What just happened — anomalies, outages and disaster events.
Alerts when a district’s hour falls outside its own band, outages matched to the disaster record, and one district replayed quarter hour by quarter hour. For operations teams, security analysts and newsrooms.
Alerts open when a district’s hour falls outside its own 99.9% band. Events match outages to the disaster record, with the index trace around each. Live replays one district’s quarter hours against what that hour usually looks like.
When the grid collapsed, the addresses answering in Lisbon halved within a quarter hour, then kept sliding through the afternoon to about a quarter of normal by early evening. Recovery took until around midnight, some thirteen hours in all, with the rows to download.
Signal · power loss and internet loss on one clock
Action · watch any district at 15-minute resolution
In Dhaka the number of addresses answering our probes fell from about 500 to 4 within two hours of the morning cut, stayed there for most of two hours, and was back to normal by mid-afternoon: four hours end to end, with the rows to download.
Signal · a shutdown’s timing to the quarter hour, from outside the country
Action · follow any district at 15-minute resolution
In March 2022 the plant went offline while the district around it stayed connected. The measurement record separated the facility from its surroundings in near-real time, without anyone on the ground.
Signal · asset-level situational awareness
Action · monitor the assets you are responsible for
During the June 2025 war, the share of measured addresses responding fell from about 11% to 0.15% within two days, and 175 districts recorded episodes of their own. The Economist used this measurement in its coverage at the time.
Signal · the shutdown’s timing, depth and geography, as measured
Action · follow national events as they open
The national series stayed below its baseline from 8 to 27 January 2026. 163 of the 254 measured districts recorded episodes of their own inside that window. The brief gives the depth, the duration and a province table.
Signal · a disruption bounded within hours, not weeks
Action · watch live events as they open
Malvar in Batangas, the Philippines: a monthly connectivity index scored against its own normal of 100. The example counts the months that fell below the trigger line, turns them into a loss distribution and prices a premium, the whole chain from measurement to policy.
Signal · an auditable third-party trigger
Action · define a trigger on any measured district
