Document: NUREG-0800
Document ID: 71ea6f85-7cea-4d3c-b009-8f22b3ab1639
Document Type: srp
Title: Maximum Earthauake Potential
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML0423/ML042390209.pdf
Revision Date: 2023-06
Chapter: 2
Section ID: 2.5.2.4
CFR Part: 
CFR Title: 

Content:
t K~~) 2 .In mccting thc rcquircemnt: v. . _......... ........-................................. M _ .w.. ._...... --..... M.......... ...._... >... in me t n th req J U u ire... ents 3 efRfrnce 1, thi subscction i: accepted when the '.'bratory ground mnotion 4 duc to thc maximum credible earthquakc associated with cach gcologic structure 5 or thc maximum historic carthquakc a sociated with cach tcctonic province has 6 been assessd and when the earthquake that would produce the maximum vibratory 7 ground motion at thc site has becn determined. Thc maximum crediblc 8 carthquakc is the largest earthquake that can reasonably bc expected to occur 9 an a gcologie structure in the current tectonic rcgime. _.ologic or 10 scismological cvidenee may warrant a maximum carthquakc larger than thc 11 maximum historic carthquakc. Earthquakc: associated with each gcologic 12 structu - or tectonic proincc must bc identiflcd. Where an earthquakc 1 13 associated with a geologic structure, the maximum credible earthquake that 14 could occur on that strcture should be evaluated, taking into account 15 significant factors, for example, the type of the faulting, fault length, 16 fault slip rate, ruptur: length, rupture area, moment, and earthquake history 17 (e.g., Refs. 19 through 22). 18 in order to determine the maximum credible earthquake that could occur on L ~'19 thocs faults that are shown or assumed to be capable, the staff aceept: 20 conseryative Yalues based on historie experience in the region and _pecific 21 considerations of the earthquake history and geologic history of movement on 22 the faul4ts. Where the earthquakes are asseciated with a tectonic province, 23 the largest historic earthquake within the proviney should be identified. 24 Isoseismal maps should also be precsented for the most significant earthquakes. 25 The ground motion at the site should be evaluated assuming appropriate seismic 26 energy transmission effects and assuming that the maximum earthquake 27