tag:blogger.com,1999:blog-1466892996584433045.post174274787082310175..comments2023-08-01T05:40:06.560-07:00Comments on active margin: How big was that one?jrepkahttp://www.blogger.com/profile/10624685961793402257noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-1466892996584433045.post-57448741216150103812010-02-03T14:16:58.112-08:002010-02-03T14:16:58.112-08:00I suppose that not only the character of the focal...I suppose that not only the character of the focal mechanism is important, but also the rupture. For example, Loma Prieta was a bilateral rupture, propagating out in two directions simultaneously. Had it been a unilateral rupture, I think it's correct to say that the shaking would have been approximately twice the duration. Many structures that can survive 30-second shakes would certainly Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-1466892996584433045.post-33537281992685697212010-01-24T23:02:53.517-08:002010-01-24T23:02:53.517-08:00Thanks for pointing this out. I've adjusted th...Thanks for pointing this out. I've adjusted the numbers in the table. They seem to make more sense now...jrepkahttps://www.blogger.com/profile/10624685961793402257noreply@blogger.comtag:blogger.com,1999:blog-1466892996584433045.post-75384327003850959082010-01-24T19:06:09.063-08:002010-01-24T19:06:09.063-08:00I think you are miscalculating the energy differen...I think you are miscalculating the energy differences. 6.7 to 7.0 is nearly 4 times energy and 7.0 to 9.1 is 1412 times more energy. You need to multiply the magnitude difference by 1.5 before antilogging.Hypocentrehttps://www.blogger.com/profile/11861680448492241902noreply@blogger.com