R-P05 · TOPIC · crisis-informationGRF dossier · service level R0
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Topic dossier · Information Integrity and Public Trust

Crisis information

In a disaster, conflict or health emergency, accurate information is a matter of safety. Networks fail, rumours spread, and authorities, media and communities compete to be heard. Crisis information governance decides who informs, through which channels, and how false claims are handled without suppressing legitimate questions. This page sets out how crisis information holds or fails, the records that show it, and who decides.

01In brief

The short answer.

Crisis information is the safety-critical information people need in disasters, conflicts and health emergencies, and the channels that carry it. Networks fail, rumours spread and shutdowns cut access. Emergency and humanitarian agencies, governments, broadcasters and platforms decide how information flows.

02Geography

Hazards now in Eastern Europe.

For crisis information, in GRF's situational-awareness reading, the map opens on population density, flood water and active fires with clouds now from NASA GIBS, framed on Eastern Europe; 3 further NASA layers wait in the list.

The interactive map needs JavaScript; the layer list and sources are below.

Layers 3

Hazards now, for this page

Latest available

NASA GIBS / EOSDIS · ASTER GDEM (METI, NASA) · Blue Marble (NASA) · © OpenStreetMap contributors (ODbL) · Natural Earth

Loading the latest NASA imagery.

Drag to move. Ctrl or ⌘ and scroll, pinch or the buttons to zoom; hover for the values under the pointer; reset returns to the region.

For crisis information, in GRF's situational-awareness reading, the map opens on population density, flood water and active fires with clouds now from NASA GIBS, framed on Eastern Europe; 3 further NASA layers wait in the list.Satellite and model products as NASA publishes them, each with its own date; indicators, not assessments of any place; claim ceiling INTEGRATED.

Data: NASA GIBS · ASTER GDEM · Blue Marble · © OpenStreetMap contributors · Natural Earth · NASA EONET · GDACS · NOAA GOES-East ABI GeoColorSources and licences

  • We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS). Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS). Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • Center for International Earth Science Information Network (CIESIN), Columbia University. 2018. Gridded Population of the World, Version 4 (GPWv4): Population Density, Revision 11. NASA Socioeconomic Data and Applications Center (SEDAC). Licensed under CC BY 4.0. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). CC BY 4.0
  • VIIRS near-real-time products (flood, land surface temperature, snow cover, corrected reflectance), NASA LANCE; imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • NASA Fire Information for Resource Management System (FIRMS), VIIRS 375 m active fire product, NASA LANCE; vector tiles via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • VIIRS Black Marble night-time lights, NASA Goddard Space Flight Center; distributed by the NASA Level-1 and Atmosphere Archive and Distribution System (LAADS DAAC); imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • ASTER GDEM is a product of METI and NASA (ASTER Global Digital Elevation Model V003, NASA LP DAAC); imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • Made with Natural Earth. Free vector and raster map data @ naturalearthdata.com. Public domain
  • © OpenStreetMap contributors (ODbL), via NASA GIBS (coastlines, boundaries, roads and place names). Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). ODbL
  • Blue Marble, NASA Earth Observatory; imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
  • Context on the globe and flat map: coastlines, boundaries, roads and place names from NASA GIBS reference layers (OpenStreetMap data, ODbL, © OpenStreetMap contributors); Blue Marble imagery as an optional base; 3D terrain and the elevation read-out from the ASTER GDEM elevation colour index (5 m to 200 m classes, exaggerated for legibility). Boundaries are drawn as published and imply no position on any territory.
  • Globe: MapLibre GL JS 6.9.1, BSD-3-Clause, © MapLibre contributors.
  • Live: NASA EONET Events are indicative, not official warnings.
  • Live: GDACS (EC JRC / UN OCHA) Events are indicative, not official warnings.
  • Live: NOAA GOES-East ABI GeoColor (CIRA). We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS).
  • Optional layers (21 sources in the layer list: live, forecast, observed and context) print their provider credit on the map and here when switched on; forecasts are model output and derived indices are estimates.

Layers and dates

  • Population density, 2020: Population: CIESIN, Columbia University, Gridded Population of the World v4.11 (2018), NASA SEDAC, CC BY 4.0 · static
  • Flood water, 3-day composite: VIIRS Global Flood Product, NASA LANCE · 14 Oct 2026
  • Active fires and thermal anomalies, last day: VIIRS NOAA-20 375 m (FIRMS), NASA LANCE FIRMS · 13 Oct 2026
  • Night-time lights, daily: VIIRS Black Marble (VNP46A2), NASA LAADS DAAC · 12 Oct 2026
  • Land surface temperature, day, 8-day composite: VIIRS NOAA-20 Level 3, 8-day, NASA LANCE · 14 Sep 2026
  • True colour: VIIRS NOAA-20 corrected reflectance, NASA LANCE · 13 Oct 2026

03Console

Narrative monitor, in outline.

The working screen behind this subject: its structure, terms and states. Names are placeholders and values illustrative.

Narrative monitor

Crisis information · Crisis information cell · Week 30

Harmful rumour spreadingGRF · Information Integrity and Public Trust

Narratives

Tap water poisoned after flood77HighFalseCorrection out
Shelters charging fees57MediumFalseDrafting
Dam about to fail77HighCheckingHolding line
Aid only for registered voters40MediumFalsePrebunked

Spread

Response protocol

  1. Detectmonitor
  2. Verifyprovenance
  3. Assess harmthreshold
  4. Respondcorrect · prebunk
  5. Reporttransparency
Narrative monitor: the screen's structure, terms and states for Crisis information.Placeholder names and illustrative values; a design, not a record or a live system.
04The question

Crisis information: how the risk develops.

Warnings, risk communication and trust. The dossier below sets out how the risk develops, what is measured, where the data come from, how it is modelled and who decides.

Mechanism

Channels fail with infrastructure

Power cuts and damaged networks silence online channels when they are most needed. Radio, loudspeakers and community networks become the main routes.

Mechanism

Rumours outrun facts

Early in a crisis, facts are scarce and demand for information is high. Rumours fill the gap and can drive harmful behaviour before official information arrives.

Mechanism

Affected people are not consulted

Information designed without asking affected people misses their questions and languages. Feedback mechanisms let responders hear what people need to know.

Mechanism

Shutdowns and restrictions

Governments sometimes restrict internet access or reporting during crises. These measures cut off safety information and documentation of events.

05Key terms

Terms used on this page.

Each term as this page uses it. Where a standard-setting body defines the term, the wording follows that body.

TermDefinition
Rumour trackingSystematic collection of rumours and questions in a crisis so that responders can answer them.
Internet shutdownAn intentional disruption of internet or electronic communications, making them inaccessible for a population or location.
Two-way communicationGiving affected people information and collecting their feedback to shape the response.
06Indicators

What is measured, and how well.

Each indicator carries its unit, its cadence, the kind of source behind it and the evidence label a value would carry. No values are shown: a programme supplies them under its own authority.

IndicatorUnitCadenceSource typeLabel
Internet shutdowns during crisescount and duration in hoursannualShutdown monitoringREPORTED
Community feedback mechanisms in humanitarian responsesyes or no, by responseper responseResponse recordsREPORTED
Languages used in crisis messagingcountper eventMessage archivesOBSERVED
Journalists killed or detained in crisis zonescountannualPress freedom organizationsREPORTED
Rumours logged and addressed by responderscountper responseRumour tracking recordsREPORTED
Access to radio among affected populationsshare of householdsper assessmentNeeds assessmentsESTIMATED
07Canvas

From sources to decisions.

The topic as a computational graph: named sources feed the methods, an evidence review gates the outputs, and the decisions stay with the authorities that hold them.

Pipeline canvas · Crisis information as a run graphDesign, not a record
Crisis information: responding to harmful informationPublic narratives are monitored; items are detected and their provenance verified; harm is assessed against a threshold; the response (correct, prebunk, label, escalate) is chosen and reported transparently. Design of the process, not a record of a run.

Fig. 02Nodes carry their type, two metric rows and a state; connectors show what feeds what; dashed frames name the owners; the timeline is the cadence. Design of the pipeline, not a record of a run.

08Sources

Where the evidence comes from.

Named public datasets and institutional records, each with its licence class. Sources by agreement are used only under their terms and never republished.

SourceWhat it givesLicence class
Access Now KeepItOn dataDocumented internet shutdownsFree to read, terms to check
Committee to Protect Journalists databasesJournalists killed and imprisonedFree to read, terms to check
CDAC Network resourcesCommunication and community engagement in humanitarian responseFree to read, terms to check
Internews rumour tracking methodology and reportsRumour tracking in humanitarian settingsFree to read, terms to check
ReliefWebSituation reports including communication needsFree, OCHA terms; content terms per author
09Decisions

Who decides, and what the evidence serves.

Information Integrity and Public Trust prepares evidence. The decisions below are taken by the authorities named, under their own rules, and never by the platform.

Who decidesThe questionEvidence this page serves
Emergency management and humanitarian agenciesHow to assess and meet information needsFeedback and rumour tracking practice
Governments and telecom regulatorsWhether to restrict networks or reporting in a crisisEvidence on effects of shutdowns and human rights standards
Broadcasters and local mediaHow to keep information flowing in a crisisCrisis broadcasting practice
PlatformsHow to surface authoritative information in a crisisCrisis protocol practice and evaluations

Outputs this topic produces

  • Guide to rumour tracking and community feedback in crises
  • Comparative notes on crisis information channels when networks fail
  • Dialogue briefs on shutdowns and safety information
  • Questions for responders on information needs assessment
10Core questions

What experts ask.

Crisis communication researchers ask how information can protect people when stakes are highest.

  • How quickly and through which channels do people receive crisis information, and who is missed?
  • How should authorities communicate uncertainty that is changing rapidly?
  • Why do rumours spread in crises, and how can information gaps be filled quickly?
  • How do pre-existing trust and relationships affect crisis communication?
  • How are multiple voices, from agencies, media and communities, coordinated without contradiction?
11Mechanisms and drivers

Information vacuums and trusted voices.

In the early stages of a crisis, demand for information exceeds supply. When official information is slow, inconsistent or absent, people turn to informal sources and rumours fill the gap. Social science research shows that people seek confirmation from family, peers and local sources before acting on warnings, and that consistent messages from multiple trusted sources increase protective action.

Communicating uncertainty is a central challenge. Authorities may fear that admitting uncertainty will cause panic or undermine authority, but evidence suggests that honest acknowledgement, with clear explanation of what is known and what is being done, tends to maintain trust better than false certainty that later proves wrong.

12Methods and data

How the evidence is built, and where it stops.

  1. 01

    Post-crisis studies

    Surveys and interviews on how people received and used information, with social and behavioural science. Recall is imperfect.

  2. 02

    Social media monitoring

    Tracking rumours and information needs in real time using machine learning. Raises privacy and representativeness concerns.

  3. 03

    Message testing

    Testing message clarity and effect before crises. Conditions differ in real events.

  4. 04

    Comparative case analysis

    Comparing communication across crises. Context shapes outcomes.

13Methods

How it is studied, and what the methods cannot say.

  1. Social and behavioural scienceMeasuring trust and exposure · Testing interventions · Qualitative study of information needsApplied here
  2. Network science and contagionDetecting coordinated behaviour · Tracing narrative spread · Mapping media ecosystemsApplied here
  3. Artificial intelligence and machine learningClassifier error in moderation · Synthetic media detection limits · Recommender auditsApplied here
14Questions

Questions and answers.

What is rumour tracking?
The systematic collection of rumours and questions circulating in a community during a crisis, so responders can answer them with accurate information.
Why do internet shutdowns matter in crises?
They cut people off from safety information, family and services, and stop documentation of events. Human rights bodies have called them disproportionate in most cases.
What is communicating with communities?
A humanitarian practice of two-way communication with affected people, giving information and collecting feedback to shape the response.
Should authorities admit uncertainty in a crisis?
Evidence generally supports honest communication of uncertainty, with clear guidance on what people should do. False certainty that later changes tends to erode trust.
Why do rumours spread in emergencies?
Because people urgently need information and turn to whatever sources are available when official information is slow or unclear.
Is crisis information integrity a Nexus Universe theme?
Yes, it is the planned theme for this platform; see the platform in the Nexus Universe.
Information Integrity and Public Trust

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