Subdiffusion of volcanic earthquakes

• Autorzy: Abe S. , Suzuki N.

Identyfikatory

DOI

10.1007/s11600-017-0029-6

• Języki publikacji: EN

Abstrakty

EN

A comparative study is performed on volcanic seismicities at Icelandic volcano, Eyjafjallajökull, and Mt. Etna in Sicily from the viewpoint of complex systems science, and the discovery of remarkable similarities between them is reported. In these seismicities as point processes, the jump probability distributions of earthquakes (i.e., distributions of the distance between the hypocenters of two successive events) are found to obey the exponential law, whereas the waiting-time distributions (i.e., distributions of inter-occurrence time of two successive events) follow the power law. A careful analysis is made about the finite size effects on the waiting-time distributions, and the previously reported results for Mt. Etna (Abe and Suzuki 2015) are reinterpreted accordingly. It is shown that the growth of the seismic region in time is subdiffusive at both volcanoes. The aging phenomenon is commonly observed in the “event-time-averaged” mean-squared displacements of the hypocenters. A comment is also made on (non-)Markovianity of the processes.

Słowa kluczowe

EN

subdiffusion; volcanic seismicity; waiting time; power law; (non-)Markovianity; finite-dada-size effects; exponential jump probability distributions

PL

subdyfuzja; sejsmiczność wulkaniczna; rozkład czasu; prawo energetyczne

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2017
• Tom: Vol. 65, no. 3
• Strony: 481--489
• Opis fizyczny: Bibliogr. 20 poz.

Twórcy

autor

Abe S.

• Physics Division, Faculty of Information Science and Engineering, Huaqiao University, Xiamen, China; Department of Physical Engineering, Mie University, Mie, Japan; Institute of Physics, Kazan Federal University, Kazan, Russia

autor

Suzuki N.

• College of Science and Technology, Nihon University, Funabashi, Chiba, Japan

Bibliografia

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Uwagi

Errata do artykułu s. 481–489