Talk:Nankai megathrust earthquakes

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A fact from Nankai megathrust earthquakes appeared on Wikipedia's Main Page in the Did you know column on 8 December 2009 (check views). The text of the entry was as follows:

Did you know... that in 1854 the southern coast of Honshū, Japan, was hit by tsunamis caused by two great megathrust earthquakes on December 24 and 25?

A record of the entry may be seen at Wikipedia:Recent additions/2009/December.

Wikipedia

Proposed move to Nankai megathrust earthquakes

I am intending to move this page to Nankai megathrust earthquakes, as most of the events listed involve more than just the Nankai segment of the plate interface. The page will then be able to properly include all the Tonankai and Tokai earthquakes and get rid of all the redlinks. Mikenorton (talk) 21:49, 29 November 2009 (UTC)[reply]

Note: this was from Nankai earthquakes to Nankai megathrust earthquakes.

Thanks for this Mike! I’ve since expanded this so there are now 3 separate articles for the individual sections: Nankai earthquakes, Tōnankai earthquakes, and Tōkai earthquakes, in addition to the overall article for Nankai megathrust earthquakes. This largely mirrors the Japanese structure (Japanese has other subarticles, but same major ones), so seems right.

—Nils von Barth (nbarth) (talk) 02:49, 21 July 2014 (UTC)[reply]

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List of occurrences

It would be great if the info in the table matched the diagram alongside! For example,

Comparison of table and graphics
Table row no.	Table date	Graphic no.	Graphic date
1	26.11.684	1	29.11.684
2	22.8.887	2	26.11.887
3	11.12.1096	3	10??
4	16.2.1099	4	C + D 17.12.1096; A + B 22.2.1099
		5	13.8.1185
5	14.11.1360	6	C 22.11.1360; A + B 3.8.1361
6	26.7.1361
7	11.9.1498	7	C + D + E 20.9.1498; A + B ??.??.1498
8	3.2 1605	8	3.2.1605
9	28.10.1707	9	28.10.1707
10	23.12.1854	10	C + D + E 23.12.1854
11	24.12.1854	10	A + B 24.12.1854
12	7.12.1944	11	C + D 7.12.1944
13	24.12.1946	11	A + B 21.12.1946

Can the dates be made to match?
Can there be a diagram for each row of the table? For example, there's no row to match the date of 13.8.1185 in the diagram.
It looks like C + D in graphic 4 correspond with row 3 of the table; and A + B in graphic 6 correspond with row 6 of the table.
Prisoner of Zenda (talk) 09:48, 28 October 2020 (UTC)[reply]

I've changed the dates to match with the individual earthquake articles where they exist. The discrepancies are mostly due to differences between the Julian and Gregorian calendars. I'll check the others, but it would make sense to be consistent throughout. Mikenorton (talk) 11:56, 28 October 2020 (UTC)[reply]

Thanks, Mike. Prisoner of Zenda (talk) 01:03, 29 October 2020 (UTC)[reply]

This source confirms what I suspected and gives dates using both calendars. I'll change the table to be all Gregorian and add a note to that effect, so that it's clear. I'll take a look at the rupture areas. Mikenorton (talk) 12:48, 30 October 2020 (UTC)[reply]

Expand Japanese

The Japanese-language version of the article is much more fleshed out, and the English-language article should be similarly expanded. Given the looming danger of the earthquake think the English-language version merits a prompt expansion. Once the earthquake happens this article will get a lot of attention. seefooddiet (talk) 19:32, 18 August 2024 (UTC)[reply]

We first have to agree that all the extra detail about the individual earthquakes is worth having in this article. I'm not convinced. The links to the individual earthquake articles are there for a reason. Mikenorton (talk) 19:47, 18 August 2024 (UTC)[reply]

Agree that the individual earthquakes should be covered WP:SUMMARY style, but the article has more information than that. It also covers the history of research on the topic, predictions about the upcoming earthquake, and info about the prediction models. I think at the very least it's hard to say that there isn't at least a moderate amount of information that should be transferred over to enwiki. seefooddiet (talk) 19:56, 18 August 2024 (UTC)[reply]

I'm not suggesting that the Japanese-language version cannot be a useful source for expanding/adding to the existing article, as long as it's not a wholesale translation. I find the Japanese version to be somewhat repetitive and not always encyclopaedic in tone (assuming that Google Translate is doing a reasonable job). Mikenorton (talk) 16:28, 19 August 2024 (UTC)[reply]