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Metadata Files

Data Publication

Data supplement of "Tectonic context and possible triggering of the 2019-2020 Puerto Rico earthquake sequence"

Rob M.A. Govers

Utrecht University

(2021)

Descriptions

Paper Abstract: An historically unprecedented seismic moment was released by crustal events of the 2019-2020 earthquake sequence near southwest Puerto Rico. The sequence involved at least two, and per-haps three interacting fault systems. The largest Mw 6.4 event was likely triggered by left lateral strike-slip events along the eastern extension of the North Boquerón Bay-Punta Montalva fault zone. The mainshock occurred in a normal faultspan> zone that extends into a region where previous studies documented extensional deformation, beyond the Ponce fault and the Bajo Tasmanian fault. Coulomb stress changes by the mainshock may have triggered further normal faulting af-tershocks, left lateral strike-slip events in the region where these two fault zones interacted, and possibly right lateral strike-slip aftershocks along a third structure extending southward, the Guayanilla fault zone. Extension directions of the seismic sequence are consistently NNW-SSE oriented, in agreement with the GNSS-inferred motion direction of eastern Hispaniola relative to western Puerto Rico, and with crustal stress estimates for the overriding plate boundary zone. Data in this repository was used for the figures and as input data for Coulomb stress modeling. The software for making the figures was Generic Mapping Tools (Wessel et al., 2019). The software for computing coseismic stress changes is available online (https://doi.org/10.5281/zenodo.3894137). The data is provided in the main folder and 2 subfolders. Detailed information about these files as well as information on how the data is processed is given in the explanatory file readme.txt. Contact person is Dr Rob Govers - r.govers@uu.nl.

Keywords

Originally assigned keywords

Natural Sciences - Earth and related environmental sciences (1.5)

coulomb stress

earthquake sequence

triggering

tectonic context

faults

seismicity

USGS ComCat

initial strike-slip events

MSL enriched keywords

Inferred deformation behavior

deformation behaviour

brittle deformation

Earth's structure

Earth crust

tectonic deformation structure

tectonic fault

normal fault

MSL enriched sub domains i

rock and melt physics

Source

https://public.yoda.uu.nl/geo/UU01/I5E13S.html

Source publisher

Utrecht University

DOI

10.24416/uu01-i5e13s

Creators

Rob M.A. Govers

Utrecht University

ORCID:

https://orcid.org/0000-0001-7148-8857

Contributors

Blasweiler, Marjolein

Researcher

Utrecht University

ORCID:

https://orcid.org/0000-0002-4809-8217

Herman, Matthew W.

Researcher

California State University

ORCID:

https://orcid.org/0000-0003-4684-9459

Houtsma, Fenna

Researcher

Utrecht University

ORCID:

https://orcid.org/0000-0002-5769-5590

Govers, Rob M.A.

ContactPerson

Utrecht University

ORCID:

https://orcid.org/0000-0001-7148-8857

References

10.5281/zenodo.3894137

10.1016/j.marpetgeo.2015.04.014

10.3133/ofr97470K

10.1029/2020gl087718

10.5194/nhess-20-831-2020

Citation

Govers, R. M. A. (2021). Data supplement of "Tectonic context and possible triggering of the 2019-2020 Puerto Rico earthquake sequence". Utrecht University. https://doi.org/10.24416/UU01-I5E13S

Dates

Updated:

2024-07-12T11:08:50

Collected:

2020-01-12/2021-10-06

Language

Funding References

Funder name: Partially funded by The Netherlands Research Centre For Integrated Solid Earth Science

Rights

Open - freely retrievable

Creative Commons Attribution 4.0 International Public License

Datacite version

1.0

Geo location(s)

Puerto Rico