Evidence for surface rupture associated with the Mw 6.3 L'Aquila earthquake sequence of April 2009 (central Italy)

被引：143

作者：

Alessio, G. ^{[1
]}

Alfonsi, L. ^{[1
]}

Brunori, C. A. ^{[1
]}

Cinti, F. R. ^{[1
]}

Civico, R. ^{[1
]}

Cucci, L. ^{[1
]}

D'Addezio, G. ^{[1
]}

De Ritis, R. ^{[1
]}

Falcucci, E. ^{[1
]}

Fracassi, U. ^{[1
]}

Gasparini, A. ^{[1
]}

Gori, S. ^{[1
]}

Lisi, A. ^{[1
]}

Mariano, S. ^{[1
]}

Mariucci, M. T. ^{[1
]}

Montone, P. ^{[1
]}

Nappi, R. ^{[1
]}

Pantosti, D. ^{[1
]}

Patera, A. ^{[1
]}

Pierdominici, S. ^{[1
]}

Pignone, M. ^{[1
]}

Pinzi, S. ^{[1
]}

Pucci, S. ^{[1
]}

Vannoli, P. ^{[1
]}

Venuti, A. ^{[1
]}

Villani, F. ^{[1
]}

机构：

[1] Ist Nazl Geofis & Vulcanol, I-00143 Rome, Italy

来源：

TERRA NOVA | 2010年 / 22卷 / 01期

关键词：

CENTRAL APENNINES; FAULT; MODEL; PALEOSEISMOLOGY;

D O I：

10.1111/j.1365-3121.2009.00915.x

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

P>An earthquake of Mw = 6.3 struck L'Aquila town (central Italy) on 6 April 2009 rupturing an similar to 18-km-long SW-dipping normal fault. The aftershock area extended for a length of more than 35 km and included major aftershocks on 7 and 9 April and thousands of minor events. Surface faulting occurred along the SW-dipping Paganica fault with a continuous extent of similar to 2.5 km. Ruptures consist of open cracks and vertical dislocations or warps (0.1m maximum throw) with an orientation of N130 degrees-140 degrees. Small triggered slip and shaking effects also took place along nearby synthetic and antithetic normal faults. The observed limited extent and small surface displacement of the Paganica ruptures with respect to the height of the fault scarps and vertical throws of palaeo-earthquakes along faults in the area put the faulting associated with the L'Aquila earthquake in perspective with respect to the maximum expected magnitude and the regional seismic hazard.

引用

页码：43 / 51

页数：9

共 30 条

[1] Effect of Time Dependence on Probabilistic Seismic-Hazard Maps and Deaggregation for the Central Apennines, Italy [J].