Denizli Earthquakes

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General Information

Denizli Earthquakes on August 8th, 2019, there were a series of earthquakes, the strongest being a magnitude 5.7 east of Denizli, Turkey.

Map of the impacted area

For Aid Organizations

Map and Data Services

Map showing the editing activity of OSM contributors during Typhoon Haiyan

About OpenStreetMap

OpenStreetMap offers an online map (and spatial database) which is updated by the minute. Various tools and services allow data extracts for GIS specialists, Routable Garmin GPS data, Smartphone GPS navigation, and other device-compatible downloads. With an internet connection, regular syncing is possible with open access to the community contributed data as it comes in, with OpenStreetMap's bulk data downloads ideal for use offline. In addition, maps can also be printed to paper.

Browse the Activation Area to get a feel for the data that is currently available. Different map styles including an Humanitarian style can be selected on the right side, and some data may not render (appear) on the map, but could be exported from the underlying database (See export section below).

Paper Maps

Poster size Maps and normal sized paper atlases of custom areas can be printed:

  • See OSM_on_Paper for an overview and list of platforms and services for printing maps.
  • We suggest FieldPapers Paper Maps with grid for field survey or general navigation purposes.

Exporting OpenStreetMap data

See Downloading data for instructions on getting large scale map data, or see the focused exports below:

Offline Road Navigation with small devices

With the availibility of Small communication devices, Navigation Offline data proves to be very useful to the humanitarians deployed in foreign countries. We support the humanitarian NGO's using navigation data and invite them to give us feedback on the utilization of these devices in the context of field deployment.

  • See Software/Mobile for more information on using OSM in portable devices.
  • See also Mobile Mapping on for information on mapping in the field.

Usage of OSM data for Humanitarian Missions

About This Disaster Mapping Project

About HOT

Hot logo with text.svg
  • To learn more about the Humanitarian OpenStreetMap Team (HOT), explore more of our wiki-pages (root: HOT) or our website We are a global community of mostly volunteers, we are also a US Nonprofit able to contract with organizations (email info at to contact our staff), we are also a 501-c-3 charitable organization.

History of this Activation

Reactivity of the OSM Community

  • August 8th - the local team in Turkey, Yer Çizenler, informed the global HOT team of the earthquake.

HOT Activates

  • August 8th - by late in the day, the Turkey community had created a project and boosted an existing partner project to continue creating a basemap of the impacted area. HOT global disaster services staff providing assistance.


  • Local Lead(s): Can Ünen and team at Yer Çizenler
  • HOT Coordinator(s): Russell Deffner, Disaster Services Coordinator, Support

Effort made

  • 24 hours from project launch, 16 mappers have made over 10,000 map changes including the addition of nearly 100 missing roadways and over 1000 buildings.
  • August 11 - 54 mappers have made over 33,000 map changes: 300+ roadways, 3900+ buildings
  • August 13 - 134 mappers have made 150,000 map changes: 750+ roadways, 19,800+ buildings
  • August 15 . -190 mappers have made over 268,000 map changes: 1,394 roadways, 37,000+ buildings
  • August 17 - 213 mappers have made over 361,500 map changes: 2,000+ roadways, 51,000+ buildings
  • August 19 - 233 mappers have made over 456,500 map changes: 3000+ roadways, 63,300+ buildings
  • August 21 - 334 mappers have made over 540,500 map changes: 3,00+ roadways, 75,500+ buildings
  • Stats unavailable at 05:45 UTC 25/08
  • August 28 - 396 mappers have made over 675,000 changes to the map: 4,800+ roadways, 93,300+ buildings
  • September 7 - 399 mappers have made over 684,800 changes to the map: 4800+ roadways, 93,450+ buildings

(Source: resultmaps)

For Mappers

  • Local Community requesting validation assistance to complete the mapping.

How You Can Contribute

Learn to Map

  • Most of our volunteer needs are for remote OSM contributors, visit to get started.

Mapping Priority

  • Please choose from highest priority first
  • Experienced mappers are also asked to participate in validating completed tasks. Sign up for validation here: Validator Request Form
Project Priority Location What to map Imagery Source Task Mapping Status Task Validation Status
6371 Urgent Denizli Buildings MAXAR Premium In Progress (99%) In Progress (63%)
4667 Urgent Denizli Roads MAXAR Premium Complete (100%) Complete (100%)

Available Imagery

OSM Default Imagery Sources


Maxar provides a global imagery data source that is the Imagery requested for these projects, you are always welcome to compare sources.


Bing provides a global imagery data source that is the 'default' Imagery available for OSM (default option in most editors).


Mapbox provides a global imagery source and should be compared to Bing (typically use Bing for alignment if available and not instructed otherwise).

Alternative Imagery Sources

How to add/use Alternative Imagery

In many cases better imagery is available than the default; when possible we set up a remote link directly via the Tasking Manager, so there is nothing to do, the iD editor and (as long as enabled) JOSM will automatically add the imagery.

Additionally, with JOSM, it's relatively easy to add special imagery if the license is appropriate for tracing into OSM. For more details see JOSM Imagery Help