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visit our website:globalquakemodel.org

And feel free to ask your own questions by contacting us:info@globalquakemodel.org

Free, opensource and publically available

Combines hazard and risk in a single software

Allows scenario and probabilistic hazard and risk analysis

Considers a wide spectrum of uncertainties

Allows calculations at different scales

Extensively tested

Can be run on a laptop or cloud of computers

Methodologies are fully documented

Compatible with tools for the development of hazard and vulnerability models developed by

GEM

Compatible with various existing hazard, vulnerability and exposure models.

FAQs

FEATURES AT A GLANCE

Openquake

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Are you interested in getting involved with GEM or finding out more about what we are building?

An abstract of a preliminary integrated risk assessment of Turkey performed by Sevgi Ozcebe, a PhD Student at the UME school collaborating with GEM. The topic will be further discussed during the conference, learn more from the full agenda available in the Stay Tuned section of our website.

”Turkey, being located in a highly seismically active region, has experienced several devastating earthquakes causing economical losses and physical damage, along with great numbers of casualties. This is due not only to the high seismicity of the region but also due to the high vulnerability of the built environment.

This study uses the most recent models to estimate the earthquake hazard and losses due to earthquake in Turkey. The results of this study are important to understand how the earthquake hazard

and risk are distributed across Turkey and how this risk can be effectively managed for a sustainable development of the country. The estimated risk profile then can be used to strengthen the current buildings, to propose design methods for new buildings and to establish an effective disaster management.

The OpenQuake engine, an open source platform developed within GEM, is allocated to calculate the seismic hazard and seismic risk for Turkey”

Seismic design

Loss assessment from local

to national

Modeling exposure in hand

Will GEM provide a single global model of hazard for use by engineers in any country in the world?

There is no national model for the country I am interested in. Should I use a regional or global model?

Disaggregation plots for the intensity measure type and return period I need are not available. How can I get these?

How do I obtain a copy of the OpenQuake-engine?

What sort of hazard and risk analyses can I run with the OpenQuake-engine?

How can I be sure the OpenQuake-engine is giving the right results?

Will the tools be available for everyone?

What is the level of expertise required to use these tools for building data collection?

How much time does it take to cover a large amount of buildings with the Android tool?

The OpenQuake-platform will host a number of national, regional and global models of seismic hazard and will provide users with a set of pre-computed results from these models, including outputs that are of interest to engineers when designing structures: uniform hazard spectra and disaggregation plots at different return periods.

Engineers will be able to download the hazard results they need in a number of different formats. Details on each of the available models will be provided in order to guide engineers in selecting the model that is most “fit for purpose”.

The Inventory Data Capture Tools developed within one of GEM’s global components are empowering users to collect information regarding the built-up environment, which is fundamental to the development of exposure models. These tools include a QGIS plugin (named BREC) for satellite data processing, or Windows and Android applications to collect information building-by-building.

Recently, as part of the Risk Analysis course at the Understanding and Managing Extremes School in Pavia (Italy), a group of 40 students employed the Android tool to create a detailed exposure model of downtown Pavia, which was used together with a hazard and vulnerability model to estimate average annual economic losses. These models were also developed or collected within regional partnerships, and the calculations were carried out using the OpenQuake-engine, the open-source software for seismic hazard and risk analysis.

The OpenQuake-engine can implement hazard and risk analyses for single scenarios, allowing the modeler to identify the potential losses from an individual earthquake, or it can undertake a probabilistic analysis of hazard and risk, telling the modeler the likelihood of observing a specific level of ground shaking and/or earthquake loss within a given time. It is even possible to use the OpenQuake-engine to calculate the benefit-cost ratio of retrofitting one or more buildings in order to mitigate the potential earthquake risk.

Analysis can be undertaken for a specific site, for a city or regional scale analysis and even at country or multi-national level. These functionalities combine to make the OpenQuake-engine a powerful and dynamic tool for investigating the potential impacts of earthquakes in your region.