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Monterey Bay

Heart Attack – Residency

34th sighting in Monterey Bay
Fluke of Heart Attack
Heart Attack Confirmed in the catalog @93954
Mar 26 – May 22, 2024 · Monterey Bay

Monterey Bay · Mar – May 2024

139 m
Deepest dive
5:09
Longest dive
256
Dives
Sightings
22
Days between first and last sighting
57
Deepest dive on record
139 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Mar 26, 202499 m13.5°C80 m
Mar 28, 2024211 m13.4°C132 m
Mar 30, 202452 m—44 m
Mar 31, 2024135 m12.9°C59 m
Mar 31, 2024302 m12.8°C130 m
Apr 1, 202423 m12.9°C21 m
Apr 1, 2024119 m12.9°C104 m
Apr 2, 202464 m12.8°C49 m
Apr 3, 202473 m13.3°C45 m
Apr 8, 2024105 m12.5°C61 m
Apr 9, 2024567 m12.5°C37 m
Apr 11, 202453 m13.1°C36 m
Apr 12, 2024197 m13.6°C119 m
Apr 14, 202482 m12.6°C33 m
Apr 16, 202495 m12.1°C54 m
Apr 18, 20241,037 m12.6°C107 m
Apr 20, 202418 m14.0°C14 m
Apr 20, 2024321 m13.6°C38 m

Seafloor and sea temperature measured · ✳ dives modelled ·

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Deepest dive against the seafloor, per sighting

Seafloor · measured Deepest dive · modelled
Mar 26, 2024 — seafloor 99 m (measured), deepest dive 80 m (modelled)Mar 26Mar 28, 2024 — seafloor 211 m (measured), deepest dive 132 m (modelled)Mar 30, 2024 — seafloor 52 m (measured), deepest dive 44 m (modelled)Mar 31, 2024 — seafloor 135 m (measured), deepest dive 59 m (modelled)Mar 31, 2024 — seafloor 302 m (measured), deepest dive 130 m (modelled)Mar 31Apr 1, 2024 — seafloor 23 m (measured), deepest dive 21 m (modelled)Apr 1, 2024 — seafloor 119 m (measured), deepest dive 104 m (modelled)Apr 2, 2024 — seafloor 64 m (measured), deepest dive 49 m (modelled)Apr 3, 2024 — seafloor 73 m (measured), deepest dive 45 m (modelled)Apr 3Apr 8, 2024 — seafloor 105 m (measured), deepest dive 61 m (modelled)Apr 9, 2024 — seafloor 567 m (measured), deepest dive 37 m (modelled)Apr 11, 2024 — seafloor 53 m (measured), deepest dive 36 m (modelled)Apr 12, 2024 — seafloor 197 m (measured), deepest dive 119 m (modelled)Apr 12Apr 14, 2024 — seafloor 82 m (measured), deepest dive 33 m (modelled)Apr 16, 2024 — seafloor 95 m (measured), deepest dive 54 m (modelled)Apr 18, 2024 — seafloor 1,037 m (measured), deepest dive 107 m (modelled)Apr 20, 2024 — seafloor 18 m (measured), deepest dive 14 m (modelled)Apr 20Apr 20, 2024 — seafloor 321 m (measured), deepest dive 38 m (modelled)Apr 20, 2024 — seafloor 86 m (measured), deepest dive 60 m (modelled)Apr 20, 2024 — seafloor 567 m (measured), deepest dive 64 m (modelled)Apr 22, 2024 — seafloor 170 m (measured), deepest dive 72 m (modelled)Apr 22May 22, 2024 — seafloor 157 m (measured), deepest dive 139 m (modelled)

Depth runs down from the surface. The modelled dive never passes the measured seafloor at that sighting.

Dives

139 m
Deepest dive
5:09
Longest dive
256
Dives
26 m
Avg dive depth
22
Sightings
57
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
075150139 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (157 m) and the published dive-behaviour distribution. Modelled, not measured.

Deep Effort Score

Deep

Depth, duration and recovery resolved into a single number for this session.

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Place

Where this happened · May 22, 2024

measured
Seafloor depth
157 m
Sea-surface temperature
13.6°C
Distance from shore
11.0 km

Across the residency · 22 sightings

measured
Seafloor depth
18 m – 1,037 m
Sea-surface temperature
12.1°C – 14.1°C
Distance from shore
1.0 km – 18.0 km

Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Source records

This activity is assembled from 22 catalogued encounters on Happywhale.

Sighting records from Happywhale, published as occurrence data via GBIF. Individual records are licensed CC0 1.0, CC BY 4.0 or CC BY-NC 4.0, depending on the contributor.

The photographs and fluke identifications behind every sighting are the work of the contributing observers — the citizen scientists, naturalists and operators who logged them, each named in the underlying GBIF occurrence record. Every activity links out to its source encounters on Happywhale. Basemaps © OpenStreetMap contributors (ODbL).

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Breach is an independent project. It is not affiliated with, nor endorsed by, Happywhale or GBIF.