Podrobnosti záznamu

Název
    Simultaneous infrasonic, seismic, magnetic and ionospheric observations in an earthquake epicentre
Autor
    Baše, Jiří
    Chum, Jaroslav
    Horálek, Josef
    Hruška, František
    Krasnov, V.
    Laštovička, Jan
    Šindelářová, Tereza
    Zedník, Jan
Jazyk
    anglicky
Typ dokumentu
    článek v odborném periodiku
Zdrojový dokument - seriál
    Journal of Atmospheric and Solar-Terrestrial Physics
Svazek/č.
    Roč. 72, č. 16
Strany
    s. 1231-1240
Rok
    2010
Poznámky
    Projekt: GA205/07/1367, GA ČR3cav_un_auth*0228751
    Rozsah: 10 s.
    Výzkumný záměr: CEZ:AV0Z30120515
    Výzkumný záměr: CEZ:AV0Z30420517
Předmětová kategorie
    Earthquake
    Infrasonic effects
    Ionospheric effects
    Magnetic effects
Klíčové slovo
    Earthquake
    Epicentre
    Infrasonic
    Ionospheric
    Magnetic
    Observations
    Seismic
    Simultaneous
Abstrakt (anglicky)
   We analyze the co-seismic effects of a relatively weak earthquake of 28 October 2008, which was a part of an earthquake swarm in the westernmost region of the Czech Republic. Special attention is paid to unique measurements of infrasonic phenomena. As far as we know, these have been the first infrasonic measurements during earthquake in the epicentre zone. Infrasonic oscillations (~1-12 Hz) in the epicentre region appear to be excited essentially by the vertical seismic oscillations. The observed oscillations are real epicentral infrasound not caused by seismic shaking of the instruments or by meteorological phenomena. Seismo-infrasonic oscillations observed 155 km apart from the epicentre were excited in situ by seismic waves. No earthquake-related infrasonic effects have been observed in the ionosphere. Necessity to make vibration tests of instruments is pointed out in order to be sure that observed effects are not effects of mechanical shaking of the instrument.
Přispěvatel
    AV ČR Brno, Geofyzikální ústav
Kód přispěvatele
    AV ČR, GFÚ
Zdrojový formát
    U
Datum importu
    9. 12. 2013