Exploring Potential Impact-Induced Magnetic Signatures at the Tunguska Event Epicenter Using UAV-Based Magnetometry
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F25%3A10499888" target="_blank" >RIV/00216208:11310/25:10499888 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21230/25:00385488
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=pTGP4TY~Ir" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=pTGP4TY~Ir</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1029/2024EA004194" target="_blank" >10.1029/2024EA004194</a>
Alternative languages
Result language
angličtina
Original language name
Exploring Potential Impact-Induced Magnetic Signatures at the Tunguska Event Epicenter Using UAV-Based Magnetometry
Original language description
The Tunguska event of 1908 remains the most significant atmospheric explosion in recorded history, yet its geophysical effects, particularly its impact on Earth's magnetic field, remain uncertain. This study presents the first detailed magnetometer survey of the Tunguska epicenter, aiming to map regional magnetic anomalies and assess potential impact-induced magnetization. The survey used unmanned aerial vehicle and covered approximately 30 square kilometers, revealing a complex pattern of magnetic anomalies that correlate with known geological structures. Notably, some anomalies exhibit spatial alignment with the presumed trajectory of the airburst (~300° azimuth), suggesting potential influence from the event. This spatial correlation raises the possibility that transient electromagnetic effects from the airburst, such as ionization-induced remagnetization or shock-induced changes in magnetic mineralogy, could have contributed to the observed anomaly distribution. However, due to the limitations of our data set, we cannot definitively attribute any observed anomalies to impact-related remagnetization. Our analysis identifies regions where future rock magnetic studies could provide further insights. We discuss possible mechanisms for transient remagnetization, including ionization effects and shock-induced mineral transformations, while emphasizing the necessity of future paleomagnetic sampling to test these hypotheses. These findings establish a foundational geophysical data set for future interdisciplinary investigations into the Tunguska event's environmental and geological consequences.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10505 - Geology
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Earth and Space Science
ISSN
2333-5084
e-ISSN
2333-5084
Volume of the periodical
12
Issue of the periodical within the volume
7
Country of publishing house
GB - UNITED KINGDOM
Number of pages
17
Pages from-to
e2024EA004194
UT code for WoS article
001530255800001
EID of the result in the Scopus database
2-s2.0-105011284613