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Monterey Bay

Ziggurat – Residency

85th sighting in Monterey Bay
Fluke of Ziggurat
Ziggurat Confirmed in the catalog @63
May 14 – Oct 9, 2025 · Monterey Bay

Five months in the bay

The same waters kept calling me back through summer into fall.

280 m
Deepest dive
8:50
Longest dive
403
Dives
Sightings
32
Days between first and last sighting
148

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
May 14, 202567 m12.9°C43 m
May 31, 202528 m13.9°C26 m
Jun 1, 202570 m14.2°C59 m
Jun 4, 202570 m14.3°C36 m
Jun 5, 202551 m14.4°C43 m
Jun 6, 202553 m14.9°C34 m
Jun 9, 202539 m14.9°C35 m
Jun 10, 202580 m14.4°C45 m
Jun 14, 202571 m14.6°C36 m
Jun 14, 202557 m14.6°C43 m
Jun 16, 202575 m13.9°C52 m
Jun 16, 202561 m13.9°C48 m
Jun 24, 202594 m12.7°C61 m
Jun 28, 202575 m13.0°C44 m
Jul 7, 202564 m13.8°C58 m
Jul 13, 2025186 m13.0°C43 m
Jul 14, 202551 m13.0°C44 m
Jul 23, 2025567 m15.9°C73 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
May 14, 2025 — seafloor 67 m (measured), deepest dive 43 m (modelled)May 14May 31, 2025 — seafloor 28 m (measured), deepest dive 26 m (modelled)Jun 1, 2025 — seafloor 70 m (measured), deepest dive 59 m (modelled)Jun 4, 2025 — seafloor 70 m (measured), deepest dive 36 m (modelled)Jun 5, 2025 — seafloor 51 m (measured), deepest dive 43 m (modelled)Jun 6, 2025 — seafloor 53 m (measured), deepest dive 34 m (modelled)Jun 9, 2025 — seafloor 39 m (measured), deepest dive 35 m (modelled)Jun 9Jun 10, 2025 — seafloor 80 m (measured), deepest dive 45 m (modelled)Jun 14, 2025 — seafloor 71 m (measured), deepest dive 36 m (modelled)Jun 14, 2025 — seafloor 57 m (measured), deepest dive 43 m (modelled)Jun 16, 2025 — seafloor 75 m (measured), deepest dive 52 m (modelled)Jun 16, 2025 — seafloor 61 m (measured), deepest dive 48 m (modelled)Jun 24, 2025 — seafloor 94 m (measured), deepest dive 61 m (modelled)Jun 24Jun 28, 2025 — seafloor 75 m (measured), deepest dive 44 m (modelled)Jul 7, 2025 — seafloor 64 m (measured), deepest dive 58 m (modelled)Jul 13, 2025 — seafloor 186 m (measured), deepest dive 43 m (modelled)Jul 14, 2025 — seafloor 51 m (measured), deepest dive 44 m (modelled)Jul 23, 2025 — seafloor 567 m (measured), deepest dive 73 m (modelled)Jul 28, 2025 — seafloor 158 m (measured), deepest dive 65 m (modelled)Jul 28Jul 28, 2025 — seafloor 1,089 m (measured), deepest dive 62 m (modelled)Aug 11, 2025 — seafloor 70 m (measured), deepest dive 19 m (modelled)Aug 29, 2025 — seafloor 102 m (measured), deepest dive 55 m (modelled)Aug 30, 2025 — seafloor 159 m (measured), deepest dive 67 m (modelled)Aug 30, 2025 — seafloor 75 m (measured), deepest dive 38 m (modelled)Sep 7, 2025 — seafloor 114 m (measured), deepest dive 50 m (modelled)Sep 7Sep 16, 2025 — seafloor 121 m (measured), deepest dive 56 m (modelled)Sep 20, 2025 — seafloor 129 m (measured), deepest dive 25 m (modelled)Sep 20, 2025 — seafloor 244 m (measured), deepest dive 164 m (modelled)Sep 27, 2025 — seafloor 1,935 m (measured), deepest dive 280 m (modelled)Oct 2, 2025 — seafloor 79 m (measured), deepest dive 67 m (modelled)Oct 8, 2025 — seafloor 96 m (measured), deepest dive 69 m (modelled)Oct 8Oct 9, 2025 — seafloor 226 m (measured), deepest dive 33 m (modelled)

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

Dives

280 m
Deepest dive
8:50
Longest dive
403
Dives
22 m
Avg dive depth
32
Sightings
148
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0150300280 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (1,935 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 · Sep 27, 2025

measured
Seafloor depth
1,935 m
Sea-surface temperature
17.2°C
Distance from shore
14.0 km

Across the residency · 32 sightings

measured
Seafloor depth
28 m – 1,935 m
Sea-surface temperature
12.7°C – 17.6°C
Distance from shore
2.0 km – 16.0 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 32 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.