Hippo Regius – Submerged Harbour of Augustine at Annaba
Hippo Regius · Hippone · Annaba Hippo · Augustine Hippo
Phoenician to Arab (12th c. BCE – 7th c. CE; Augustinian 354–430 peak)·Phoenician / Numidian / Roman·🇩🇿 Annaba Province, Annaba (ancient Hippo) Seybouse estuary, Algeria
About
About Hippo Regius – Submerged Harbour of Augustine at Annaba
Numidian royal city (12th c. BCE Phoenician) – later Roman capital Numidia, seat of Augustine (354–430 bishop). River-harbour on Seybouse estuary with moles, quays, warehouses, cisterns spanning 60 ha. Coastal strip harbour moles 300 m now –1 to –3 m due to +1 m Roman sea rise and Seybouse delta shift. Excavated Marec 1920s–60s: forum, theatre, Augustine basilica, Ghar el-Afgoun? Harbour moles fragmentary but mapped by maritime survey 2009. Vandal 431 sack but harbour silted thereafter. UNESCO tentative Hippo.
Why it mattersBishopric stratigraphy of Augustine with harbour sea-level marker for Numidian coast +1 m Roman level; pre-Arab delta dynamics.
Open questions
Mysteries & theories
Mysteries
- 01Augustine basilica location – hill vs harbour?
- 02Mole Punic base or wholly Roman?
Theories
- 01Estuary migrated east 2 km progressively burying western harbour like Utica but later
Theories are interpretations, not findings. The seal above tells you how much scholarly weight the place carries.
History
How it came to be
- Built
- Phoenicians, Massylian kings, Romans
- Period
- Phoenician to Arab (12th c. BCE – 7th c. CE; Augustinian 354–430 peak)
- Culture
- Phoenician / Numidian / Roman
- Builders
- Phoenician
- Purpose
- Royal harbour, Numidian grain port, episcopal basilica
- Abandoned
- Vandal 431 + delta shift silting; Arab 698
- Rediscovered
- Marec 1920s–60s Hippo; Morel harbour 1968
- Excavation
- Excavation ongoing
12th c. BCE
Phoenician anchorage Seybouse
46 BCE
Roman Hippo, Numidia capital
354–430
Augustine bishopric episcopal complex
2009
Maritime survey maps –1 to –3 m mole
On the ground
Structures & features
36.8840° N · 7.7580° E · -1 m · 3 mapped features
Hippo forum and theatre
forumRoman centre 1 km inland
36.8850° N · 7.7600° ESubmerged harbour moles (Seybouse)
harbour300 m moles at –1 to –3 m estuary
36.8840° N · 7.7580° EAugustine basilica
basilica5th c. basilica on hill
36.8860° N · 7.7570° E