SEAK-2177 – Residency
10th sighting in Chatham Strait
SEAK-2177 @271
Sep 6 – 24, 2026 · Chatham Strait
September, Chatham Strait Again
Two passes through my green corridor, both sweet, this month.
161 m
Deepest dive
5:39
Longest dive
19
Dives
- Sightings
- 2
- Days between first and last sighting
- 18
- Deepest dive on record
- 161 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 6, 2026 | 194 m | 13.0°C | 161 m |
| Sep 24, 2026 | 231 m | — | 123 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
161 m
Deepest dive
5:39
Longest dive
19
Dives
41 m
Avg dive depth
2
Sightings
18
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 (194 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Sep 6, 2026
measured- Seafloor depth
- 194 m
- Sea-surface temperature
- 13.0°C
- Distance from shore
- 5.0 km
Across the residency · 2 sightings
measured- Seafloor depth
- 194 m – 231 m
- Sea-surface temperature
- 13.0°C
- Distance from shore
- 2.0 km – 5.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 2 catalogued encounters on Happywhale.