Ulawun 2019

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General Information

Mount Ulawun Eruption 2019 Mount Ulawun, a volcano on the island of New Britain, Papua New Guinea; erupted on June 26th causing thousands to evacuate.

Map showing the Humanitarian Map Style

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:

Pre-made data exports (shapefiles and geopackage files) are available for the regions specifically mapped as part of the response:

Regularly updated OpenStreetMap exports are available on the Humanitarian Data eXchange (HDX)

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 LearnOSM.org for information on mapping in the field.

Usage of OSM data for Humanitarian Missions

About This Disaster Activation

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 hotosm.org. We are a global community of mostly volunteers, we are also a US Nonprofit able to contract with organizations (email info at hotosm.org to contact our staff), we are also a 501-c-3 charitable organization.

History of this Activation

Reactivity of the OSM Community

  • June 27th - members of the Activation Working Group began discussing the situation
  • June 28-29th - Activation leads perform size-up and outreach to partners, although no immediate requests, decision to activate is made.
  • June 29 - Project Mount 6206 Ulawun Created; June 30 - Project 6211 Manam Created
  • July 03 - Both projects completed and validated

Shifting to Preparedness

  • June 30 - Activators in contact with local response agencies agree to continue mapping the most at-risk communities around Papau New Guinea's active volcanoes.
  • August 11 - Mapping on the five disaster risk reduction projects completed and activation declared closed.


  • HOT Coordinator(s): Theo Andrae (Activation Lead), Russell Deffner (Disaster Services Coordinator)

Support Team

  • Support team member(s): David Garcia, Frans Schutz, Greg Rose, Jarmo Kivekäs, Ralph Aytoun

Effort made

  • 48 hours from project launch, 50 Mappers have made over 50,000 map edits
  • At the conclusion of the Ulawun response, 51 Mappers made 65,280 map edits including the addition of 1350 highways and 2820 buildings.

(Source: ResultMaps)

For Mappers

  • HOT Coordinator(s) have declared this activation complete

How You Can Contribute

Learn to Map

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

Mapping Priority

  • Please choose from highest priority first
  • Experienced mappers are also asked to participate in validating completed tasks. Information on validating can be found here
Project Priority Location What to map Imagery Source Task Mapping Status Task Validation Status
Manum Basemap Complete Manum Island Buildings, Waterways Various Complete (100%) Complete (100%)
Ulawun Basemap Complete Ulawun AOI Buildings, Roads, Waterways Bing Complete (100%) Complete (100%)
Karkar Island Basemap (Preparedness Project) Complete Karkar Island Buildings, Roads Bing Complete (100%) Complete (100%)
Umboi Island Basemap (Preparedness Project) Complete Umboi Island Buildings and Roads MAXAR Premium Complete (100%) Complete (100%)
Mount Bagana Basemap (Preparedness Project) Urgent Mount Bagana AOI Buildings, Roads, Waterways MAXAR Premium Complete (100%) Complete (100%)
Rabaul Basemap (Preparedness Project) High Rabaul AOI Buildings, Roads MAXAR Premium Complete (100%) Complete (100%)
Mount Lamington Basemap (Preparedness Project) High Mount Lamington AOI Buildings, Roads, Waterways Bing Complete (100%) Complete (100%)

Available Imagery

OSM Default Imagery 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