6th Colloquium on historical earthquakes & paleoseismology studies

Session

Session 2.2

25 Oct 2018, 08:40

Han-sur-Lesse

20. Surface rupture associated with a moderate intraplate earthquake: the Mw 6.2 Parina event (December 1st, 2016) in the Peruvian Altiplano

Mr Stéphane BAIZE (Institut de Radioprotection et Sûreté Nucléaire)

25/10/2018, 08:40

Oral Preference

Fault displacement and Seismic hazard analyses employ empirical relationships to predict potential earthquake magnitude ("scaling relationships"; e. g., Wells and Coppersmith, 1994), surface slip), probability functions of surface rupture and surface slip amount (e. g., “conditional probability of rupture” and "probability of exceedance", respectively; see Youngs et al; 2003). Those...

23. 30 October 2016-type earthquakes rupturing the Mt. Vettore-mt. Bove fault system (Central Italy) during the Holocene

Dr Daniela Pantosti (Istituto Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata 605, Rome, Italy)

25/10/2018, 09:00

Oral Preference

A campaign of paleoseismological investigations was performed on the nearly 22 km-long coseismic surface rupture of the 30 October 2016 Mw 6.5 normal-faulting earthquake in Central Apennines. The main goal was the definition of the maximum magnitude, the average rate of displacement and the frequency of seismic events on the Mt. Vettore-Mt. Bove fault system (VBFS hereinafter). We show the...

6. Assessing Holocene tsunamigenic subduction earthquakes in the Northern Chile Seismic Gap and their effects on human occupations. Lessons from the past for the future

Prof. diego salazar (universidad de chile)

25/10/2018, 09:20

Oral Preference

The subduction margin of the Central Andes is characterized by the occurrence of large earthquakes associated with the convergence of the Nazca and South American Plates at about 6.5-7.0 cm/yr (DeMets et al., 1994; Angermann et al., 1999; Béjar-Pizarro et al., 2010). This convergence rate is responsible for causing giant tsunamigenic subduction earthquakes like the 1868 Mw 8.8 and 1877 Mw 8.8...

26. Surprisingly high post-glacial fault slip rates in a slow deforming area: the case of the Culoz fault system (French Jura Mountains)

Dr Hervé Jomard (IRSN)

25/10/2018, 09:40

Oral Preference

The north-western Alps foreland (Jura Mountains) is considered as still experiencing distal effects of the Alpine collision, resulting in a moderate but significant seismicity. This study focuses on the Culoz strike slip fault, developing from the Jura Mountains to the West, to the Chautagne swamp and through Lake Le Bourget to the East. Because erosion and anthropogenic activities erased most...

37. The paleoseismological dataset of Switzerland

Katrina Kremer (Swiss Seismological Service, Institute of Geophysics, Sonneggstrasse 5, 8092 Zurich, Switzerland)

25/10/2018, 10:00

Oral Preference

Earthquake hazard models are based on data from the instrumental and historical records. However, in regions where deformation rates are low, the recurrence rate of large earthquakes may exceed the timescale covered by these datasets. Thus, it is crucial to collect paleoseismological information over longer timescales. In Switzerland, a considerable number of studies has been performed...