Talk:Focal mechanism

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.

Geology C‑class Low‑importance

	Geology portal Talk:Focal mechanism is part of WikiProject Geology, an attempt at creating a standardized, informative, comprehensive and easy-to-use geology resource. If you would like to participate, you can choose to edit this article, or visit the project page for more information.GeologyWikipedia:WikiProject GeologyTemplate:WikiProject GeologyGeology articles
C	This article has been given a rating which conflicts with the project-independent quality rating in the banner shell. Please resolve this conflict if possible.
Low	This article has been rated as Low-importance on the project's importance scale.

Assessment comment[edit]

The comment(s) below were originally left at Talk:Focal mechanism/Comments, and are posted here for posterity. Following several discussions in past years, these subpages are now deprecated. The comments may be irrelevant or outdated; if so, please feel free to remove this section.

Comment(s) Press [show] to view →

== First motion convention ==

The first figure in this article is confusing. The usual convention is to label the quadrants P and T, depending on the first motion, whether inward or outward. The figure uses C and T, perhaps to indicate the local stress associated with the first motion of the outgoing wave (compression and tension). The usual convention, and the one used for other figures in this article, is to label the white quadrants P, and the black, T. Mark Brandon Yale.

== Focal mechanism or moment tensor? == The article creates the impression that there is no difference between a focal mechanism and a moment tensor solution^[1] Aniconist01 (talk) 16:51, 8 January 2013 (UTC).[reply]

== References ==

^ Havskof, Jens (2010). Routine Data Processing in Earthquake Seismology. Dordrecht, Heidelberg, London, New York: Springer. p. 193. ISBN 978-90-481-8696-9. {{cite book}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)

Last edited at 18:52, 8 January 2013 (UTC). Substituted at 15:18, 29 April 2016 (UTC)

External links modified (January 2018)[edit]

Hello fellow Wikipedians,

I have just modified one external link on Focal mechanism. 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/20080527185224/http://www.ipgp.jussieu.fr/~singh/download/Sibuet_etal_EPSL_revised_07.pdf to http://www.ipgp.jussieu.fr/~singh/download/Sibuet_etal_EPSL_revised_07.pdf

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

Y An editor has reviewed this edit and fixed any errors that were found.

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) 13:25, 29 January 2018 (UTC)[reply]

[1] Havskof, Jens (2010). Routine Data Processing in Earthquake Seismology. Dordrecht, Heidelberg, London, New York: Springer. p. 193. ISBN 978-90-481-8696-9. {{cite book}}: Unknown parameter |coauthors= ignored (|author= suggested) (help)

[1]