phranque - 12:22 pm on Jun 14, 2013 (gmt 0)
i'm not sure what you precisely mean by "event".
usually, finding an error involves knowing what time stamp to look for and finding that problem in the access and/or error logs.
many OS distributions include helpful tools, so you might want to explore that avenue.
i haven't tried it, but you might want to look at wtop and logrep.
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i typically use general-purpose command line text processing tools to explore the log files like (e)grep, cut, sort, uniq, wc, etc.
i also wrote a script i use to do certain types of analysis.