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Nippes earthquake 2021

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Journal Article
Published: 12 October 2023
Seismological Research Letters (2023) 94 (6): 2595–2608.
...Zhen Li; Teng Wang Abstract On 14 August 2021, an M w 7.2 earthquake struck Nippes, Haiti, 11 yr after the devastating 2010 M w 7.0 Port‐au‐Prince earthquake. This earthquake occurred in a remote region where the structure at the depth of the main boundary Enriquillo Plantain Garden fault (EPGF...
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Journal Article
Published: 04 January 2023
Bulletin of the Seismological Society of America (2023) 113 (1): 73–98.
... Herns Marcelin; Christa L. Remington ABSTRACT The M w 7.2 Nippes, Haiti, earthquake occurred on 14 August 2021 in Haiti’s southwest peninsula and in the midst of significant social, economic, and political crises. A hybrid reconnaissance mission (i.e., combined remote and field investigation...
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Journal Article
Published: 13 October 2022
Bulletin of the Seismological Society of America (2023) 113 (1): 58–72.
.... Aftershocks delineated three clusters with slightly variable dip. First‐motion focal mechanisms are primarily composed of both left lateral strike‐slip and thrust motions. The 14 August 2021 M w  7.2 Nippes, Haiti, earthquake is the second major event to strike southern Haiti...
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Journal Article
Published: 04 August 2022
Seismological Research Letters (2022) 93 (6): 3308–3323.
... 2021 M w 8.2 Chignik, Alaska, United States, the 14 August 2021 M w 7.2 Nippes, Haiti, and the 8 July 2021 M w 6.0 Antelope Valley, California, United States, earthquakes. These examples confirm that jointly leveraging a variety of geophysical datasets improves the reliability of the slip model...
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Journal Article
Published: 12 July 2022
Bulletin of the Seismological Society of America (2022) 112 (5): 2468–2486.
... Nippes earthquakes on 14 August 2021. Early Interferometric Synthetic Aperture Radar observations suggest the 2021 earthquake broke structures associated with this fault system farther west of the 2010 event, but the rupture zones of both events are separated by a ∼50 km gap. This sequence provided...
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Journal Article
Published: 15 November 2022
Bulletin of the Seismological Society of America (2023) 113 (1): 157–185.
... ( Douilly et al. , 2013 ; Saint Fleur et al. , 2015 ). Recently, the 2021 M 7.2 Nippes earthquake ( Calais et al. , 2022 ; Douilly et al. , 2022 ), and a recent study reconsidering the 1860 sequence ( Martin et al. , 2022 ) further underscored the complexity of fault systems and large earthquake ruptures...
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Intersectional maps depicting: (a) <span class="search-highlight">2021</span> population map with the boundary of...
Published: 04 January 2023
was affected after the 2021 earthquake. (b) The USGS liquefaction probability map, earthquake intensity contours of the 2021 Nippes earthquake, and a landslide inventory map ( Martinez et al. , 2021 ) overlaid on the boundary of the lowest average annual income. The color version of this figure is available
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Sentinel‐1 ascending track 004 InSAR observations and inversion solutions f...
Published: 04 August 2022
Figure 4. Sentinel‐1 ascending track 004 InSAR observations and inversion solutions for 14 August 2021, Nippes, Haiti, earthquake (acquisitions on 5 and 17 August 2021). (a) Downsampled observed line of sight (LoS) displacements, (b) inversion synthetic LoS displacements, (c) misfit between
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Sentinel‐1 descending track 142 InSAR observations and inversion solutions ...
Published: 04 August 2022
Figure 5. Sentinel‐1 descending track 142 InSAR observations and inversion solutions for 14 August 2021, Nippes, Haiti, earthquake (acquisitions on 3 and 15 August 2021). (a) Downsampled observed line of sight (LoS) displacements, (b) inversion synthetic LoS displacements, (c) misfit between
Journal Article
Published: 06 September 2023
Seismological Research Letters (2023) 94 (6): 2725–2739.
... 2019, until June 2022 (Figs.  3 and 4 ). Before the 14 August 2021 M w  7.2 Nippes earthquake (yellow star in Fig.  3 ), most of the events had magnitudes between 2 and 4, with some rare peaks not exceeding magnitude 5, and do not exceed 30 events per month on an average (Fig.  4 ). Some rare...
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Examples of gCent limitations in large <span class="search-highlight">earthquakes</span>. (a) Unwrapped interfero...
Published: 15 September 2022
recovers the location and mechanism well but underestimates the magnitude because of unmodeled distributed slip. (b) Unwrapped interferogram of the August 2021 M w  7.2 Nippes, Haiti, earthquake with the same annotations as panel (a). gCent does not capture the western half of the rupture (region
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Normalized cumulative strike‐slip versus depth for different fault segments...
Published: 12 October 2023
Figure 8. Normalized cumulative strike‐slip versus depth for different fault segments of the 2021 Nippes earthquake, from our proposed inversion results. Cumulative strike slip is computed by integrating the strike slip that occurred at different depths. The results are normalized by the maximum
Journal Article
Published: 15 September 2022
Bulletin of the Seismological Society of America (2022) 112 (6): 2946–2957.
... recovers the location and mechanism well but underestimates the magnitude because of unmodeled distributed slip. (b) Unwrapped interferogram of the August 2021 M w  7.2 Nippes, Haiti, earthquake with the same annotations as panel (a). gCent does not capture the western half of the rupture (region...
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(a) Interpolated shaking intensity map for the 1770 <span class="search-highlight">earthquake</span>, constrained...
Published: 15 November 2022
), ruptures involved with 1860 sequence ( Martin and Hough, 2022 ; 1860a–d), 2021 Nippes earthquake ( Calais et al. , 2022 ; dark blue line labeled 2021); 2010 Haiti earthquake ( Calais et al. , 2010 ; blue line labeled 2010).
Journal Article
Published: 28 December 2022
Bulletin of the Seismological Society of America (2023) 113 (1): 131–142.
... August 2021 M w  7.2 Nippes earthquake ruptured the same fault zone ∼100 km to the west, also with a mechanism that combined reverse and strike‐slip motion ( Calais et al. , 2022 ; Okuwaki and Fan, 2022 ; Maurer et al. , 2022 ). Interseismic Global Positioning System (GPS) measurements...
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Regional geological map with locations where ground failure or damage was o...
Published: 04 January 2023
of the 2021 Nippes earthquake epicenter (star) and two ground‐motion recording stations (pentagons) are also shown. The inset figure shows the state level administrative boundaries of Haiti, Dominican Republic, and Cuba as well as two of the major active faults in the region. The color version of this figure
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Comparison between teleseismic‐only and joint regional and teleseismic inve...
Published: 04 August 2022
for the teleseismic‐only (gray) and joint solution (blue). (d) Teleseismic‐only inversion for 2021 M w  7.2 Nippes, Haiti, earthquake compared to (e) joint regional and teleseismic inversion for the same event. (f) Source time functions for the teleseismic‐only (gray) and joint solution (blue). (g
Journal Article
Published: 28 October 2022
Bulletin of the Seismological Society of America (2023) 113 (1): 41–57.
.... 2022 . Rupture segmentation of the August 14, 2021 Mw7.2 Nippes, Haiti, earthquake using aftershock relocation from a local seismic deployment , Bull. Seismol. Soc. Am. 1 – 15 , doi: 10.1785/0120220128 . Frankel A. Harmsen S. Mueller C. Calais E. , and Haase J. 2011...
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Journal Article
Published: 01 November 2023
Earthquake Spectra (2023) 39 (4): 2613–2643.
... and densely populated. In addition, the coupling of their numerous coastal cities with the presence of weak susceptible soils, a high-water table along the seacoast, and proximity of known or likely blind faults increases the exposure to seismic risk. The Haiti Nippes earthquake on 14 August 2021 again...
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(a) Seismotectonic context of the Caribbean–North American plate boundary a...
Published: 13 October 2022
distribution for the 2010 Haiti earthquake ( Douilly et al. , 2013 ), and the yellow circles indicate the aftershock relocation for the 2021 Nippes rupture from this study. The blue dashed rectangle shows the area encompassed in Figure  6 and beyond. J, Jérémie; L, Léogâne; PaP, Port‐au‐Prince; and TBF