Extreme Level Earthquake

Earthquake with a severity which the structure should sustain without major damage.

NOTE The ELE event is comparable to the extreme environmental event in the design of fixed structures which is described in API 2A-WSD, 22nd Edition and ISO 19903, When exposed to an ELE, a structure is supposed to retain its full capacity for all subsequent conditions.

Source:API RP 2EQ, Seismic Design Procedures and Criteria for Offshore Structures, First Edition, November 2014. Global Standards

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