How it Works


How does GEM Nexus work?

GEM Nexus is centered around groups:

  • Global groups working on Hazard, Exposure, Physical and Social Vulnerability, Risk and Impact, Testing and Evaluation, GEM’s risk assessment platform and software components, the bodies of the GEM Foundation
  • Regional groups which represent the various GEM Regional Programmes.

Each group has its own group space, with a public front-end and a private back-end that contains tools and features for intra- and inter-group collaboration.

Groups share as much possible with the GEM Community, but mostly work in their own private space within their group until reports or other deliverables are more finalized. Global groups have a type of blog through which they publish ‘POSTS’. Posts can contain short updates, but often also reports (of deliverables), presentations or other resources. All groups can add their upcoming meetings (virtual or real) to the common agenda.

Who can join?

Anyone that has an interest in what GEM is doing and would like to follow developments and contribute to the effort, can sign up and join our online global community. By doing so, you..

  • get access to reports, presentations and updates of GEM groups that they share with you to show you their progress, ask for your feedback or to allow you to build on their work
  • provide feedback on group posts, share your knowledge related to the groups of your interest, and contribute to discussions that help improve the various components of the GEM effort
  • get in touch with others of the GEM community


How does group membership work?

Membership of groups is currently not open. Groups in Nexus are the online presence of ongoing global projects, regional programmes or technical working groups. These groups collaborate through the private backend of their group-space. Members of groups are thus participants in such projects/programmes and are commonly invited by the Group Manager.

If you are collaborating in GEM and/or think you should be part of a group, but have not been invited, please contact the Group Manager of your group(s) of interest. His or her email address can always be found at the homepage of the group. You can also write us an email.

Read more about groups in the help page; section A-2.

How do I see the information that is most relevant for me?

The most recent posts from the various global groups are advertised in the left column on the homepage, so you can easily see what is interesting for you to look at / download, and provide feedback on.

The right column of the homepage shows upcoming meetings posted by the groups, and the latest news.

How do I follow groups?

You can follow the posts of the different global groups working on thematic areas through email notification or an RSS feed; at their homepage you will see an envelope and the rss-icon. To subscribe to more groups at once, go to your personal settings and then ‘email notifications’ to choose the groups of your interest. Note that if they do not post messages, you will receive no emails. In order to allow debate to take place on thematic areas at global level, at the moment regional groups do not post messages to the community, and can therefore not be followed.

Where do I comment? And what is rating?

Any user that is logged in can comment on a post. In a comment, you can include text and links to other websites. Whenever you submit a comment, your name is displayed, to make sure that debate is transparent.

You can also rate the comment of others, by clicking on the green or red buttons. The ratings will help a group to understand to what extent a comment should be considered.

Who owns the copyright of posts and comments?

This is explained in the Terms of use; the knowledge and information shared by groups and all contributions from the GEM community are invaluable to advancing seismic risk assessment. Contents, including contributions such as comments and posts can be re-used according to the CC-By-Sa license.

Who is the typical GEM Nexus user?

Most users of GEM Nexus are working in the field of hazard and risk assessment and many of them have a technical background. Beyond that, we hope that there is no such thing as an average user. GEM reaches across disciplines, perspectives, contexts, borders, and time zones. Diverse participants will make this website a place where everyone comes together to think, work, and build toward a collective good.

What is a user profile?

A user profile displays basic information about you, plus the information you decide to share about yourself and a link to the comments you have submitted. We appreciate you adding your photo to create a more vivid community around GEM.

Because we want to promote a culture of trust, all profiles can be browsed under users. You can also contact a fellow member of the GEM community via a direct message.

I am a group member and have a question about use of a feature, where do I go?

If your answer cannot be found in the texts that introduce the feature, or in the help-page, do not hesitate to contact us.

Is your question not in this list?

Drop us an email and we will answer it and add if it also useful for others, we will add it here.