Publication Date:
2020-12-14
Description:
The Global Earthquake Model (GEM) aims to develop uniform, openly
available, standards, datasets and tools for worldwide seismic risk assessment through
global collaboration, transparent communication and adapting state-of-the-art science.
GEM Faulted Earth (GFE) is one of GEM’s global hazard module projects. This paper
describes GFE’s development of a modern neotectonic fault database and a unique
graphical interface for the compilation of new fault data. A key design principle is that of
an electronic field notebook for capturing observations a geologist would make about a
fault. The database is designed to accommodate abundant as well as sparse fault obser-
vations. It features two layers, one for capturing neotectonic faults and fold observations,
and the other to calculate potential earthquake fault sources from the observations. In order to test the flexibility of the database structure and to start a global compilation, five
preexisting databases have been uploaded to the first layer and two to the second. In
addition, the GFE project has characterised the world’s approximately 55,000 km of
subduction interfaces in a globally consistent manner as a basis for generating earthquake
event sets for inclusion in earthquake hazard and risk modelling. Following the subduction
interface fault schema and including the trace attributes of the GFE database schema, the
2500-km-long frontal thrust fault system of the Himalaya has also been characterised. We
propose the database structure to be used widely, so that neotectonic fault data can make a
more complete and beneficial contribution to seismic hazard and risk characterisation
globally.
Description:
Published
Description:
111–135
Description:
2T. Tettonica attiva
Description:
3T. Pericolosità sismica e contributo alla definizione del rischio
Description:
4IT. Banche dati
Description:
JCR Journal
Description:
restricted
Keywords:
Global Earthquake Model
;
Fault database
;
Earthquake fault source
;
GEM Faulted Earth
;
04. Solid Earth::04.04. Geology::04.04.01. Earthquake geology and paleoseismology
;
04. Solid Earth::04.04. Geology::04.04.09. Structural geology
;
04. Solid Earth::04.06. Seismology::04.06.01. Earthquake faults: properties and evolution
;
04. Solid Earth::04.06. Seismology::04.06.11. Seismic risk
;
04. Solid Earth::04.07. Tectonophysics::04.07.02. Geodynamics
;
04. Solid Earth::04.07. Tectonophysics::04.07.04. Plate boundaries, motion, and tectonics
;
04. Solid Earth::04.07. Tectonophysics::04.07.07. Tectonics
;
05. General::05.02. Data dissemination::05.02.02. Seismological data
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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