Field Survey of the 2015 Chile Tsunami with Emphasis on Coastal Wetland and Conservation Areas

Contreras-López, Manuel; Winckler, Patricio; Sepúlveda, Ignacio; Andaur-Álvarez, Adolfo; Cortés-Molina, Fernanda; Guerrero, Camila J.; Mizobe, Cyntia; Igualt, Felipe; Breuer, Wolfgang Alejandro; Beyá, José; Vergara, Hernán; Figueroa-Sterquel, Rodrigo

doi:10.1007/978-3-319-57822-4_17

Cited by 13 publications

(16 citation statements)

References 27 publications

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“…The locations of maximum tsunami runups reported by Aránguiz et al (2016) and Contreras-López et al (2016) are at the distances of *130 and *70 km to the north of epicenter, respectively (Fig. 2).…”

Section: Insights From Tsunami Datamentioning

confidence: 94%

“…The maximum runup height was reported as 10.8 m at Totoral (30.37°S) by Aránguiz et al (2016), whereas it was 13.6 m at La Cebada (30.97°S) by Contreras-López et al (2016). Except for such anomalous locations, the tsunami heights were up to 9 m on the coast between 29°S and 32°S, and smaller further south and north (Fig.…”

Section: Tsunami Datamentioning

confidence: 94%

“…The 2015 Illapel earthquake generated local and trans-Pacific tsunami Contreras-López et al 2016;Tang et al 2016;Zaytsev et al 2016). Along the Chilean coast, the Pacific Tsunami Warning Center (PTWC) and National Hydrographic and Oceanic Service (SHOA) issued tsunami threat messages 7 and 8 min following the earthquake, respectively .…”

Section: Tsunami Datamentioning

confidence: 99%

“…The post-tsunami surveys measured tsunami heights on the Chilean coast Contreras-López et al 2016). The maximum runup height was reported as 10.8 m at Totoral (30.37°S) by Aránguiz et al (2016), whereas it was 13.6 m at La Cebada (30.97°S) by Contreras-López et al (2016).…”

Section: Tsunami Datamentioning

confidence: 99%

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A Review of Source Models of the 2015 Illapel, Chile Earthquake and Insights from Tsunami Data

Satake

Heidarzadeh

2016

Pure Appl. Geophys.

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The 16 September 2015 Illapel, Chile, earthquake and associated tsunami have been studied by many researchers from various aspects. This paper reviews studies on the source model of the earthquake and examines tsunami data. The Illapel earthquake occurred in the source region of previous earthquakes in 1943 and 1880. The earthquake source was studied using various geophysical data, such as near-field seismograms, teleseismic waveform and backprojection, GPS and InSAR data, and tsunami waveforms. Most seismological analyses show a duration of *100 s with a peak at *50 s. The spatial distribution has some variety, but they all have the largest slip varying from 5 to 16 m located at 31°S, 72°W, which is *70 km NW of the epicenter. The shallow slip seems to be extended to the trench axis. A deeper slip patch was proposed from high-frequency seismic data. A tsunami earthquake model with a total duration of 250 s and a third asperity south of the epicenter is also proposed, but we show that the tsunami data do not support this model.

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Section: Insights From Tsunami Datamentioning

confidence: 94%

Section: Tsunami Datamentioning

confidence: 94%

Section: Tsunami Datamentioning

confidence: 99%

Section: Tsunami Datamentioning

confidence: 99%

See 2 more Smart Citations

A Review of Source Models of the 2015 Illapel, Chile Earthquake and Insights from Tsunami Data

Satake

Heidarzadeh

2016

Pure Appl. Geophys.

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“…The 2015 Illapel earthquake is of particular note because rapid seismological quantification of the event prompted tsunami warning and evacuation notifications within 8 to 11 min of the origin time, resulting in large‐scale evacuation along the Chile coast. Shaking damage was extensive, and tsunami runup was about 3 to 6 m along the adjacent coast from 29°S to 32°S, with localized peak values of 13 m at La Cebada (30.98°S, 71.65°W) and 10.8 m at Totoral (30.37°S, 71.67°W) and a tide gauge peak recording of 4.5 m at Coquimbo to the north [ Aránguiz et al ., ; Contreras‐López et al ., ]. Due to the low local population density, the early tsunami warning, and rapid societal response to the evacuation notice, the loss of life was limited to 13 fatalities, with 6 missing.…”

Section: Introductionmentioning

confidence: 99%

Joint modeling of teleseismic and tsunami wave observations to constrain the 16 September 2015 Illapel, Chile, M_w 8.3 earthquake rupture process

Lay

Cheung

et al. 2016

Geophysical Research Letters

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The 16 September 2015 Illapel, Chile, Mw 8.3 earthquake ruptured ~170 km along the plate boundary megathrust fault from 30.0°S to 31.6°S. A patch of offshore slip of up to 10 m extended to near the trench, and a patch of ~3 m slip occurred downdip below the coast. Aftershocks fringe the large‐slip zone, extending along the coast from 29.5°S to 32.5°S between the 1922 and 1971/1985 ruptures. The coseismic slip distribution is determined by iterative modeling of teleseismic body waves as well as tsunami signals recorded at three regional DART stations and tide gauges immediately north and south of the rupture. The tsunami observations tightly delimit the rupture length, suppressing bilateral southward extension of slip found in unconstrained teleseismic‐wave inversions. The spatially concentrated rupture area, with a stress drop of ~3.2 MPa, is validated by modeling DART and tide gauge observations in Hawaii, which also prove sensitive to the along‐strike length of the rupture.

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A Review of Source Models of the 2015 Illapel, Chile Earthquake and Insights from Tsunami Data

Satake

Heidarzadeh

2017

The Chile-2015 (Illapel) Earthquake and Tsunami

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The 16 September 2015 Illapel, Chile, earthquake has been studied by many researchers from various aspects. This paper reviews studies on the source model of the earthquake and examines tsunami data. The Illapel earthquake occurred in the source region of previous earthquakes in 1943 and 1880. The earthquake source was studied by using various geophysical data, such as near-field seismograms, teleseismic waveform and backprojection, GPS and InSAR data, and tsunami waveforms. Most seismogram analyses show the duration of ~ 100 s with a peak at ~ 50 s. The spatial distribution has some variety, but they all have the largest slip varying from 5 to 16 m located at 31°S, 72°W, which is ~ 70 km NW of the epicenter. The shallow slip seems to be extended to the trench axis. A deeper slip patch closer to the epicenter is proposed. A late tsunami earthquake model with a total duration of 250 s and the third asperity south of the epicenter is also proposed, but, by tsunami backward ray tracing, we show that the tsunami data do not support this model.

show abstract

Field Survey of the 2015 Chile Tsunami with Emphasis on Coastal Wetland and Conservation Areas

Cited by 13 publications

References 27 publications

A Review of Source Models of the 2015 Illapel, Chile Earthquake and Insights from Tsunami Data

A Review of Source Models of the 2015 Illapel, Chile Earthquake and Insights from Tsunami Data

Joint modeling of teleseismic and tsunami wave observations to constrain the 16 September 2015 Illapel, Chile, M_w 8.3 earthquake rupture process

A Review of Source Models of the 2015 Illapel, Chile Earthquake and Insights from Tsunami Data

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Field Survey of the 2015 Chile Tsunami with Emphasis on Coastal Wetland and Conservation Areas

Cited by 13 publications

References 27 publications

A Review of Source Models of the 2015 Illapel, Chile Earthquake and Insights from Tsunami Data

A Review of Source Models of the 2015 Illapel, Chile Earthquake and Insights from Tsunami Data

Joint modeling of teleseismic and tsunami wave observations to constrain the 16 September 2015 Illapel, Chile, Mw 8.3 earthquake rupture process

A Review of Source Models of the 2015 Illapel, Chile Earthquake and Insights from Tsunami Data

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Joint modeling of teleseismic and tsunami wave observations to constrain the 16 September 2015 Illapel, Chile, M_w 8.3 earthquake rupture process