WP6: multi-hazard dynamics
Task leads: King's College London, Amrita
Task 6.1: collate case histories of landslide multi-hazard cascades/coincidences
Task 6.2: map potential multi-hazard scenarios
Key deliverables
- Database: landslide-related multi-hazard case histories for pilot-study areas. LANDSLIP web site; DesInventar for selected studies
- Report: table and explanatory text of potential multi-hazards in pilot-study areas
WP6 examines multi-hazard scenarios that involve landslides. For example, an earthquake might trigger landslides, or hydrological conditions might make a region more susceptible to landslides so that if an earthquake occurs, the area will be more susceptible to landslides.
We will compile potential multi-hazard cascades and coincident multi-hazard scenarios in our two pilot-study areas through two ways:
- studying case histories of past events, including, in conjunction with WP5, their impact
- looking at global theoretical potential interactions between hazards
For example, in work done recently we examined theoretical triggering relationships between 21 different hazards.
| Colour code | Nature of secondary hazard (following one occurence of primary hazard) |
|---|---|
| Potential for a small number of hazard events (individual or a few occurrences) | |
| Potential far a large number of hazard events (multiple occurrences) | |
| Symbol | Explanation |
 |
Hazard triggers secondary hazard |
 |
Hazard increases the probability of secondary hazard |
 |
Hazard both triggers and increases the probability of secondary hazard |
| Hazard group | Hazard | Code |
|---|---|---|
| GEOPHYSICAL | Earthquake | EQ |
| Tsunami | TS | |
| Volcanic eruption | VO | |
| Landslide | LA | |
| Snow avalanche | AV | |
| HYDROLOGICAL | Flood | FL |
| Drought | DR | |
| SHALLOW EARTH PROCESSES | Regional subsidence | RS |
| Ground collapse | GC | |
| Soil (local) subsidence | SS | |
| Ground heave | GH | |
| ATMOSPHERIC | Storm | ST |
| Tornado | TO | |
| Hailstorm | HA | |
| Snowstorm | SN | |
| Lightning | LN | |
| Extreme temperature (hot) | ET (H) | |
| Extreme temperature (cold) | ET (C) | |
| BIOPHYSICAL | Wildfire | WF |
| SPACE | Geomagnetic storm | GS |
| Impact events | IM |