Earthquakes 236 km ESE of Attu Station, Alaska
Reported by USGS today.
It is the 6th strongest of the 137 detections recorded within 20 km of this point since 8 March 2026. The last comparable one was on 3 September 2026.
What the source measured
USGS reported: 236 km ESE of Attu Station, Alaska
USGS recorded magnitude 5.0 at a depth of 10 km.
Nearby, since 8 March 2026
- July 19, 2026 · score 1 · 1.4 km
- July 15, 2026 · score 0 · 2.1 km
- July 16, 2026 · score 0 · 2.8 km
How we know
Confirmed by 3 independent sources, including USGS.
Our own score for this event is 9 out of 100, at 66 % 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 | Low |
| Calamity Score (ours) | 9 / 100 |
| Our confidence | 66% |
| Coordinates | 51.9555, 176.3482 |
| Nearest City | Petropavlovsk-Kamchatsky (1202 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-04T02:28:38.697Z |
| Source | https://earthquake.usgs.gov/earthquakes/eventpage/us7000te7l |
Score Breakdown
Technical Details
| Mag | 5 |
| Depth | 10 |
| Tsunami | true |
| Mmi | 3.37 |
| Sig | 385 |
| Emsc Mag | 5 |
| Emsc Depth | -10 |
| Emsc MagType | mb |
| Emsc Region | RAT ISLANDS, ALEUTIAN ISLANDS |
| Emsc Auth | GSRAS |
| Emsc SourceId | 2055531 |
| Gfz Mag | 4.83 |
| Gfz Depth | 10 |
| Gfz MagType | mb |
| Gfz Region | Rat Islands, Aleutian Islands |
| MergedSources | [{"id":"emsc_20260904_0000036","source":"emsc","severity":"medium","severityValue":40,"timestamp":1788488920200,"latitude":52.15,"longitude":176.4},{"id":"gfz_gfz2026rhqr","source":"gfz","severity":"low","severityValue":28.98,"timestamp":1788488922030,"latitude":52.212,"longitude":176.551}] |
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.
Want to know when something happens in this area?
Calamity.live data shows a earthquake event with CalamityScore 9/100, 236 km ESE of Attu Station, Alaska, based on data from usgs. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.