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Risk identification and assessment

A qualitative or quantitative approach to determine the nature and extent of disaster risk by analysing potential hazards and evaluating existing conditions of exposure and vulnerability that together could harm people, property, services, livelihoods and the environment on which they depend. Performing risk, hazard and vulnerability assessments is a key disaster risk management activity.

This theme covers aspects related to hazard/vulnerability/climate risk assessment, disaster risk modelling and analysis.

Through UNICEF’s open-access GeoSight platform, decision-makers can visualise risk, compare layers, and identify priority areas for action.

Latest Risk identification and assessment additions in the Knowledge Base

Coastal view from a railway crossing overlooking the serene Tokyo Bay with a clear blue sky.
Research briefs
Groundwater recovery could help reverse sinking cities

Research in Osaka shows that groundwater recovery can reverse land subsidence, helping coastal cities adapt to sea-level rise. The study also reveals how underground fault lines influence groundwater flow and patterns of land uplift.

Conversation Media Group, the
Update
England needs 120% of normal rainfall to come out of drought

Summer droughts grab the headlines and public attention. When we have a dry period over the summer it’s everywhere, with brown lawns, hosepipe bans and cracked reservoir beds. But winter is when the UK refills its water stores.

Conversation Media Group, the
Using machine learning to build safer cities thumbnail
Documents and publications

This study models landslide susceptibility in eThekwini, South Africa, after the April 2022 floods, using Random Forest and SVM. Land use, elevation, NDVI, and lithology were key factors, with most housing located in low-susceptibility areas.

Nature Scientific Reports
Research briefs
Climate change amplifies flooding more than extreme precipitation

UFZ study combines climate and hydrological models to analyse flood peaks.

Helmholtz Centre for Environmental Research GmbH
Update
India: Struck by heat: a stocktake of 2026 summer

Between March and July 2026, news outlets reported 359 heat-related deaths in India, of which 86 were confirmed and 273 suspected, across 17 states and the Union Territory of Delhi.

HeatWatch
A stunning view of the Antarctic ice shelf, showcasing a vast expanse of icy cliffs over the ocean.
Research briefs
Antarctica’s ‘Doomsday Glacier’ could double sea-level rise forecasts

A startling new model reveals that Antarctica’s Thwaites Glacier could cause twice as much sea level rise as previously predicted, even without additional global warming.

University of California, Irvine
Gulf stream. North Atlantic Drift. System of warm currents in the North Atlantic. 3d illustration. Elements of this image furnished by NASA.
Research briefs
Atlantic current collapse risk is missing from climate plans

Ocean currents are changing, with global climate implications, yet governments remain unprepared. Of 91 national adaptation plans submitted to the UN, only two mention the key Atlantic current, and neither outlines action for a possible collapse.

Conversation Media Group, the
Screen displaying real-time COVID-19 case data with global map and statistics.
Update
Knowing where climate hazards occur is only half the story

Climate hazards affect over half the world’s population, but vulnerability varies widely. In 2024, 1.5 billion people were both exposed to climate-related hazards and highly vulnerable to their impacts, limiting their ability to cope and recover.

World Bank, the
 Cascading ice–rock avalanche multi-hazard early warning in the Bhote Koshi–Trishuli River Corridor  thumbnail
Documents and publications

This article reconstructs the 26 August 2026 Bhote Koshi-Trishuli cascade in Nepal, analyzes downstream propagation, & evaluates early warning system elements, proposing a two-stage framework for hazard detection & emergency response in mountain corridors

Multidisciplinary Digital Publishing Institute
Event-Level Attribution of Wildfire Ignition Cause: A Machine-Learning Approach thumbnail
Documents and publications

This study develops a machine-learning classification framework (MLCF) to attribute the cause of wildfire ignitions as either human- or lightning-induced on a global, event-level scale.

American Geophysical Union
The 2025 Southeast Asian extreme rainfall: role of anthropogenic climate change thumbnail
Documents and publications

This study investigates the role of anthropogenic climate change in the record-breaking extreme rainfall of November 2025 that affected northern Sumatra (Indonesia), Peninsular Malaysia, and southern Thailand.

Royal Meteorological Society
Update
Why do pipes burst in heatwaves - and what can be done?

When the ground heats up, it expands and moves - putting strain on underground pipes which are already under pressure, causing them to buckle and split.

British Broadcasting Corporation (BBC)
Tropical cyclone risk evolution in the Philippines and Vietnam thumbnail
Documents and publications

This report was carried out at the request of the Directorate-General for European Civil Protection and Humanitarian Aid Operations (DG ECHO) to inform the preparedness and anticipatory action frameworks to DG ECHO’s Regional Office in Bangkok.

European Commission Joint Research Centre
Update
Satellite images show how the Nepal flood disaster unfolded

There is increasing interest in the role of unusually warm conditions and glacial permafrost instability. Warming can increase meltwater penetration into the crevasses of glaciers and weaken ice-rock bonds.

Conversation Media Group, the
Drought in the Amazon River, a consequence of the lack of rainfall in the Amazon
Research briefs
Scientists find key to predicting some El Niño events 12 months ahead

Scientists have identified the conditions that make it possible to predict some El Niño and La Niña events up to a year in advance, potentially giving communities and decision-makers significantly more time to prepare for weather extremes.

University of Melbourne
An aerial view shows the Rasuwagadhi flood affecting the lower part of the riverbank, hydropower substation, and many houses in Rasuwa, Nepal, on July 08, 2025.
Update
Can AI save lives before the next flood?

Nepal–China flood exposes a missing dimension in the global AI debate. As world leaders focus on future threats, the more immediate challenge is to use AI to anticipate disasters, accelerate cross-border warnings and protect human life today.

Global Policy Journal
Research briefs
Daily weather in glacier models

Running a global glacier model at daily rather than monthly resolution across more than 12,500 glaciers reproduces observed mass loss better and projects a 5 to 10 per cent larger glacier contribution to 21st-century sea-level rise.

ETH Zurich
Maui wildfire emergency management reform: Three years after Lahaina — An independent assessment of framework reform progress and remaining gapsDocuments and publications
Maui wildfire emergency management reform: Three years after Lahaina — An independent assessment of framework reform progress and remaining gaps
Island Security Policy Institute
Seismic assessment of unreinforced masonry façades from images using macroelement-based modeling thumbnail
Documents and publications

This study presents an image-based framework for rapid seismic assessment of unreinforced masonry façades using computer vision, photogrammetry, and semantic segmentation to automate 3D modeling and vulnerability analysis from multi-view RGB images.

Nature Communications (Nature)
Training event
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Online
The course is designed particularly for postdocs and advanced PhD students working with climate extremes, hazards, risk assessment and related environmental time series.
The 2026 seismic hazard model for Finland thumbnail
Documents and publications

This study presents seismic hazard maps for Finland, northern Europe, based on the earthquake catalog FENCAT updated until the end of 2021 and a 2025 three-level hierarchical zoning model.

Natural Hazards (Springer)
Past-to-future drought across hydrographic microregions in Northeast Brazil: SPI-based diagnostics and bivariate (duration–severity) risk under CMIP6 scenarios thumbnail
Documents and publications

This study used observed precipitation and QDM-corrected CMIP6 simulations to examine future meteorological drought in Brazil, across 82 hydrographic microregions under SSP2-4.5 and SSP5-8.5.

Natural Hazards (Springer)
São Tomé and Príncipe country climate and development report: Building resilience in a boutique biosphere country thumbnail
Documents and publications

This Country Climate and Development Report (CCDR) shows that ambitious climate action can protect people and livelihoods while unlocking new engines of inclusive growth.

World Bank, the
Update
Brings wildfire information, analysis and risk insights

The platform combines NASA fire observations with official reports where available. Users can follow locations through email alerts, explore background articles and contribute photographs or videos for review before publication.

Watch Fire
Discover the vibrant coastline of American Samoa with lush forests and turquoise waters in this stunning aerial view.
Update
Hawai‘i’s PDC and Samoa to strengthen resilience

As El Niño-driven drought and extreme weather threaten Pacific Island communities, Hawai‘i and Samoa partner on a disaster preparedness assessment to share knowledge and strengthen risk reduction, emergency readiness and resilience across the region.

Pacific Disaster Center
Statewide summary: California’s fifth climate change assessment  thumbnail
Documents and publications

California’s Fifth Climate Change Assessment summarizes climate projections, hazards and vulnerabilities across the state, highlighting increasing risks and adaptation approaches for California’s natural, built and social systems.

California Governor’s Office of Land Use and Climate Innovation
Asia-Pacific climate report 2026: Coastal risks on the rise: actions for a resilient future thumbnail
Documents and publications

This report examines the risks facing the coastal areas of Asia and the Pacific and details how building resilience can protect development and unlock new opportunities.

Asian Development Bank (ADB)
A stark landscape of cracked dry earth beneath a clear blue sky, depicting arid climate and drought.
Update
Subsidence claims: after drought, ground can shrink, swell or collapse

A crack appears beside a window after weeks of scorching weather. As much as you might hope the ground beneath your house will recover with the first rain, the effects of a dry summer can continue long after temperatures fall.

Conversation Media Group, the
Sixty years of research on land subsidence and sea-level change: a systematic review of global literature with a regional lens on the Gulf of Guinea, Africa  thumbnail
Documents and publications

This study presents a systematic review of 2171 publications spanning 1964–2025, combining a global perspective with a regional focus on the Gulf of Guinea, a critically underrepresented region within the African continent.

Land (MDPI)
The anthropogenic fingerprint on emerging infectious diseases thumbnail
Documents and publications

This paper consolidates 58,319 outbreak event records for 32 diseases and systematically test how 16 hypothesized social and environmental drivers impact outbreak geographies, while accounting for detection and reporting biases.

Springer Nature
The assessment of nature-related risks: From ecosystem services vulnerability to economic exposure and financial disclosures thumbnail
Documents and publications

This paper describes how to use the Integrated system for Natural Capital Accounts to measure and account for ecosystem vulnerability, which constitutes the first component of nature-related risk.

Ecological Economics (Elsevier)
Research briefs
Simulations explore nuclear mitigation of asteroid threats

Lawrence Livermore National Laboratory (LLNL) researchers are developing three-dimensional simulations to examine how a nuclear device could be used to deflect or potentially disrupt an asteroid threatening Earth.

Lawrence Livermore National Laboratory
Majestic glacier flowing between snow-capped mountains by a serene lake in Alaska's pristine wilderness.
Update
Alaska’s monster tsunami sent water 1,580 feet up a mountain

2025 landslide-triggered mega-tsunami in Alaska shows growing risks as glaciers melt. Scientists propose a progressive alert system using weather, glacier changes and seismic activity to warn communities and vessels of potential landslides and tsunamis.

Conversation Media Group, the
Update
Nepal: Supporting recovery, reconstruction and resilience in Nepal

While Nepal has invested significantly in GLOF monitoring, the August flood has highlighted the need to broaden this effort through earth observation, wider hazard monitoring, risk communication and transboundary data-sharing to identify evolving risks

ODI Global
Institute for Social and Environmental Transition - Nepal
cfe-dm-dmrh-vanuatu2026.pdf thumbnail
Documents and publications

This Disaster Management Reference Handbook provides a comprehensive profile of Vanuatu’s national DM structure, policies, plans, and institutions, as well as background information on the country, its natural hazards.

Center for Excellence in Disaster Management & Humanitarian Assistance (CFE-DMHA)
from-risk-knowledge-to-action-a-systematic-review-and-evidence-map-of-institutionalization-deficits-in-non-structural-urban-flood-risk-reduction.pdf thumbnail
Documents and publications

This study applies an a priori scaffold of eight institutionalisation pathways and a cross-cutting coordination pathway to develop an institutionalisation-deficit framework.

International Journal of Disaster Risk Reduction (Elsevier)
A decision-support tool for fire risk assessment and mitigation of motorway bridges: A European case study thumbnail
Documents and publications

This study aims to develop a risk-based model for assessing fire hazards in highway bridges, intended as a practical decision-support tool for infrastructure managers to identify critical scenarios and prioritise mitigation strategies.

International Journal of Disaster Risk Reduction (Elsevier)
Recurrent hotspot zones of projected heat and dry-spell persistence across MENA thumbnail
Documents and publications

This study identifies recurrent hotspot zones of projected heat and dry-spell persistence across the Middle East and North Africa (MENA).

npj Natural Hazards (Nature)
Update
NZ in ‘uncharted territory’, with more extreme weather events ahead

New Zealand is set to see a future of more frequent and extreme droughts, heatwaves and fires, along with bigger floods.

Conversation Media Group, the
Houses with wildfire smoke in the background
Research briefs
Same-day heat wave and wildfire smoke exposure is increasing worldwide

A 20-year study found that global exposure to wildfires and heat waves occurring on the same days rose by 287 million from 2000 to 2019, with over half the world’s population experiencing these combined events.

Monash University
Immersive geospatial learning for flood disaster education: Integrating GIS, augmented reality, spatial literacy, and ecopedagogy thumbnail
Documents and publications

This study investigates the development and evaluation of immersive geospatial learning materials for flood disaster education, integrating GIS, Augmented Reality (AR), spatial literacy, higher-order thinking skills, and ecopedagogical perspectives.

Institute for the Development of Educational and Ecological Alternatives Inc.
Sensitivity of observed changes in compound climate extremes in Europe to event definition thumbnail
Documents and publications

This article assesses how definitions affect detected changes in compound climate extremes in Europe, finding that event frequency, intensity, and trends are sensitive to metric choice and recommends careful selection of event definitions for monitoring.

npj Natural Hazards (Nature)
Diagnosing region-specific flood influencing factors in a volcanic island using explainable machine learning thumbnail
Documents and publications

This study applies a grid-based, explainable machine learning framework to Jeju Island and finds that rainfall, groundwater, and proximity to water bodies are key, regionally variable factors for flood occurrence, supporting nuanced flood risk management.

Natural Hazards (Springer)
Meetings and conferences
Online
In response to the International Day for Disaster Risk Reduction 2026, CCYPS and HADEUS Vietnam are organizing the webinar Resilience Starts at Home to raise awareness of risks within people’s own homes.
Update
USA: Is coastal Alaska ready for the next tsunami?

Alaska scientists have launched an interactive tsunami map covering 66 coastal communities, highlighting flood risks and preparedness gaps to help local leaders strengthen evacuation planning and protect lives.

Alaska Earthquake Center (University of Alaska Fairbanks)
JAKARTA, INDONESIEN
Update
Indonesia: Cities are sinking

As cities continue to sink, we need to examine these changes at the local scale. Averages across a whole city can tell us how big the problem is, but knowing where the land is sinking fastest – and who lives there – is essential to deciding for response.

Conversation Media Group, the
Meetings and conferences
Online
Online, 14 October 2026, 13:30–16:40 Costa Rica time. The University of Costa Rica’s XV Research Conference on Disaster Risk Management presents recent research from Costa Rica, Paraguay, Chile and the United States. Free and open to all.
Update
Net zero timing and extreme El Niños

New modelling suggests the tropical Pacific could stay in an El Niño-like state for centuries even after net zero is reached, with a larger share of El Niño events turning extreme. The longer emissions take to fall, the more of them.

Conversation Media Group, the
Modeling cascading drought effects in a national food supply network using minimum cost flow thumbnail
Documents and publications

This study presents a spatial network optimization approach to model extreme drought impacts on Sweden’s food supply chain, revealing that supply losses in the south translate to unmet demand in the north and highlighting new bottlenecks in distribution.

Frontiers in Sustainable Food Systems
Research briefs
Türkiye 2023 earthquake: When doctors are also survivors

A study of doctors’ experiences during the 2023 Türkiye earthquakes highlights gaps in disaster preparedness and calls for practical training, psychological support and policies that recognize healthcare workers may also be disaster survivors.

Bioengineer.org