Prospective, corrective and compensatory risk management
02نەخشەکان
Build a twin of any place
Search any place or open the world; the layers and generators follow disaster risk reduction on the planet map, the globe and in 3D.
مەترسیدەرەکان، کارەساتەکان و خۆڕاگریAny 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).
03The subject
The subject, methods and measures and debates and bodies
The field and its scope
For planners, حوکمڕانیی مەترسی officers, development practitioners and analysts who need to turn hazard, exposure and vulnerability information into strategies that prevent new risk and reduce the risk that exists.
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 that learners can find and apply their published work. The Academy teaches the use of that work and links to the publisher. No affiliation is implied.
04The method
From a loss curve to a benefit-cost ratio: how average annual loss, a discount rate and an investment decide whether risk reduction pays
A loss exceedance curve gives the loss at every return period; its integral is the average annual loss; a risk reduction measure lowers the curve; the avoided loss, discounted over the measure's life, against its cost gives the benefit-cost ratio a finance ministry asks for.
Sources: Shreve and Kelman, Does mitigation save? Reviewing cost-benefit analyses of disaster risk reduction (2014); Mechler, Reviewing estimates of the economic efficiency of disaster risk management (2016); Hallegatte, Vogt-Schilb, Bangalore and Rozenberg, Unbreakable: Building the Resilience of the Poor in the Face of Natural Disasters (2017); United Nations, Sendai Framework for Disaster Risk Reduction 2015–2030 (2015).
05At a glance
At a glance, with 5 related topics
Disaster risk reduction at a glance
risksacademy.comhazards-resiliencediscipline
Disaster risk reduction at a glance
Open, 1
In preparation, 2
Also taught here, 4
Subtopics, 8
Course codes from the curriculum; study levels L1 to L4.
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. A record is not a licence, a professional title or an employment status.
داتا و شوێنەکان لە کوێوە دێن؟
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 disaster risk reduction?
خانەیەکی لێهاتوویی لە سێ تا حەوت کەس پێکبهێنە، ڕێڕەوێکی هاوبەش بخوێنە، ئەرکێکی سەرپەرشتیکراو لە National Working Groups وەربگرە، یان کۆمەڵێک لە دامەزراوەکەتەوە بهێنە. Open the page for organisations.
زاراوە سەرەکییەکان
دەستەواژە
Disaster risk
The potential loss of life, injury or damaged assets in a period, as a function of hazard, exposure, vulnerability and capacity.
دەستەواژە
لاوازی
The conditions that increase the susceptibility of people, assets or سیستەمانەی to the impacts of hazards.
دەستەواژە
توانا
The strengths and resources available to manage and reduce disaster risk and strengthen resilience.
دەستەواژە
مەترسیی ماوە
The disaster risk that remains even when effective risk reduction measures are in place.
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