Heimdallr

HEIMDALLR

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Global Settings

General

Language

Theme

Map Defaults

Default Zoom

Center Longitude

Center Latitude

Map layer order

Drag to reorder. Bottom of list renders closest to the map.

Observations Always on top

Weather Alerts

Tectonic Plates

Military

ISS Tracker

Volcanic

Wildfire

Cyclone

Tsunami

Seismic

Phrase Rotation

Rotation interval

Background Monitoring

Show notification when in background

Dashboard column order

Drag to reorder. Top 4 shown in notification.

Seismic

Volcanic

Tsunami

Wildfire

Cyclone

Keyboard

Single-character shortcuts (A, S, L, ?)

Accessibility

Reduce motion (disable animations) Performance mode (disable blur effects)

Actions

Show welcome on startup Show cookie notice

Welcome

⚖ BSL 1.1 License

Real-time natural hazard monitoring

Choose which modules to activate

Interact with the map Click any marker for event details. Right-click or long-press for coordinates, nearest event, and reverse geocoding.

Map Legend Tap the info button on the map controls for a colour-coded legend of all active layers and markers.

Module Hub Open with the grid button or Ctrl+K to enable, disable, or pin modules to the top bar.

Controls & Settings Each module panel has Events, Controls, and Settings tabs. Tap any event to fly to its map location. Use ↻ to reload a source, and configure auto-refresh per source.

Activity Feed Real-time stream of events from all modules. Filter by domain in the modules.

Global Settings Language, default map centre and zoom, layer order, and foreground service.

Keyboard Shortcuts

Ctrl+KModule Hub

Ctrl+RRefresh all

AActivity Feed

SSettings

?All shortcuts

EscClose panel

Severe weather alerts from ~190 national services via the WMO, with animated overlays for precipitation, temperature, wind, and pressure.

How to use:

Map

Alert polygons coloured by severity — click any for details, area, and dates
E-SOH observation circles in Europe, colour-coded by selected parameter
METAREA boundary lines toggled from the Maritime section in the Events tab

Sources & Filters

WMO SWIC — global CAP alerts from ~190 national services
EUMETNET — MeteoAlarm alerts for ~30 European countries (takes priority over SWIC in Europe)
NOAA NWS — US National Weather Service alerts (takes priority over SWIC in the US)
Filter by severity level, time window, marine/expired toggle, and observation station types

Events list

3-level drill-down: WMO members → country alerts → alert detail
Severity pills filter by level; region and member dropdowns narrow the list
Maritime section for METAREA boundaries and marine warnings

Weather Overlays

Animated layers: precipitation, temperature, wind, and pressure — one active at a time
Time slider scrubs forecast hours; tap the map for point values (mm/h, °C, m/s, mBar)
Per-layer opacity adjustable in the Settings tab

Tracks earthquakes from three networks — USGS, EMSC, and INGV.

How to use:

Map

Circle size and colour by magnitude — small green (minor) to large red (M6+)
Nearby markers cluster with a count badge — zoom in or click to expand
Click any marker for a popup with magnitude, place, time, depth, and source

Sources & Filters

USGS (worldwide), EMSC (Europe), INGV (Italy) — toggle each on/off
EMSC WebSocket for live streaming — earthquakes appear instantly
Filter by time range (1 h – 3 days or custom) and magnitude (0–10)

Events list

Nearby earthquakes grouped by proximity and time — tap header to expand
Magnitude pills filter by level (M6+, M5+, M4+, <M4)

Monitors volcanoes from three sources — USGS alerts, Smithsonian GVP catalog, and GDACS eruption reports.

How to use:

Map

Triangle markers sized and coloured by alert level
Click any marker for alert level, activity, elevation, region, and source

Sources & Filters

USGS (US alerts), Smithsonian GVP (~1,400 volcanoes), GDACS (live eruptions) — duplicates merged automatically
Filter by alert level, region, and GDACS time range (6 h – 30 days)

Events list

Live Activity (GDACS) at top, Alert Statuses (USGS/GVP) below
Each entry shows alert badge, volcano name, location, elevation, and source

Tracks active tsunami warnings, watches, and advisories from NWS and GDACS.

How to use:

Map

Pulsating circle markers coloured by alert level — size and speed scale with severity
Click any marker for alert type, headline, affected area, onset, and source

Sources & Filters

NWS (US alerts) and GDACS (global earthquake-triggered tsunami risk)
Filter by alert level, region, and minimum triggering magnitude

Events list

Each entry shows alert badge, headline, affected area, and onset/expiry times
GDACS alerts include triggering earthquake magnitude and estimated wave height
Alert-level pills filter the list by severity

Tracks active fires from NASA FIRMS satellite hotspots and NIFC US fire perimeters.

How to use:

Map

Square markers sized and coloured by severity — clustered at low zoom
NIFC fire perimeters as semi-transparent filled polygons beneath hotspot markers
Click any marker for severity, FRP, confidence, detection time, and source

Sources & Filters

NASA FIRMS (global satellite hotspots) and NIFC (US fire perimeters) — overlaps deduplicated
Filter by severity, region, and detection days (1–10)

Events list

FIRMS hotspots show location, FRP, and confidence; NIFC entries show fire name, acres, and containment
Severity pills filter by level (Extreme, High, Moderate, Low)

Tracks tropical cyclones and hurricanes worldwide using NHC/JTWC data, with observed and forecast tracks.

How to use:

Map

Animated hurricane markers — size and colour scale with Saffir–Simpson category
Solid observed track, dashed forecast track, and semi-transparent uncertainty cone
Click any marker for storm name, category, wind speed, pressure, and advisory

Sources & Filters

NHC/JTWC via Esri ArcGIS — global tropical cyclone data with track geometry and forecast cones
Filter by min category (TD – Cat 5), ocean basin, and min wind speed

Events list

Each entry shows category badge, storm name, basin, wind speed, and pressure
Severity pills filter the list (Major, Hurricane, Storm)

Tracks military installations worldwide from OSM Overpass, NTAD (US DoD), and Covert Cabal.

How to use:

Map

Diamond markers colour-coded by facility type — clustered at low zoom
Click any marker for type, name, operator, branch, source, and external links
Overlapping installations across sources deduplicated within 5 km

Sources & Filters

OSM Overpass (global), NTAD (US DoD), Covert Cabal (static)
Show Fortifications toggle loads bunkers and trenches (~132K features) on demand
Resolve locations for city and country names via reverse geocoding

Events list

3-level drill-down: group cards (by type or country) → installation list → detail view
Installation list with search bar; detail view shows stats grid with external links

Tracks the International Space Station in real time — position, altitude, velocity, and predicted orbital path.

How to use:

Map

Marker & Popup

Satellite icon marks the current ISS position
Click for latitude, longitude, altitude, velocity, and visibility — updates live

Trajectory

A cyan line traces the predicted orbital path ~100 minutes ahead

Data from WhereTheISS.at API

Global tectonic plate boundaries for geological context — bundled offline.

How to use:

Map

Semi-transparent boundary lines in the module accent colour
Layer with seismic data to see how earthquake activity aligns with plate edges

Data & Attribution

Boundary data from GPlates by the EarthByte Group, University of Sydney
300 boundary features — subduction zones, mid-ocean ridges, transforms, continental rifts, and more
Bundled at build time — works fully offline

Hub

ESC to close

Map Legend

Keyboard Shortcuts

Open module hub

CtrlK

Close panel / overlay

Esc

Refresh all modules

CtrlR

Toggle fullscreen

F11

Keyboard shortcuts

Activity feed

Settings

Map Legend