| 1. Identity statement | ||||
| Reference Type | Conference Paper (Conference Proceedings) | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Site | mtc-m12e.sid.inpe.br (namespace prefix: upn:4CUH36S) | |||
| Identifier | 8JMKD2USNRW34T/4DD62U2 | |||
| Repository | sid.inpe.br/mtc-m12e/2025/04.28.11.24 | |||
| Last Update | 2025:04.28.11.24.31 (UTC) simone | |||
| Metadata Repository | sid.inpe.br/mtc-m12e/2025/04.28.11.24.31 | |||
| Metadata Last Update | 2025:05.06.14.11.17 (UTC) administrator | |||
| Secondary Key | INPE--PRE/ | |||
| DOI | 10.5194/egusphere-egu25-86 | |||
| Citation Key | AdebayoKherPime:2025:GrUpTE | |||
| Title | First Observation of Co-seismic Ionospheric Disturbances from a Deep-Focus Earthquake in Brazil: Ground Uplift and TEC Analysis  | |||
| Year | 2025 | |||
| Access Date | 2026, Sep. 22 | |||
| Secondary Type | PRE CI | |||
| Number of Files | 1 | |||
| Size | 285 KiB | |||
| 2. Context | ||||
| Author | 1 Adebayo, Oluwasegun Micheal 2 Kherani, Esfhan Alam 3 Pimenta, Alexandre Alvares | |||
| Resume Identifier | 1 2 3 8JMKD3MGP5W/3C9JGGL | |||
| ORCID | 1 0000-0001-7717-6256 | |||
| Group | 1 GESAST-CEA-DIPGR-INPE-MCTI-GOV-BR 2 DIHPA-CGCE-INPE-MCTI-GOV-BR 3 DIHPA-CGCE-INPE-MCTI-GOV-BR | |||
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| Author e-Mail Address | 1 adebayooluwasegun37@gmail.com) 2 esfhan.kherani@inpe.br 3 alexandre.pimenta@inpe.br | |||
| Conference Name | EGU General Assembly | |||
| Conference Location | Vienna, Austria | |||
| Date | 27 apr. - 02 may 2025 | |||
| Publisher | EGU | |||
| Pages | e86 | |||
| Book Title | Proceedings | |||
| Tertiary Type | Oral Session | |||
| Host Collection | urlib.net/www/2025/02.16.04.07 upn:4CUH36S | |||
| History (UTC) | 2025-04-28 11:24:31 :: simone -> administrator :: 2025-05-06 14:11:17 :: administrator -> simone :: 2025 | |||
| 3. Content and structure | ||||
| Is the master or a copy? | is the master | |||
| Content Stage | completed | |||
| Transferable | 1 | |||
| Content Type | External Contribution | |||
| Version Type | publisher | |||
| Abstract | Co-seismic ionospheric disturbances (CIDs) are well-documented phenomena typically following medium to large earthquakes. However, several factors influence the detectability of CIDs, and deep-focus earthquakes (depth > 300 km) have long been considered ineffective in generating significant ionospheric disturbances. Consequently, regions like Brazil, which are known for deep-focus seismic activity, have not reported CIDs associated with such events. On January 20, 2024, a deep-focus earthquake of magnitude 6.6 struck near Tarauacá, Brazil, at a depth of 607 km. Although no surface damage was reported, this event marked a significant seismic occurrence in a region influenced by the subducted Nazca Plate. In this study, we used Global Navigation Satellite System (GNSS) Total Electron Content (TEC) data from the Brazilian Network for Continuous Monitoring of GNSS Systems (RBMC) and seismic data from the IRIS network to analyze the earthquake's impact on both the ground surface and the ionosphere. The results revealed clear ionospheric disturbances, or ionoquakes, characterized by "N-wave" patterns in the TEC data, originating from infrasonic-acoustic waves generated by the earthquakes crustal displacement. These ionoquakes were detected 5.5 - 12.3 minutes after the earthquake, traveling at speeds between 550 m/s and 743 m/s. This is the first report of CIDs associated with a deep-focus earthquake in Brazil. Spectral analysis showed a TEC amplitude peak in the 1416 mHz frequency range, suggesting high-frequency infrasonic-acoustic wave dynamics. | |||
| Area | CEA | |||
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > GES > First Observation of... | |||
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção a partir de 2021 > CGCE > First Observation of... | |||
| doc Directory Content | access | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| data URI | upn:4CUH36S:8JMKD2USNRW34T/4DD62U2 | |||
| data URL | http://urlib.net/ibi/8JMKD2USNRW34T/4DD62U2 | |||
| zipped data URL | http://urlib.net/zip/8JMKD2USNRW34T/4DD62U2 | |||
| Language | en | |||
| Target File | EGU25-86-print.pdf | |||
| User Group | simone | |||
| Visibility | shown | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Mirror Repository | urlib.net/www/2025/02.16.04.07.51 | |||
| Next Higher Units | 8JMKD3MGPCW/3F2PBEE 8JMKD3MGPCW/46KTFK8 | |||
| Citing Item List | sid.inpe.br/mtc-m21/2012/07.13.14.39.36 - 108 sid.inpe.br/bibdigital/2013/10.12.21.02 - 67 sid.inpe.br/bibdigital/2022/04.03.17.52 - 34 dpi.inpe.br/marte2/2013/05.17.15.03.08 - 4 sid.inpe.br/bibdigital@80/2006/04.07.15.50.13 - 3 urlib.net/www/2025/02.16.04.07.51 - 1 | |||
| 6. Notes | ||||
| Empty Fields | archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel dissemination e-mailaddress edition editor format isbn issn keywords label lineage mark nextedition notes numberofvolumes organization parameterlist parentrepositories previousedition previouslowerunit progress project publisheraddress readergroup readpermission rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject tertiarymark type url volume | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||