Reported by USGS 66 days ago.
It is the 5th strongest of the 8 detections recorded within 20 km of this point since 29 June 2026. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
USGS reported: 210 km W of Langlois, Oregon
USGS recorded magnitude 3.9 at a depth of 10 km.
The seismic region given by the source is 210 km W of Langlois, Oregon.
Nearby, since 29 June 2026
- June 29, 2026 · score 0 · 0.0 km
- July 21, 2026 · score 5 · 10.9 km
- June 29, 2026 · score 20 · 15.8 km
How we know
One source: USGS. Not yet confirmed by a second, independent source.
Our own score for this event is 0 out of 100, at 55 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Earthquakes |
| Severity | Low |
| Calamity Score (ours) | 0 / 100 |
| Our confidence | 55% |
| Coordinates | 43.2518, -127.0023 |
| Timestamp | 2026-06-29T12:47:10.101Z |
| Source | https://earthquake.usgs.gov/earthquakes/eventpage/us6000t8z7 |
Score Breakdown
Technical Details
| Mag | 3.9 |
| Depth | 10 |
| Sig | 234 |
| Tsunami | false |
| Region | 210 km W of Langlois, Oregon |
| Usgs Mag | 3.9 |
| Usgs Depth | 10 |
| Usgs Tsunami | false |
| Usgs Felt | 1 |
| Usgs Sig | 234 |
| MergedSources | [{"id":"usgs_us6000t8z7","source":"usgs","severity":"low","severityValue":23.4,"timestamp":1782737230101,"latitude":43.2518,"longitude":-127.0023}] |
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 0/100, 210 km W of Langlois, Oregon (United States), based on data from usgs_canada. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.