Original Paper

Natural Hazards

, Volume 72, Issue 3, pp 1409-1427

First online:

Development of the OpenQuake engine, the Global Earthquake Model’s open-source software for seismic risk assessment

  • Vitor SilvaAffiliated withGEM Foundation Email author 
  • , Helen CrowleyAffiliated withGEM Foundation
  • , Marco PaganiAffiliated withGEM Foundation
  • , Damiano MonelliAffiliated withSwiss Seismological Service, ETH
  • , Rui PinhoAffiliated withGEM Foundation

Rent the article at a discount

Rent now

* Final gross prices may vary according to local VAT.

Get Access


The Global Earthquake Model aims to combine the main features of state-of-the-art science, global collaboration and buy-in, transparency and openness in an initiative to calculate and communicate earthquake risk worldwide. One of the first steps towards this objective has been the open-source development and release of software for seismic hazard and risk assessment called the OpenQuake engine. This software comprises a set of calculators capable of computing human or economic losses for a collection of assets, caused by a given scenario event, or by considering the probability of all possible events that might happen within a region within a certain time span. This paper provides an insight into the current status of the development of this tool and presents a comprehensive description of each calculator, with example results.


Seismic hazard Seismic risk Loss assessment Open-source