Entropy – Residency
18th sighting in Salish Sea
Entropy @28751
Sep 4 – 5, 2026 · Salish Sea
Early Autumn, Home Water
Twice in these channels this stretch — I know every ripple here.
147 m
Deepest dive
5:16
Longest dive
33
Dives
- Sightings
- 2
- Days between first and last sighting
- 1
- Deepest dive on record
- 147 m · this residency
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Sep 4, 2026 | 195 m | — | 147 m |
| Sep 5, 2026 | 109 m | — | 43 m |
Seafloor and sea temperature measured · ✳ dives modelled
Deepest dive against the seafloor, per sighting
Seafloor · measured Deepest dive · modelledDepth runs down from the surface. The modelled dive never passes the measured seafloor at that sighting.
Dives
147 m
Deepest dive
5:16
Longest dive
33
Dives
26 m
Avg dive depth
2
Sightings
1
Days first → last
Dive metrics are modelled within real depth limits — not measured
Get actual dive data with Risa Deep →Dive profile
modelledDepth shaped by the seafloor limit here (195 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Sep 4, 2026
measured- Seafloor depth
- 195 m
- Sea-surface temperature
- —
- Distance from shore
- 9.0 km
Across the residency · 2 sightings
measured- Seafloor depth
- 109 m – 195 m
- Sea-surface temperature
- —
- Distance from shore
- 5.0 km – 9.0 km
Sources: GEBCO seafloor grid · PacIOOS coastline distance
Source records
This activity is assembled from 2 catalogued encounters on Happywhale.