Talk:Japan Meteorological Agency seismic intensity scale

message: my source for the ground accelleration  doesnt separate the 5 and 6 upper and lower levels, so I have estimated with a geometric mean Zeimusu
:Why does japan have their own scale? How come they developed it from the beginning? Moberg (talk) 21:08, 27 May 2008 (UTC)

message: It is possible someone can update that chart to include the Equivalent Seismic scale numbers?  I'd do it but I can not find the information.
Mkrupnic (talk) 15:59, 23 July 2008 (UTC)
replies: text: It seems to me that the JMA scale is one for measuring the damage, not necessarily the actual power of an earthquake, unlike the seismic scales. I believe that a good analogue would be the Fujita scale used to rank tornados in comparison to the actual ind-speed inside the tornado itself. There is a distinct difference between a JMA 7 that has a richter scale of 8 and a JMA 7 that has a richter scale of 9. Anyone? Jtodsen (talk) 16:26, 11 March 2011 (UTC)

text: If you go to the JMA Website, and look at daily records of earthquakes, you will see that while it is likely that a stronger earthquake, will have more intense results over a wider area, there is no direct correlation between the two types of scale. One deals with the actual intensity of the earthquake, the other deals with its consequences in areas where it has been felt. To bring the problem home further, there are (as here) situations where the intensity of shaking is stronger at some stations further away from the epicentre of the earthquake. In this case, when you zoom in, while close to the epicentre, you are finding stations recording 2s and 3s, further away there are three stations recording 4s. There are too many factors involved to make any direct correlation easy. You see something similar, here. Kuitan (talk) 18:32, 5 February 2016 (UTC)
thread_title:  JSA <--> Seismic scale Conversion 

message: Is "Shindo" the ACTUAL, OFFICIAL name used for the scale in English?　Because in Japanese it's used as a generic term for magnitude or intensity, in fact the JMA　page linked to as a source seems to translate 震度 directly into "intensity". And if you look at the Japanese wiki page for 震度, it contains the JMA　scale, the Mercalli scale, MSK scale, EMS scale, Rossi-Forel scale, all of them using 震度. All signs seem to point to "intensity" as a measure in the JMA scale, with no special "shindo" term necessary in English. Identity0 (talk) 03:47, 15 August 2008 (UTC)
replies: text: On their English language site, the Japanese Meteorological Association when measuring seismic intensity talk of JMA Seismic Intensity. They have produced a PDF download in English that is available on their website  . Kuitan (talk) 18:38, 5 February 2016 (UTC)
replies: text: 震度 shindo as, used by the JMA to qualify the local shaking of earthquakes (it has other technical meanings, too), means (seismic) intensity; so No, it is not the (or even an) official English term. As Kuitan says, in its own English documents, the JMA uses “JMA Seismic Intensity” and “seismic intensity” interchangably; so I see no reason to overburden English readers with the Japanese term. Mentioning it once should be enough to satisfy readers who want to know what it’s called in Japanese. Jim_Lockhart (talk) 11:03, 22 January 2019 (UTC)
thread_title: 　Official term? 

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thread_title:  External links modified 

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thread_title:  External links modified 

message: I have capitalized Japan Meteorological Agency (JMA) Seismic Intensity Scale as the full, in the first paragraph because it is a proper noun. Jim_Lockhart (talk) 14:39, 18 January 2019 (UTC)
replies: text: No comment on the proper noun, but I do have a question for you. What did my edit summary say? Dawnseeker2000 15:03, 18 January 2019 (UTC)
replies: text: OK, gotcha. I hadn’t realized the significance of the WP:BOLDAVOID reference. Mea culpa, so I will go back and fix that. Thanks! Jim_Lockhart (talk) 07:33, 19 January 2019 (UTC)
thread_title:  Proper noun 

message: I have done a fairly heavy copyedit of the whole article, especially with regard to potentially confusing wording (e.g., earthquakes are not assigned an intensity; each gets assigned several).
However, I more or less gave up on the table—especially after discovering that the JMA provides a viable English version of it at http://www.jma.go.jp/jma/en/Activities/inttable.html. I think the wikitable should be removed in favor of a direct link to the JMA's page, but I'm not sure whether that would be a breach of Wikipedia procedure or etiquette; please advise.
Also, I think the article's title should be revised to Japan Meteorological Agency Seismic Intensity Scale (note capitalization: if the JMA's English website is anything to go by, this is the scale’s official name, making it a proper noun); but I don’t know how to make this change myself. Please advise. Jim_Lockhart (talk) 07:37, 20 January 2019 (UTC)
thread_title:  Heavy copyedit, but article's wikitable based on poor translation 

message: The content and rationale for my edits tpday ought to be self-evident. For the time being, I worked from Japanese sources (including the Japanese Wikipedia article) because I haven’t been able to track down English ones.
In the course of today’s session, I noticed that a lot of the source-reference links are dead or outdated. I’ll try to rectify them over the coming weeks.
Best regards, Jim_Lockhart (talk) 11:09, 22 January 2019 (UTC)
thread_title:  Edit of 22 January 

message: The entries in the Utilities column don't seem properly sequenced to me, but I'm no expert on this scale:
3. Unaffected
4. Interruptions (esp. electricity)
5. Automatic valves cut residential gas. Some water supply  interruptions. Blackouts.
6. Gas pipes and water mains are damaged. (Gas service and/or  water service are interrupted in some regions.)
7. Gas pipes and/or water mains will be damaged. Gas, water and  electricity are interrupted.
8. Occasionally, gas and water mains are damaged. (Electrical  service is interrupted. Occasionally, gas and water service are interrupted  over a large area.)
9. Electrical, gas and water service are interrupted.
For example, the "Occasionally" at beginning of Shindo 8 makes it sound less severe than 6 and 7, though the parenthetical statements at the end of 8 suggest to me that it's meant to apply to how widespread the outage is likely to be.
— soupvector (talk) 12:43, 22 March 2022 (UTC)
thread_title:  Utilities column descriptions not properly ascending from Shind 3 to 9?