Earthquakes 89 km SSW of Nikolski, Alaska
Right now
The most recent data we hold from USGS arrived 3 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
Reported by USGS 10 days ago.
It is the 8th strongest of the 154 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: 89 km SSW of Nikolski, Alaska
USGS recorded magnitude 5.3 at a depth of 26 km.
This is the highest magnitude we have recorded at this point, over 132 readings since 1 September 2026 — the previous range was 5.2 to 5.3.
Nearby, since 18 March 2026
- July 10, 2026 · score 0 · 0.7 km
- May 23, 2026 · score 16 · 2.7 km
- September 3, 2026 · score 2 · 3.2 km
How we know
Confirmed by 2 independent sources, including USGS.
Our own score for this event is 18 out of 100, at 67 % 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
| Type | Earthquakes |
| Severity | Medium |
| Calamity Score (ours) | 18 / 100 |
| Our confidence | 67% |
| Coordinates | 52.2132, -169.4456 |
| Nearest City | Anchorage (1547 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-01T06:44:36.948Z |
| Source | https://earthquake.usgs.gov/earthquakes/eventpage/us7000tdab |
Score Breakdown
Technical Details
| Mag | 5.3 |
| Depth | 26 |
| Tsunami | false |
| Felt | 3 |
| Mmi | 3.1 |
| Sig | 434 |
| Emsc Mag | 5.3 |
| Emsc Depth | 22.5 |
| Emsc MagType | mw |
| Emsc Region | FOX ISLANDS, ALEUTIAN ISLANDS |
| Emsc Auth | EMSC |
| Emsc SourceId | 2053958 |
| MergedSources | [{"id":"emsc_20260901_0000078","source":"emsc","severity":"medium","severityValue":42.4,"timestamp":1788245076300,"latitude":52.2318,"longitude":-169.4043}] |
Cascade Risks
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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