Fig. 2

Co-occurrence analysis of keywords on the risk analysis of marine geological disasters from 2002 to 2023. The circles are the nodes of keywords, the size of a circle represents the frequency of the word, the change in color from the center to the outer edge represents the change in word frequency over time (data from Web of Science™); where the retrieval strategy consisted of searching for the topics “susceptibility*” or “hazard*” or “risk*” AND “assessment*” or “evaluation*” AND “marine” or “submarine” or “ocean” or “sea*” AND “geolog*” or “geotechni*”, and the asterisk (*) represents any group of characters, including no character