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

Head Banger – Residency

41st sighting in Monterey Bay
Fluke of Head Banger
Head Banger Confirmed in the catalog @7153
Aug 21 – Sep 3, 2025 · Monterey Bay

Monterey Bay · Aug – Sep 2025

83 m
Deepest dive
4:07
Longest dive
88
Dives
Sightings
9
Days between first and last sighting
13

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Aug 21, 202564 m14.2°C57 m
Aug 23, 202570 m13.7°C64 m
Aug 23, 202579 m13.7°C65 m
Aug 24, 2025106 m13.8°C83 m
Sep 1, 202580 m16.7°C47 m
Sep 1, 202577 m16.7°C42 m
Sep 3, 202578 m16.9°C51 m
Sep 3, 202591 m16.9°C67 m
Sep 3, 202580 m16.9°C57 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
Aug 21, 2025 — seafloor 64 m (measured), deepest dive 57 m (modelled)Aug 21Aug 23, 2025 — seafloor 70 m (measured), deepest dive 64 m (modelled)Aug 23Aug 23, 2025 — seafloor 79 m (measured), deepest dive 65 m (modelled)Aug 23Aug 24, 2025 — seafloor 106 m (measured), deepest dive 83 m (modelled)Aug 24Sep 1, 2025 — seafloor 80 m (measured), deepest dive 47 m (modelled)Sep 1Sep 1, 2025 — seafloor 77 m (measured), deepest dive 42 m (modelled)Sep 1Sep 3, 2025 — seafloor 78 m (measured), deepest dive 51 m (modelled)Sep 3Sep 3, 2025 — seafloor 91 m (measured), deepest dive 67 m (modelled)Sep 3Sep 3, 2025 — seafloor 80 m (measured), deepest dive 57 m (modelled)Sep 3

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

Dives

83 m
Deepest dive
4:07
Longest dive
88
Dives
25 m
Avg dive depth
9
Sightings
13
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010083 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (106 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 · Aug 24, 2025

measured
Seafloor depth
106 m
Sea-surface temperature
13.8°C
Distance from shore
10.0 km

Across the residency · 9 sightings

measured
Seafloor depth
64 m – 106 m
Sea-surface temperature
13.7°C – 16.9°C
Distance from shore
3.0 km – 10.0 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 9 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.