Reported by DART today.
What the source measured
DART reported: DART buoy 46407 (DART Off OR/WA) detected 0.322m amplitude change. Water column height: 3267.12m.
How we know
One source: DART. Not yet confirmed by a second, independent source.
Our own score for this event is 22 out of 100, at 50 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Tsunami |
| Severity | medium |
| Calamity Score (ours) | 22 / 100 |
| Our confidence | 50% |
| Coordinates | 42.6600, -128.7700 |
| Nearest City | Coos Bay (378 km) |
| Impact Tier | minor |
| Timestamp | 2026-08-30T23:15:00.000Z |
| Source | https://www.ndbc.noaa.gov/station_page.php?station=46407 |
Score Breakdown
Technical Details
| StationId | 46407 |
| StationName | DART Off OR/WA |
| AmplitudeM | 0.32 |
| WaterColumnHeightM | 3267.12 |
| TsunamiMode | false |
| ReadingsAnalyzed | 7 |
Safety Information
If a tsunami warning is issued: move immediately to higher ground or inland. Do not wait to see the wave. Tsunamis can arrive as a series of waves over several hours — do not return to low-lying areas until official all-clear is given. Follow designated evacuation routes and instructions from tsunami warning centers.
Series begins 10 February 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.
Calamity.live data shows a tsunami event with CalamityScore 22/100, at DART Off OR/WA (United States), based on data from dart. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.