Talk:1857 Fort Tejon earthquake

This is the talk page for discussing improvements to the 1857 Fort Tejon earthquake article.
This is not a forum for general discussion of the article's subject.

Put new text under old text. Click here to start a new topic.
New to Wikipedia? Welcome! Learn to edit; get help.

Article policies

Find sources: Google (books · news · scholar · free images · WP refs) · FENS · JSTOR · TWL

A fact from 1857 Fort Tejon earthquake appeared on Wikipedia's Main Page in the Did you know column on 10 May 2012 (check views). The text of the entry was as follows:

Did you know... that four of the twentieth-century Parkfield earthquakes had similar intensities to the dawn foreshock of the great 1857 Fort Tejon earthquake?

A record of the entry may be seen at Wikipedia:Recent additions/2012/May. The nomination discussion and review may be seen at Template:Did you know nominations/1857 Fort Tejon earthquake.

Wikipedia

A fact from this article was featured on Wikipedia's Main Page in the On this day section on January 9, 2013, January 9, 2015, January 9, 2017, January 9, 2019, January 9, 2020, January 9, 2022, and January 9, 2023.

This article is rated C-class on Wikipedia's content assessment scale.
It is of interest to the following WikiProjects:

Earthquakes High‑importance

	This article is within the scope of WikiProject Earthquakes, a collaborative effort to improve the coverage of earthquakes, seismology, plate tectonics, and related subjects on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.EarthquakesWikipedia:WikiProject EarthquakesTemplate:WikiProject EarthquakesWikiProject Earthquakes articles
High	This article has been rated as High-importance on the project's importance scale.

California: Southern California Mid‑importance

	California portal This article is within the scope of WikiProject California, a collaborative effort to improve the coverage of the U.S. state of California on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.CaliforniaWikipedia:WikiProject CaliforniaTemplate:WikiProject CaliforniaCalifornia articles
Mid	This article has been rated as Mid-importance on the project's importance scale.
	This article is supported by Southern California task force (assessed as Mid-importance).

Geography Low‑importance

This article is within the scope of WikiProject Geography, a collaborative effort to improve the coverage of geography on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.GeographyWikipedia:WikiProject GeographyTemplate:WikiProject Geographygeography articles

Low This article has been rated as Low-importance on the project's importance scale.

WikiProject Geography To-do list:

Here are some tasks awaiting attention:

Article requests : See Requested articles/Social sciences/Geography, cities, regions and named places and Missing articles about Locations
Assess : Tag related article talk pages with {{WikiProject Geography}}. To help assess the quality and importance of geography articles, please see: Unassessed geography articles and Unknown-importance geography articles.
Cleanup : See Geography articles needing attention
Deletion sorting : Listed at Geographic related deletion discussions
Geographical coordinates : See Articles missing geocoordinate data by country
Infobox : See Geography articles needing infoboxes
Map : See Wikipedia requested maps
Notability : See Geography articles with topics of unclear notability
Photo : See Wikipedia requested photographs of places
Stubs : See Geography stubs

In the news

Little-known quake is remembered By ALICIA CHANG, AP Science Writer. ^Blank ^Verse 01:25, 9 January 2007 (UTC)[reply]

Dead link

During several automated bot runs the following external link was found to be unavailable. Please check if the link is in fact down and fix or remove it in that case!

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)[reply]

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)[reply]

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)[reply]

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)[reply]

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)[reply]

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)[reply]

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)[reply]

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)[reply]

External links modified

Hello fellow Wikipedians,

I have just modified one external link on 1857 Fort Tejon earthquake. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

Added archive https://web.archive.org/web/20131110184306/https://www.gps.caltech.edu/~sieh/pubs_docs/papers/P78d.pdf to http://www.gps.caltech.edu/~sieh/pubs_docs/papers/P78d.pdf

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 5 June 2024).

If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 03:48, 22 May 2017 (UTC)[reply]