Calamity
CriticalWildfiresCalamity Score: 39

Wildfires near Oeiras

OeirasBrazilNASA FIRMS (VIIRS)

Right now

The most recent data we hold from NASA FIRMS (VIIRS) arrived 18 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.

2 other detections within 20 km in the last 24 hours, the nearest 7 km from here.

Recorded by satellite today.

A thermal anomaly is a snapshot of one satellite pass, not a record of a fire’s life: we cannot say whether it kept burning after that pass.

It is the 21st strongest of the 66 detections recorded within 20 km of this point since 13 July 2026. The last comparable one was on 10 September 2026. 45 more were recorded here in the fortnight before it.

What the source measured

NASA FIRMS (VIIRS) reported 82 fire pixels with a combined fire radiative power of 415 MW, at high confidence, 10 km from Oeiras.

The 82 pixels cover about 11.5 km² — that is the footprint of the detection grid at 375 m resolution, not an estimate of how much land burned.

FIRMS does not report burned area, and neither do we.

An estimated 30,445 people live within 50 km of this point.

Wind from SE at 14 km/h at 20:00 UTC, according to MET Norway.

This is the highest radiative power we have recorded at this point, over 136 readings since 11 September 2026 — the previous range was 411 MW to 415 MW.

Nearby, since 13 July 2026

How we know

One source: NASA FIRMS (VIIRS). Not yet confirmed by a second, independent source.

Our own score for this event is 39 out of 100, at 74 % confidence.

The score is ours, computed from intensity, exposed population and local history — not the source’s.

Wind: MET Norway Locationforecast, CC BY 4.0.

Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.

Event Data

TypeWildfires
SeverityCritical
Calamity Score (ours)39 / 100
Our confidence74%
Coordinates-7.1209, -42.1271
Nearest CityOeiras (10 km)
Population Exposed30.4K within 50 km
Impact Tiersignificant
Timestamp2026-09-11T04:51:00.000Z
Sourcehttps://firms.modaps.eosdis.nasa.gov/map/#d:24hrs;@-42.127,-7.121,9z

Score Breakdown

60
intensity
40
population
0
cascading
30
historical

Technical Details

Brightness367
Frp415.03
PixelCount82
Confidencehigh

Safety Information

If a wildfire is approaching: follow evacuation orders immediately. Do not wait to see the fire. Close all windows and doors, remove combustible materials from around your home, and have an emergency go-bag ready. Air quality can deteriorate rapidly even at distance from the fire front — monitor local air quality advisories.

Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.

This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.

Want to know when something happens near Oeiras?

In the news nearby

A list of links found by GDELT for this place and this hazard in the last seven days. External, not ours: we have not read them and do not vouch for them.

No news is listed: GDELT was not available when this page was rendered.

GDELT Project · gdeltproject.org

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