Rockburst. Mechanisms, monitoring, warning, and mitigation

0502780 - GFÚ 2019 RIV GB eng M - Monography Chapter
Šílený, Jan
Mechanisms of rockbursts vs natural earthquakes.
Rockburst. Mechanisms, monitoring, warning, and mitigation. Oxford: Elsevier, 2018 - (Feng, X.), s. 176-181. ISBN 978-0-12-805054-5
R&D Projects: GA ČR(CZ) GA16-03950S
Institutional support: RVO:67985530
Keywords : volume change in focus * alternative source models * robust inverse task
OECD category: Volcanology

The first-hand characteristics of a seismic event to decide its nature in terms of natural earthquake vs rockburst is its
mechanism. Tectonic earthquakes are mostly shear slip events with a DC mechanism, while rockbursts are supposed
to have a more complex mechanism with non-DC components. Thus, the robustness of the determination of the non-
DC part is a crucial issue. It is known that a reliable estimate of non-DC is often a weak point of an inverse task using
the MT source model. The physical model of a generalized slip-the STC-resulting in a constrained MT is much more
robust in realistic situations, and gives some perspective for an answer even where the full MT inversion fails.
Permanent Link: http://hdl.handle.net/11104/0294675