Illustrative: a joint probability density whose dependence shifts over time

Risk Academy, led by the Nexus Consortium · Hazards, Disasters and Resilience

Multi-hazard and compound risk assessment

Disasters rarely arrive one hazard at a time: an earthquake triggers landslides and a dam failure, a cyclone brings wind, surge and rain together, a drought dries the fuel a fire then burns.

Map multi-hazard and compound risk assessment on a real place

01Model

The model, step by step

The model

From two margins to a joint return period: how dependence between surge and rainfall multiplies the chance of a compound flood

DataModelGateDecision

7 steps
Joint return period with dependence
40 years
Gumbel copula parameter
1.67
Upper tail dependence
0.48
Joint exceedance per year if independent
0.250%
/

The model From two margins to a joint return period: how dependence between surge and rainfall multiplies the chance of a compound flood

02Scope

What the discipline covers

The subtopics its courses and labs teach.

Multi-hazard and compound risk assessment: 0 primary courses open, 0 in preparation and 0 also taught here, across 9 subtopics. Courses: none yet.
Multi-hazard and compound risk assessment at a glance
  • Open, 0
  • In preparation, 0
  • Subtopics, 9
Course codes from the curriculum; study levels L1 to L4.
Courses
In development
Levels
In development
Labs
In development
  • Hazard interactions: triggering, amplification and coincidence
  • Compound events and joint probabilities
  • Consecutive disasters and changing vulnerability
  • Cascading impacts across exposed systems
  • The UNDRR and ISC Hazard Information Profiles
  • Multi-hazard risk indices and maps
  • Dependence modelling with copulas
  • Natech events and technological cascades
  • Multi-hazard early warning
03The discipline

The field and its scope

For risk analysts, modellers and planners who assess places exposed to more than one hazard and need methods that treat hazards jointly rather than adding single-hazard results.

04Measures

Quantities and units

05Methods

Methods and their limits

Each method is listed with what it assumes and where it fails.

06Debates

What the field debates

07Bodies and data

Bodies that set practice, and the data they publish

Bodies and standards are named so learners can find and apply their published work; the Academy teaches their use and links to the publisher, and no affiliation is implied.

08Simulator

Run the discipline's simulator

Multi-hazard and compound risk assessment's own model, as a live chart: move each parameter and read how the outputs respond.

09Maps

Build a twin of any place

Search any place or open the world; the layers and generators follow multi-hazard and compound risk assessment on the planet map, the globe and in 3D.

The Kahramanmaras earthquake sequence of 2023: a flat plan of the faculty twin. Terrain 59 to 3,044 m; 2 reference earthquakes, M7.5 to M7.8; 3,643,786 people in the box, 2020; Earthquakes M4.5 and above, past week: read live when the 3D twin opens; USGS ShakeMap intensity contours: read live when the 3D twin opens. Contours every 500 metres from the elevation grid; population count 2020, worldpop 1 km as four classes per cell (edges 11, 47, 405); reference earthquakes as marks.
The Kahramanmaras earthquake sequence of 2023, Turkiye. Flat plan of the same data: relief, the two epicentres with magnitude and depth, the WorldPop count grid and the numbers below. The 3D twin opens on devices with WebGL once its data and library have been checked.
  • Terrain 59 to 3,044 m
  • 2 reference earthquakes, M7.5 to M7.8
  • 3,643,786 people in the box, 2020
  • Earthquakes M4.5 and above, past week: read live when the 3D twin opens
  • USGS ShakeMap intensity contours: read live when the 3D twin opens
Credits and dates per layer are listed under the stage. Relief in the twin is exaggerated ×1.5 for legibility.

Drag to move, right drag or Shift with a drag to turn and tilt, Ctrl with the wheel to zoom. Keyboard: arrows move, Shift with arrows turn and tilt, + and - zoom, 0 resets, V steps through the views, Escape clears.

Flat plan of the same data: relief, the two epicentres with magnitude and depth, the WorldPop count grid and the numbers below. The 3D twin opens on devices with WebGL once its data and library have been checked.

The boundaries, names and designations shown do not imply any judgement on the legal status of any territory, or any endorsement or acceptance of such boundaries. Countries: Natural Earth (public domain).

10Research hub

Research hub: papers, preprints and datasets

Open scholarly sources searched with the subject terms of Multi-hazard and compound risk assessment.

Search termsMulti-hazard and compound risk assessment; Hazard interactions: triggering, amplification and coincidence; Compound events and joint probabilities; Consecutive disasters and changing vulnerability; Cascading impacts across exposed systems; The UNDRR and ISC Hazard Information ProfilesDerived from the Risk Academy page on Multi-hazard and compound risk assessment.

  • OpenAlexlisted for reference; not queried
  • Crossreflisted for reference; not queried
  • DataCitelisted for reference; not queried
  • Zenodolisted for reference; not queried
  • arXivlisted for reference; not queried
  • Europe PMClisted for reference; not queried
  • OpenAIRE Graphlisted for reference; not queried

No source is enabled for live display on this site yet: the sources are listed for reference and none is queried. Once the publisher of record enables a source after its terms are reviewed, recent works are listed here. Metadata and links only: title, authors, venue, year, type, open-access status and licence as each source records them; works are listed for orientation, not reviewed or endorsed.

11Hub

Research and tools

Research and preprints as they are published, by discipline, with the faculty's other tools.

The hub lists the newest research and preprints for Multi-hazard and compound risk assessment, each with its source and date. Open the research hub

12Courses

Courses in this discipline

Courses for this discipline are in development; until they open, study it through the connected courses and open lessons below.

The course catalogue lists every open course of the Academy.

13Technology in this area

How technology helps and what risk it brings

14Achievements

Achievements in this discipline

  1. Course achievements

    One for each course with this as its primary discipline, earned when you pass the course's assessed activities.

  2. Department: Disaster Risk Reduction and Early Warning

    Earn two discipline achievements in the Department of Disaster Risk Reduction and Early Warning. In development.

An achievement is a record of the learning completed and assessed here. How recognition works.

15Where this is practised

Where the subject is practised

A field platform page on this subject is in development.

16Practised in

The three Nexus Foundry systems where it is practised

17Across the ecosystem

Across the ecosystem

19References

Core references and where to begin

Start with Kappes, then Gill, then Pescaroli.

NRNexus Reports gateway · GW-ACADEMY

Contribute to Nexus Reports from this page.

Nexus Reports is the Consortium's quarterly publication. What you know about this subject can become evidence, a case or a correction in the next edition, credited to you and published under CC BY 4.0 where it is your own work.

Risk Academy
Multi-hazard and compound risk assessment

Prepare with a related course

Open courses in connected disciplines teach the methods this discipline will build on.

Skip to toolbar