Calamity
MediumEarthquakesCalamity Score: 11

Earthquakes 78 km SSW of Nikolski, Alaska

USGS

Right now

The most recent data we hold from USGS arrived 4 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.

5 other detections within 20 km in the last 24 hours, the nearest 4 km from here.

Reported by USGS 7 days ago.

It is the 17th strongest of the 92 detections recorded within 20 km of this point since 18 March 2026. Another comparable one was recorded here earlier the same day.

What the source measured

USGS reported: 78 km SSW of Nikolski, Alaska

USGS recorded magnitude 5.2 at a depth of 35 km.

Nearby, since 18 March 2026

How we know

Confirmed by 3 independent sources, including USGS.

Our own score for this event is 11 out of 100, at 72 % confidence.

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

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

Event Data

TypeEarthquakes
SeverityMedium
Calamity Score (ours)11 / 100
Our confidence72%
Coordinates52.3538, -169.4988
Nearest CityAnchorage (1538 km)
Impact Tierminor
Timestamp2026-09-02T12:32:01.324Z
Sourcehttps://earthquake.usgs.gov/earthquakes/eventpage/us7000tdmm

Score Breakdown

24
intensity
0
population
0
cascading
12
historical

Technical Details

Mag5.2
Depth35
Tsunamifalse
Felt1
Mmi2.95
Sig416
Emsc Mag5.2
Emsc Depth9
Emsc MagTypemb
Emsc RegionFOX ISLANDS, ALEUTIAN ISLANDS
Emsc AuthEMSC
Emsc SourceId2054630
Gfz Mag5.4
Gfz Depth10
Gfz MagTypemb
Gfz RegionFox Islands, Aleutian Islands
MergedSources[{"id":"emsc_20260902_0000225","source":"emsc","severity":"medium","severityValue":41.6,"timestamp":1788352317680,"latitude":52.2194,"longitude":-169.3707},{"id":"gfz_gfz2026reto","source":"gfz","severity":"medium","severityValue":43.2,"timestamp":1788352317760,"latitude":52.266,"longitude":-169.343}]

Safety Information

If you feel shaking: Drop, Cover, and Hold On. Move away from windows, heavy objects, and exterior walls. After shaking stops, check for injuries and structural damage. Be prepared for aftershocks, which can occur minutes to months after the mainshock. Follow instructions from local emergency management authorities.

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.

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