Marshall Islands Atoll Information

Ronglap Atoll

Atoll Information

Atoll (name) Location Number
Land area (km2) Lagoon area (km2) Ratio land to lagoon area (km2)
English Marshallese North East area rank area rank ratio rank
Rongelap RoÏlap 11°19' 166°50' 61 7.95 10 1,004.32 2 0.79 25

Map of Rongelap Atoll (Source: Office of Planning and Statistics 1989


Alternative names

The following alternative names have been used on European charts
logbooks and the accounts of visitors:
Korsakov Group
Pescadores (Wallis 1767)
Remsky Korsacow (Kotzebue 1825)
Rimsky Korsacoff (Kotzebue 1825)

US. Navy Codenames used during WWII and during the nuclear testing period

Overtrump -- Rongelap
Reprobate -- Rongelap Atoll
Stagnate -- Rongelap
Virulent -- Rongelap Atoll

Public Health


Environmental Data

View a 1881 map of Rongelap Atoll

Map of Rongelap Atoll (1897)

Historic Data

Historic Demographic Information for the Marshall Islands--Rongelap Atoll

Chronological listing of ships visiting the Marshall Islands until 1885 --Rongelap Atoll

Combat Chronology of the US Army Air Forces in operations against and from the Marshall Islands--Events regarding Rongelap Atoll



Mejatto Island, Kwajalein Atoll--A Photo Essay
by Dirk HR Spennemann
Images of the Mejatto, to where much of the Rongelapese community was relocated.



Bibliographic citation for this document

Spennemann, Dirk HR (1998-05). Atoll Information.
URL: http:/

Dirk H.R. Spennemann, Institute of Land, Water and Society, Charles Sturt University, P.O.Box 789, Albury NSW 2640, Australia.

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