Real-time monitoring of earthquakes, volcanoes, tsunamis, wildfires, cyclones, and severe weather — unified in a single command surface.
Free, no account, open source
You care about specific places — your hometown, a coast you're watching, a region you work in. Drop a pin, draw a shape, or paste GeoJSON, and that place gets its own alert rules. Everything else fades out.
Mar 26, 2026, 09:14 UTC
Sources: USGS, EMSC, INGV
Mar 26, 2026, 11:47 UTC
Depth: 12.3 km · Source: USGS, INGV
Mar 25, 2026, 22:03 UTC
Depth: 33.0 km · Source: USGS
An earthquake hits and three agencies report it separately. We pull from all of them, figure out it's the same event, and show it to you once — with the best data from each.
Three agencies watch volcanoes, and we merge all of them. But the real trick? We scan satellite infrared for thermal anomalies and match them to known summits — so you can see a volcano warming up before anyone puts out an alert.
47 hotspots (6 passes)
Total FRP: 312.4 MW
1.3 km from summit
Mar 26, 2026, 14:32 UTC
12 hotspots (3 passes)
Total FRP: 84.7 MW
0.8 km from summit
Mar 26, 2026, 12:15 UTC
Category 4
Basin: North Atlantic
Wind: 250 km/h (135 kt)
Pressure: 937 hPa
Motion: NW 19 km/h (10 kt)
Updated: Mar 26, 2026, 15:00 UTC
Source: NHC · Advisory #14
Where has it been, where is it going, and how big is the danger zone? We pull 8 layers from NHC and JTWC and lay the whole storm out on the map — track, cone, wind rings, everything.
Tsunami warnings don't wait, and neither do we. NWS and GDACS alerts show up as pulsating markers you can't miss, and if a big earthquake triggers a tsunami flag, that comes through the seismic feed too. When the alert expires, it cleans itself up.
Max wave height: 1.2 m
Pacific Coast: OR, WA, BC
Issued: Mar 26, 2026, 04:12 UTC
Source: NWS NTWC
47 hotspots · Max FRP: 284.6 MW
Perimeter: 12,340 acres
Butte County, California
Mar 26, 2026, 08:45 UTC
8 hotspots · Avg FRP: 42.1 MW
Near Redding, Shasta County
Source: VIIRS NOAA-21
NASA's satellites spot hotspots from space, we spot them and spit them on your map. Tens of thousands of hotspots, color-coded by how hard they're burning, plus official fire perimeters so you can see the actual boundaries.
Every region has its best weather authority. Europe? EUMETNET. The US? NOAA. Everywhere else? WMO. We pull from all three and figure out who knows that area best — no duplicates, no gaps.
142 installations
Sources: Overpass, NTAD
Kern County, California
Type: Air Force Base
Sources: Overpass, NTAD
OpenStreetMap, US Department of War records, and Covert Cabal's curated research — three sources that don't talk to each other. We pull from all of them, merge anything within 5 km, and give you one clean map.
Rust compiled to WebAssembly, driving WebGL2 instanced draw calls through MapLibre's custom layer interface. R-tree spatial indexing and progressive tessellation, all within frame budget.
Free, no account, open source.
Launch Heimdallr