Talk:1857 Fort Tejon earthquake

In the news
Little-known quake is remembered By ALICIA CHANG, AP Science Writer. BlankVerse 01:25, 9 January 2007 (UTC)

Dead link
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 * http://quake.wr.usgs.gov/research/parkfield/history/1857.html
 * In 1857 Fort Tejon earthquake on 2011-05-25 02:06:50, 404 Not Found
 * In 1857 Fort Tejon earthquake on 2011-06-01 23:02:12, 404 Not Found

--JeffGBot (talk) 23:02, 1 June 2011 (UTC)
 * Tried to fix it. Put in a new link. Not sure if this is the correct fix. Sincerely, GeorgeLouis (talk) 02:17, 2 June 2011 (UTC)

Minimap vs. actual location
The minimap would suggest it's in san luis obispo, but other sources say it was east of there — Preceding unsigned comment added by 207.62.170.213 (talk) 14:29, 15 October 2013 (UTC)

a "mole track"
surface faulting along a "mole track" How is the reader to visualize a "mole track" caused by faulting?--Wetman (talk) 04:38, 9 January 2015 (UTC)
 * I have other concerns about this article. It is lacking focus and organization; it was written when I had less experience writing earthquake articles. Dawnseeker2000   05:53, 9 January 2015 (UTC)


 * I've looked up several papers that refer to "mole tracks", structures that typically form in surface ruptures during earthquakes along strike-slip faults through recent sediments. What I lack so far is a good definition. I'll keep looking and then see what I can do to tweak the article. Mikenorton (talk) 17:24, 9 January 2015 (UTC)


 * Here at least is a nice image File:Fault trace geq00014.jpg of a mole track in the surface rupture sense and here in contrast is a track left by a mole, so it's not difficult to see where the term came from. It appears to have first been used in the USGS report on The Parkfield-Cholame California, Earthquakes of June-August 1966 "Pressure ridges and raised wedges of soil are evidence of local compressional effects within the fracture zone. For about a mile south of locality F23, these features are so abundant that the fracture zone, when viewed from a few hundred feet away, resembles a low raised welt or mole track several inches high". Rick Sibson in 2003 said " In alluvium, strike-slip rupture zones typically comprise a “mole-track” array of en echelon primary Riedel shears with linking compressional rolls and minor thrusts." Now all I have to do is to come up with some appropriate text. Mikenorton (talk) 18:34, 9 January 2015 (UTC)


 * I've added an explanation using the quote from Rick Sibson - however that comes with its own technical terms I'm afraid. Mikenorton (talk) 20:35, 10 January 2015 (UTC)

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