Corrigendum: The february 2018 seismic swarm in São Miguel, Azores

In the published article, there was an error in the text of the Abstract. The sentence in question previously stated:

“After ∼1 week, a new earthquake family emerged at shallower depths (∼8–12 km) reaching magnitudes up to ML 3.7”.

The corrected sentence appears below:

“After ∼1 week, a new earthquake family emerged at shallower depths (∼8–12 km) reaching magnitudes up to ML 3.4”.

Additionally, there was an error in (Figure 1) as published. The colorbar legend of Figure 1B was ranged from 0.0 to 1.0 when it should have specified the types of focal mechanism: Reverse (RV), Strike-Slip (SS) and Normal (NM) ordered from bottom to top.

FIGURE 1

The corrected (Figure 1) and its caption “(A) Location of the Azores Archipelago, in the triple junction between the North American, Eurasian and Nubian plates. Earthquake locations are shown according to the ISC catalog from 1995 to 2021 (brown dots). The currently inactive East Azores Fracture Zone (EAFZ) is shown by a dotted line and the rectangle identifies the Azores archipelago region, shown in (B). (B) Earthquake epicenters (brown dots) and focal mechanism, sized by magnitude, indicating a dominantly transtensional regime from the Global CMT catalog (Ekström et al., 2012). Colors indicate the type of faulting, from reverse (blue) through strike-slip (red) to normal (green), according to the Kaverina classification (Kaverina et al., 1996), as implemented in FMC (Álvarez-Gómez, 2019). The three events with magnitude Mw > 6 mentioned in the text are identified by their dates. The rectangle identifies the S. Miguel region, shown in (C). (C) Earthquake epicenters in S. Miguel colored according to time of occurrence, circle size indicates magnitude. S. Miguel Digital Elevation Model (DEM) was generated from a 1:5000 scale digital altimetric database from the Secretaria Regional do Turismo e Transportes of the Azores Government. It is also shown the locations of the volcano-tectonic features identified in Carmo et al. (2015): (SCV) Sete Cidades Volcano; (PFVS) Picos Fissural Volcanic System; (FGV) Fogo Volcano; (CFVS) Congro Fissural Volcanic System; (FNV) Furnas Volcano; (PV) Povoação Volcano; (NVS) Nordeste Volcanic System”. appear below.

The authors apologize for these errors and state that this does not change the scientific conclusions of the article in any way. The original article has been updated.

Statements

Summary

Keywords

spatio-temporal earthquake evolution, earthquake detection-location, waveform analysis, seismic swarm, São Miguel island, Azores triple junction

Citation

Soares A, Custódio S, Cesca S, Silva R, Vuan A and Mendes VB (2023) Corrigendum: The february 2018 seismic swarm in São Miguel, Azores. Front. Earth Sci. 11:1258767. doi: 10.3389/feart.2023.1258767

Received

14 July 2023

Accepted

07 August 2023

Published

01 September 2023

Volume

11 - 2023

Edited and reviewed by

Giovanni Martinelli, National Institute of Geophysics and Volcanology, Italy

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Copyright

© 2023 Soares, Custódio, Cesca, Silva, Vuan and Mendes.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

*Correspondence: A. Soares, analdyne.soares@campus.ul.pt

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