Talk:Hayward Fault Zone
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[edit] Mem.Stad. Columns Photo
The caption for the photo describes something that isn't evident in the picture. No diverging columns. Tmangray 19:06, 27 October 2006 (UTC)
- Caption improved - Leonard G. 04:41, 13 July 2007 (UTC)
[edit] Spelling
Is there a reason "plate tectonics" is spelled with a 'k' in the text of the link?
No, just my usual kind of screw-up. I blew a hard drive containing preferences and now can't figure out to reactivate the spelling checker in my browser. Leonard G. 18:49, 22 Aug 2004 (UTC)
[edit] 1868 Hayward earthquake
"Although its magnitude was less than the 1906 San Francisco Earthquake, the intensity of shaking experienced in the Hayward area may have been greater than in 1906 due to the proximity of the Hayward Fault." The meaning of this sentence was changed, with the latest edit. The original wording had implied that the 1868 event may have actually been greater than the 1906 event. The original sentence was added by Leonard G., August 22, 2004. There was no source cited, and I cannot find any still. The original claim that "some believe that this earthquake may have in fact been of greater intensity" than 1906 (likely 7.8, in an estimated range of 7.7 to 8.3) is perhaps dubious. Maybe this vague and confusing sentence should just be dropped entirely.Steven Russell 00:54, 22 November 2006 (UTC)
- Intensity and magnitude are two different concepts. The original wording implied something known to be incorrect, so I changed it to something which may be correct. I've also moved almost all that out of the table, and into the main text.
[edit] Proposal to rename
This article should be renamed by dropping the word "zone". The most common, and equally correct name for the fault is simply the Hayward Fault. All faults are "zoned", so the extra word is unnecessary. It is also out of conformity with other articles about other faults. For example, the article on the San Andreas is simply "San Andreas Fault". Tmangray 06:41, 31 October 2007 (UTC)
- I might add, the term "zone" should be distinguished from the term "faultline" which is difficult if they are conflated as they are in this and other fault articles. Technically, the Hayward Fault is itself part of the vast San Andreas Fault Zone which, according to current theory, actually extends across the western US and even out to sea some distance. That is, the boundary between the Pacific and North American Plates is actually not a discrete line, but, yes, a zone across which the stresses generated by the two plates are spread out over a vast area. The stress maximum axis lies along the San Andreas FaultLINE. The Hayward Fault as a line also manifests a more localized stress maximum with smaller strands along either side of it representing the Hayward Fault ZONE.
- It is however, difficult to find an adequate authoritative explanation of this online to cite as a reference. It would help if someone could find such. I would post the above explanation, but for lack of a citeable reference close at hand. I still think this article ought to be renamed, and a section added to explain the difference between the fault zone and the faultline. Tmangray 23:01, 7 November 2007 (UTC)
[edit] Recent Earthquake incorrectly attributed to this Fault
The 5.6 magnitude earthquake that occured on Oct 30 2007... did not occur on the Hayward Fault. It occured on the Calaveras fault.
