Defenestration – Residency
45th sighting in Chatham Strait
Defenestration @16924
Jun 25 – Aug 26, 2025 · Chatham Strait
Chatham Strait · Jun – Aug 2025
64 m
Deepest dive
2:34
Longest dive
102
Dives
- Sightings
- 10
- Days between first and last sighting
- 62
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Jun 25, 2025 | 44 m | 11.0°C | 36 m |
| Jul 16, 2025 | 4 m | 12.1°C | 4 m |
| Jul 25, 2025 | 76 m | 12.8°C | 29 m |
| Aug 1, 2025 | 22 m | 14.1°C | 19 m |
| Aug 4, 2025 | 21 m | 13.4°C | 19 m |
| Aug 15, 2025 | 35 m | 13.9°C | 31 m |
| Aug 21, 2025 | 45 m | 13.5°C | 34 m |
| Aug 23, 2025 | 72 m | 14.3°C | 64 m |
| Aug 24, 2025 | 86 m | 15.1°C | 48 m |
| Aug 26, 2025 | 36 m | 14.7°C | 28 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
64 m
Deepest dive
2:34
Longest dive
102
Dives
16 m
Avg dive depth
10
Sightings
62
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 (72 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Aug 23, 2025
measured- Seafloor depth
- 72 m
- Sea-surface temperature
- 14.3°C
- Distance from shore
- 2.0 km
Across the residency · 10 sightings
measured- Seafloor depth
- 4 m – 86 m
- Sea-surface temperature
- 11.0°C – 15.1°C
- Distance from shore
- 1.0 km – 3.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 10 catalogued encounters on Happywhale.