Precursory stress changes before large earthquakes : on a new physical law for earthquakes

Žalohar, Jure (avtor), Vičič, Blaž (avtor), Potočnik, Matic (avtor), Soklič, Nejc (avtor), Komac, Marko (avtor), Hölscher, Thomas (avtor), Herlec, Uroš (avtor), Dolenec, Matej (avtor)

In this article, we first review the progress in our understanding of tectonic stresses in the Earth’s crust achieved in last three to four decades. We briefly review the literature on roughly four groups of studies; (1) World’s Stress Map project (WSM), (2) fault-slip data and paleostress analyses, (3) Coulomb stress transfer, and (4) theories of the generalized continua with emphasis on the Cosserat continuum. Based on these studies, we develop a new numerical algorithm to calculate tectonic strain rate, tectonic stress, and normalized tectonic shear stress fields from the earthquake focal mechanisms. We show that this field changes over time, and is therefore far from being constant. Further on, we focus our efforts on the analysis of the relationship between the magnitudes of the earthquakes and the normalized tectonic shear stress. We discover a new and previously unknown physical law, which we call the maximum magnitude law (MM-law). We discuss further the origin and physical background of this law and its importance in earthquake studies.

• Jezik: Angleški jezik
• Ključne besede: earthquakes, tectonic stress, tectonic strain, shear stress, maximum magnitude law, earthquake precursors
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: NTF - Naravoslovnotehniška fakulteta ; FGG - Fakulteta za gradbeništvo in geodezijo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2020
• Št. strani: 12 str.
• Številčenje: Vol. 141, art. 104208
• PID: 20.500.12556/RUL-138417
• UDK: 55
• ISSN pri članku: 0191-8141
• DOI: 10.1016/j.jsg.2020.104208
• COBISS.SI-ID: 32212227
• Datum objave v RUL: 20.07.2022

Gradivo je del revije

• Naslov: Journal of structural geology
• Skrajšan naslov: J. struct. geol.
• Založnik: Elsevier
• ISSN: 0191-8141
• COBISS.SI-ID: 25794304

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Projekti

• Financer: Drugi - Drug financer ali več financerjev
• Program financ.: Quantectum AG

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P1-0195
• Naslov: Geookolje in geomateriali