Carnegie ridge with the trench. This portion of the subduction zone has ruptured on decadal...
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EEEs caused by the <span class="search-highlight">2016</span> <span class="search-highlight">Pedernales</span> <span class="search-highlight">earthquake</span>: (a) fractures on a paved roa...

EEEs caused by the 2016 Pedernales earthquake: (a) fractures on a paved roa...

Published: 09 October 2018
Figure 3. EEEs caused by the 2016 Pedernales earthquake: (a) fractures on a paved road; (b) shoreline uplift; (c) deformation and fracturing of a cobblestone road; (d) lateral spreading and subsidence; (e) cracks in soil; (f) earthquake‐induced landslide; (g) earthquake lights in Guayaquil; (h
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Macroseismic fields for the <span class="search-highlight">2016</span> M w  7.8 <span class="search-highlight">Pedernales</span> <span class="search-highlight">earthquake</span>: (i...

Macroseismic fields for the 2016 M w  7.8 Pedernales earthquake: (i...

Published: 09 October 2018
Figure 5. Macroseismic fields for the 2016 M w  7.8 Pedernales earthquake: (inset) Regional map of the European Macroseismic Scale 1998 (EMS‐98) intensity data points; (a) Isoseismal map for EMS‐98 scale, based on the compilation of the Geophysical Institute of Ecuador, the U.S
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<span class="search-highlight">Pedernales</span> <span class="search-highlight">earthquake</span> on 16 April <span class="search-highlight">2016</span> M w  7.8. Accelerograms recorded a...

Pedernales earthquake on 16 April 2016 M w  7.8. Accelerograms recorded a...

Published: 15 February 2017
Figure 2. Pedernales earthquake on 16 April 2016 M w  7.8. Accelerograms recorded at six stations around the fault plane (see Fig.  1 , east component). Latitudes of stations, maximum amplitude, and rupture distance to the fault plane are indicated.
Journal Article

Monitoring the Earthquake Cycle in the Northern Andes from the Ecuadorian cGPS Network

Patricia A. Mothes, Frederique Rolandone, Jean‐Mathieu Nocquet, Paul A. Jarrin, Alexandra P. Alvarado, Mario C. Ruiz, David Cisneros, Héctor Mora Páez, Mónica Segovia
Published: 14 February 2018
Seismological Research Letters (2018) 89 (2A): 534–541.
DOI: https://doi.org/10.1785/0220170243
... or deflation on the flanks of volcanoes. An opportunity to test the network’s timely registry of surface coseismic offsets was provided by the 16 April 2016 M w 7.8 Pedernales, Ecuador, earthquake whose epicenter was along the western margin of central Ecuador, South America. This large earthquake...
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Comparison of Observed Ground‐Motion Attenuation for the 16 April 2016 M w 7.8 Ecuador Megathrust Earthquake and Its Two Largest Aftershocks with Existing Ground‐Motion Prediction Equations

Céline Beauval, J. Marinière, A. Laurendeau, J.‐C. Singaucho, C. Viracucha, M. Vallée, E. Maufroy, D. Mercerat, H. Yepes, M. Ruiz, A. Alvarado
Published: 15 February 2017
Seismological Research Letters (2017) 88 (2A): 287–299.
DOI: https://doi.org/10.1785/0220160150
...Figure 2. Pedernales earthquake on 16 April 2016 M w  7.8. Accelerograms recorded at six stations around the fault plane (see Fig.  1 , east component). Latitudes of stations, maximum amplitude, and rupture distance to the fault plane are indicated. ...
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A New Seismic Hazard Model for Ecuador

C. Beauval, J. Marinière, H. Yepes, L. Audin, J.‐M. Nocquet, A. Alvarado, S. Baize, J. Aguilar, J.‐C. Singaucho, H. Jomard
Published: 03 April 2018
Bulletin of the Seismological Society of America (2018) 108 (3A): 1443–1464.
DOI: https://doi.org/10.1785/0120170259
... for the seismogenic crustal, inslab, and interface sources, modified from Yepes et al. (2016) , to account for the information gained after the 2016 M w 7.8 Pedernales megathrust earthquake. Three different earthquake catalogs are used to account for uncertainties in magnitude–frequency distribution modeling...
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Location maps and seismotectonic setting; (left inset) regional view of Sou...

Location maps and seismotectonic setting; (left inset) regional view of Sou...

Published: 09 October 2018
of Ecuador and nearby regions: small stars are the epicenters of large subduction events; the big star is the epicenter of the 16 April 2016 M w  7.8 Pedernales earthquake; (right inset) epicenter, focal solution, and aftershocks of the 2016 Pedernales earthquake.The color version of this figure
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Location map of study area showing along‐strike projection of the rupture z...

Location map of study area showing along‐strike projection of the rupture z...

Published: 31 March 2021
Figure 1. Location map of study area showing along‐strike projection of the rupture zone of the 2016 M w  7.8 Pedernales, Ecuador, earthquake and for 1906, 1942, 1958, 1979, 1987, 1995, 1998, and 2016 M w events. The 1995 earthquake is directly south of the 1987 event, covered
Journal Article

Low‐Frequency Seismic Amplification in the Quito Basin (Ecuador) Revealed by Accelerometric Recordings of the RENAC Network

Aurore Laurendeau, Françoise Courboulex, Luis Fabian Bonilla, Alexandra Alvarado, Victor Alfonso Naya, Philippe Guéguen, E. Diego Mercerat, Juan Carlos Singaucho, Etienne Bertrand, Matthieu Perrault, Juan Gabriel Barros, Mario Ruiz
Published: 24 October 2017
Bulletin of the Seismological Society of America (2017) 107 (6): 2917–2926.
DOI: https://doi.org/10.1785/0120170134
... in the northern part. The recordings of the 16 April 2016 M w 7.8 Pedernales earthquake that occurred on the subduction interface 150 km away from Quito confirm this low‐frequency amplification in the southern part of the city, by observing larger amplitudes and longer durations of the signals. Higher frequencies...
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Station map <span class="search-highlight">Pedernales</span> <span class="search-highlight">earthquake</span> international seismic rapid response. (In...

Station map Pedernales earthquake international seismic rapid response. (In...

Published: 06 March 2019
Figure 1. Station map Pedernales earthquake international seismic rapid response. (Inset) South America, Ecuador outlined by red box. 2016 Pedernales earthquake mainshock location (white star) and coseismic slip contours from Nocquet et al. (2017) , coseismic slip contour 1 m, and maximum slip
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Comparison of the spectral ratios (eHVSR at left and SSR at right) for the ...

Comparison of the spectral ratios (eHVSR at left and SSR at right) for the ...

Published: 24 October 2017
Figure 6. Comparison of the spectral ratios (eHVSR at left and SSR at right) for the whole dataset (patches) and for the 2016 M w  7.8 Pedernales earthquake (bold lines) for one station in the north (CIRC, top) and one station in the south (LILI, bottom).
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Maps and cross‐sections of seismicity between 11 and 17 May <span class="search-highlight">2016</span>. (a) Clean...

Maps and cross‐sections of seismicity between 11 and 17 May 2016. (a) Clean...

Published: 21 December 2023
. The number of events on the maps indicates the number of events in the catalog after and before culling. Light blue contours, 1 m contours of the coseismic rupture area of the Pedernales 2016 earthquake after Nocquet et al. (2017) . The color version of this figure is available only in the electronic
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Events used for this study selected for the quality (high signal‐to‐noise r...

Events used for this study selected for the quality (high signal‐to‐noise r...

Published: 24 October 2017
Figure 3. Events used for this study selected for the quality (high signal‐to‐noise ratio) of their recordings on the Red Nacional de Acelerógrafos (RENAC)‐QUITO network. The rupture zone of the Pedernales earthquake is from Nocquet et al. (2016) .The color version of this figure is available
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Broad scale coseismic static displacements recorded at cGPS stations in Ecu...

Broad scale coseismic static displacements recorded at cGPS stations in Ecu...

Published: 14 February 2018
Figure 3. Broad scale coseismic static displacements recorded at cGPS stations in Ecuador and southern Colombia. Red arrows represent horizontal displacements, and black bars are for the vertical. Epicenter of Pedernales 2016 earthquake and rupture area are represented by yellow star and lines
Journal Article

Achieving a Comprehensive Microseismicity Catalog through a Deep‐Learning‐Based Workflow: Applications in the Central Ecuadorian Subduction Zone

Alexander Wickham‐Piotrowski, Yvonne Font, Marc Regnier, Bertrand Delouis, Olivier Lengliné, Monica Segovia, Quentin Bletery
Published: 21 December 2023
Bulletin of the Seismological Society of America (2024) 114 (2): 823–841.
DOI: https://doi.org/10.1785/0120230128
.... The number of events on the maps indicates the number of events in the catalog after and before culling. Light blue contours, 1 m contours of the coseismic rupture area of the Pedernales 2016 earthquake after Nocquet et al. (2017) . The color version of this figure is available only in the electronic...
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Seismic intensity (modified Mercalli intensity [MMI]) contour map of <span class="search-highlight">2016</span> P...

Seismic intensity (modified Mercalli intensity [MMI]) contour map of 2016 P...

Published: 31 March 2021
Figure 2. Seismic intensity (modified Mercalli intensity [MMI]) contour map of 2016 Pedernales earthquake Circles represent observed MMI and the location of sites visited. The color scheme adheres to the instrumental intensity of ShakeMap ( Wald et al. , 2005 ). Isoseismal lines are dashed lines
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Coseismic static displacements recorded at near‐field cGPS stations at abou...

Coseismic static displacements recorded at near‐field cGPS stations at abou...

Published: 14 February 2018
Figure 2. Coseismic static displacements recorded at near‐field cGPS stations at about 100 km from epicenter. The horizontal (red arrows) and vertical (black bars) displacements of each station are shown. Epicenter of Pedernales 2016 earthquake and rupture area are represented by yellow star