Heart Attack – Residency
12th sighting in Monterey Bay
Heart Attack @93954
Feb 25 – Apr 27, 2023 · Monterey Bay
Monterey Bay · Feb – Apr 2023
75 m
Deepest dive
3:29
Longest dive
138
Dives
- Sightings
- 12
- Days between first and last sighting
- 61
Dive stats modelled within real depth limits — not measured
Get actual dive data with Risa Deep →| Sighting | Seafloor | Sea temp | Deepest dive (modelled) |
|---|---|---|---|
| Feb 25, 2023 | 274 m | 10.1°C | 66 m |
| Mar 20, 2023 | 52 m | 12.7°C | 37 m |
| Mar 25, 2023 | 116 m | 11.9°C | 26 m |
| Mar 26, 2023 | 96 m | 11.9°C | 75 m |
| Apr 2, 2023 | 68 m | 12.3°C | 54 m |
| Apr 8, 2023 | 97 m | 11.6°C | 32 m |
| Apr 14, 2023 | 89 m | 11.0°C | 73 m |
| Apr 16, 2023 | 119 m | 10.9°C | 40 m |
| Apr 22, 2023 | 113 m | 10.5°C | 65 m |
| Apr 22, 2023 | 34 m | 11.2°C | 30 m |
| Apr 22, 2023 | 148 m | 10.8°C | 39 m |
| Apr 27, 2023 | 167 m | 11.5°C | 34 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
75 m
Deepest dive
3:29
Longest dive
138
Dives
20 m
Avg dive depth
12
Sightings
61
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 (96 m) and the published dive-behaviour distribution. Modelled, not measured.
Deep Effort Score
DeepPlace
Where this happened · Mar 26, 2023
measured- Seafloor depth
- 96 m
- Sea-surface temperature
- 11.9°C
- Distance from shore
- 4.0 km
Across the residency · 12 sightings
measured- Seafloor depth
- 34 m – 274 m
- Sea-surface temperature
- 10.1°C – 12.7°C
- Distance from shore
- 2.0 km – 13.0 km
Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance
Source records
This activity is assembled from 12 catalogued encounters on Happywhale.