Search any place or open the world; the layers and generators follow technological, industrial and Natech hazards on the planet map, the globe and in 3D.
Hazards, Disasters and ResilienceAny placeTwin builder
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 that can draw it, once its data and code 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.
Reference earthquakes The two main shocks of 6 February 2023: origin, magnitude, depth, time and review status from the USGS detail record, the hypocentre drawn below the ground. U.S. Geological Survey Earthquake Hazards Program. read 2026-10-17.Estimate: Reported solutions as reviewed by the USGS; magnitudes and depths carry the USGS stated uncertainties, which the event page links rather than restates.
Population count 2020, WorldPop 1 km People per cell in 2020, summed from the national 1 km raster of Turkiye on a grid of 160 by 120 cells; the Syrian part of the box, south of the border, is empty because the national file stops there. WorldPop (www.worldpop.org), University of Southampton, 2020 UN-adjusted 1 km, CC BY 4.0; summed per cell. read 2026-10-17.Estimate: A modelled 2020 estimate adjusted to UN totals; never a count of people affected; cells outside the national file are empty.
Earthquakes M4.5 and above, past week (live) Reviewed and automatic seismic solutions of the past week inside the box, with magnitude and depth, read from the world feed and filtered to the box in your browser. U.S. Geological Survey; reported detections, automatic solutions preliminary; never a warning. Live: this page requests earthquake.usgs.gov when the layer is opened; the data date is printed with it.Estimate: Reported detections; automatic solutions are preliminary; never a warning.
USGS ShakeMap intensity contours The ShakeMap MMI contours of each main shock draped on the terrain, read from the cont_mmi.json file the event's detail record names; the exposure instrument reads the PAGER exposure table the same record names. U.S. Geological Survey ShakeMap and U.S. Geological Survey PAGER (preliminary, automatically generated; see the USGS disclaimers), with the product version and time. Live: this page requests earthquake.usgs.gov when the layer is opened; the data date is printed with it.Estimate: Preliminary and automatically generated; PAGER levels and exposures are USGS estimates with stated uncertainty, never a warning or a loss figure of the Academy.
Why this place: The sequence of 6 February 2023 put two events of M7 and above on the East Anatolian fault within nine hours, with reviewed USGS solutions, ShakeMap, PAGER and ground-failure products and a red PAGER alert. One box of about 140 by 130 kilometres holds both epicentres, Kahramanmaras and Gaziantep and the fault valley between the Taurus foothills and the Amanos range, so intensity against distance, exposure and warning lead time are taught on one place. Copernicus DEM GLO-30 covers the box in six tiles and WorldPop gives a 2020 count per cell for the Turkiye part.
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 that can draw it, once its data and code 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).
03Live map
Climate signals in Southern Africa
Surface heat, rain, snow, sea ice, marine heat and water storage, each a dated satellite or model product, over Southern Africa.
The interactive map needs JavaScript; the layer list and sources are below.
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.
Climate signals, framed on Southern Africa.Satellite and model products as NASA publishes them, each with its own date. They are indicators, not assessments of any place.
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
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
GPM IMERG precipitation, NASA Precipitation Processing System; distributed by the NASA Goddard Earth Sciences Data and Information Services Center (GES DISC); imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
GHRSST Level 4 MUR analyses, NASA Jet Propulsion Laboratory; distributed by the NASA Physical Oceanography DAAC (PO.DAAC); imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
GRACE and GRACE-FO JPL mascon solution, NASA Jet Propulsion Laboratory; distributed by the NASA Physical Oceanography DAAC (PO.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). Cite as: NASA/METI/AIST/Japan Spacesystems and U.S./Japan ASTER Science Team (2019). ASTER Global Digital Elevation Model V003. doi:10.5067/ASTER/ASTGTM.003. NASA open data
Made with Natural Earth. Free vector and raster map data @ naturalearthdata.com. Public domain
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
Live events: NASA Earth Observatory Natural Event Tracker (EONET); events are indicative and keep their original source links.
Live: NASA EONET Events are indicative, not authority warnings.
NASA GIBS: 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).
Air quality forecast, 5 days, PM2.5 (CAMS via Open-Meteo): Contains modified Copernicus Atmosphere Monitoring Service information 2026.
Past year, daily temperature (ERA5 via Open-Meteo): Contains modified Copernicus Climate Change Service information 2026.
Past year, daily temperature and sunshine (NASA POWER): These data were obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program..
Weather data by Open-Meteo.com (https://open-meteo.com/), licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/).
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
Land surface temperature, day, 8-day composite: VIIRS NOAA-20 Level 3, 8-day, NASA LANCE · 14 Sep 2026
Precipitation rate, daily mean: GPM IMERG, NASA GES DISC · 12 Oct 2026
Snow cover: VIIRS NOAA-20 NDSI, NASA LANCE · 13 Oct 2026
Sea ice concentration: GHRSST MUR, NASA JPL PO.DAAC · 12 Oct 2026
Sea surface temperature anomaly: GHRSST MUR25, NASA JPL PO.DAAC · 12 Oct 2026
Water storage anomaly, monthly: GRACE-FO JPL mascons, NASA JPL PO.DAAC · July 2022
04The subject
The subject, methods and measures and debates and bodies
The field and its scope
For process safety engineers, regulators, land-use planners and emergency planners who must assess a hazardous installation, a dam or a transport corridor and the natural hazards that can trigger its failure.
Quantities and units
Methods and their limits
Each method is listed with what it assumes and where it fails.
What the field debates
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.
05The method
From a release frequency to a planning zone: how individual risk falls with distance and where the criterion line sits
A loss-of-containment frequency and a consequence model give the chance of death at each distance from an installation; the individual risk contour where that chance meets a national criterion fixes the planning zone, and the population inside the hazard range gives the expected fatalities per event.
Sources: Kaplan and Garrick, On the quantitative definition of risk (1981); European Parliament and Council, Directive 2012/18/EU on the control of major-accident hazards involving dangerous substances (Seveso III) (2012); Necci, Cozzani, Spadoni and Khan, Assessment of domino effect: state of the art and research needs (2015); Krausmann and Cruz, Impact of the 11 March 2011 Great East Japan earthquake and tsunami on the chemical industry (2013).
06At a glance
At a glance, with 5 related topics
Technological, industrial and Natech hazards at a glance
risksacademy.comhazards-resiliencediscipline
Technological, industrial and Natech hazards at a glance
Open, 0
In preparation, 2
Also taught here, 3
Subtopics, 8
Course codes from the curriculum; study levels L1 to L4.
Field platforms of the ecosystem where the subject is studied and applied.
The two Foundry systems where it is practised
FoundryNXS-NST systemIndustrial and Natech accidents are incidents to corroborateIncidents room
NXS-GRX systemIndustrial accidents cascade through infrastructureCascades room
Foundry system pages describe what each system and its rooms are designed to do; the courses teach the methods these systems apply.
Across the ecosystem
10Take part
Take part in Hazards, Disasters and Resilience
Start from who you are.
11References
Core references and where to begin
Start with Kaplan, then Perrow, then Reason.
12Questions
Questions, answers and key terms
Is study here free?
Yes. Every course and learning material of Risk Academy, led by the Nexus Consortium, is free to study, self-paced or with a cohort. Ordinary participation has no fee; paid work, internships and fellowships are separate arrangements.
What does completing a course give me?
A completion record: the course, its version, the date and what was assessed, private by default and shared by you. It stacks into discipline, department and programme achievements. A record states what was studied and assessed and does not certify competence; it is not a licence, a professional title or an employment status.
Where do the data and the places come from?
Every faculty teaches on a twin of a real place built from open data; each layer carries its provider, licence and date, and every result on the Academy states its source. Maps and figures are indicators for teaching, never an assessment of a place.
How do I take part beyond the courses in technological, industrial and Natech hazards?
Form a competence cell of three to seven people, study a shared pathway, take a supervised assignment in the National Working Groups, or bring a cohort from your institution. For organisations.
Key terms
Term
Natech event
A technological accident triggered by a natural hazard, such as a chemical release during a flood.
Term
Major accident hazard
The potential for a release, fire or explosion at an installation that seriously harms people or the environment.
Term
Layer of protection analysis
A semi-quantitative method that tests whether independent safeguards reduce a scenario's risk enough.
Term
Bow-tie diagram
A diagram that links the causes of an event to its consequences through preventive and mitigating barriers.
ReportsContribute
Contribute evidence from this page.
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
Related
Around Technological, industrial and Natech hazards
Technological, industrial and Natech hazards
Prepare with a related course
Open courses in connected disciplines teach the methods this discipline will build on.
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