Talk:Mount Pinatubo

date in article on Mount Pinatubo

text says "after 500 years of dormancy", however i feel this should be "after 460 years of dormancy"

Novarupta vs. Mt. Pinatubo

The referenced Mount Pinatubo eruption was not the largest of the 20th century. Some references have it as the second largest or the third largest. Please see the discussion at Talk:Novarupta. --Burntnickel 21:32, 9 April 2007 (UTC)

Infobox

In the infobox last eruption date field there is a link to the Smithsonian Global Volcanism site that is appearing as a reference (a number is brackets). This is confusing as this is not the same as the same numbered reference in the main body text and it does not appear in the list of references. I'm not sure what the prefered solution to this problem is. Should the link be removed, made and independant reference or what? --Burntnickel 12:15, 12 April 2007 (UTC)

Made into its own reference --- it's pretty easy: I did it. hike395 13:08, 12 April 2007 (UTC)

Thanks for fixing that. I wan't sure how to go about it. --Burntnickel 14:02, 12 April 2007 (UTC)

First Magmatic Eruptions: Which is Correct?

In the last paragraph of the "1991 Awakening" section, it clearly states: "The first magmatic eruptions occurred on June 3". However, this is contradicted two sections later in the first paragraph of the "Eruptions Build to a Climax" section, where it states: "On June 7th, the first magmatic eruptions took place". I would correct this information myself, if I knew which one was true. Anyone have any ideas? Curlyiain 15:36, 12 April 2007 (UTC)

Large amounts of new material redacted

The large amount of quoted PD material isn't appropriate to be simply stuck on the end of the article. I moved it to Talk:Mount Pinatubo/new material until we can integrate it back into the article. hike395 05:15, 14 September 2007 (UTC)

Trekking history of Mount Pinatubo

I have added a valuable information on the volcano's trekking history after its eruption in 1994. This information was from the wiki page of Dale Abenojar--Afrescom (talk) 06:54, 9 January 2009 (UTC)

Erupting?

The article says that Mount Pinatubo is an active stratovolcano. What is it doing now? Is it just smoking? --The High Fin Sperm Whale (talk) 00:01, 22 May 2009 (UTC)

active doesn't mean currently erupting. I've added a link to help clarify this. Its last eruption was in 1993; the bit of the infobox that said this was broken. -- Avenue (talk) 02:27, 22 May 2009 (UTC)

So does active mean that it has erupted recently and could erupt again? --The High Fin Sperm Whale (talk) 19:40, 23 May 2009 (UTC)

Here are monthly summaries of its activity since 1991.[1] Since 1995, the concerns have been over lahars more than eruptions, but yes, it could well erupt sometime in the future. -- Avenue (talk) 22:44, 23 May 2009 (UTC)

Innaccurate

"Although the 1991 eruption was one of the largest and most violent of the 20th century, it was weaker than any of the historical eruptions uncovered by geologists. There is some evidence that eruptions at Pinatubo are getting weaker over time, but this is by no means conclusively established." The c. 1450 eruption was even weaker, with VEI of 5! See Global Volcanism Programme. Guanlongwucaii (talk) 08:48, 27 May 2009 (UTC)GuanlongwucaiiHi!!

The appearance of lunar eclipses

According to the article, "in the year following the Pinatubo eruption, the moon was hardly visible at all during eclipses, due to much greater absorption of sunlight by dust in the atmosphere," however in a previous section it is mentioned that sunlight was attenuated by only 10 percent. Such a decrease can readily be identified by instrumentation, but is hard to notice otherwise. If the moon was indeed hardly visible, this is more likely due to aerosol scattering, not absorption. I also think this bit requires a source. Odedee (talk) 21:50, 21 June 2009 (UTC)

Is it active or dormant?

According to the "Activity since 1991" section, "Since 1991, Pinatubo has remained active, with twenty activity events reported in 1992, three in 1993, four in 1994, two in 1995, and one each in 1996 and 2002." But, under "The area since 1991", "Since 1992, the volcano has been dormant." Maybe it's fine, I have no clue -- I only bring it up because those two statements together confused me while reading this article. 31stCenturyMatt (talk) 04:06, 28 July 2009 (UTC)

Good call. Text adjusted to reflect scientific status of active. Gubernatoria (talk) 10:57, 28 July 2009 (UTC)

References used in the article

Some of the information in this article came from the sources listed below. If anyone requests more citations...:

Cynthia Banzon Bautista, The Mount Pinatubo Disaster and the People of Central Luzon

J.W. Ewert, Andrew B. Lockhart, Sergio Marcial, and Gemme Ambubuyog, Ground Deformation Prior to the 1991 Eruptions of Mount Pinatubo

David H. Harlow, John A. Power, Eduardo P. Laguerta, Gemme Ambubuyog, Randall A. White, and Richard P. Hoblitt, Precursory Seismicity and Forecasting of the June 15, 1991, Eruption of Mount Pinatubo

Richard P. Hoblitt, Edward W. Wolfe, William E. Scott, Marvin R. Couchman, John S. Pallister, and Dindo Javier, The Preclimactic Eruptions of Mount Pinatubo, June 1991

Remigio A. Mercado, Jay Bertram T. Lacsamana, and Greg L. Pineda, Socioeconomic Impacts of the Mount Pinatubo Eruption

Christopher G. Newhall, Arturo S. Daag, F.G. Delfin, Jr., Richard P. Hoblitt, John McGeehin, John S. Pallister, Ma. Theresa M. Regalado, Meyer Rubin, Bella S. Tubianosa, Rodolfo A. Tamayo, Jr., and Jesse V. Umbal, http://pubs.usgs.gov/pinatubo/newhall/index.html Eruptive History of Mount Pinatubo]

Ma. Lynn O. Paladio-Melosantos, Renato U. Solidum, William E. Scott, Rowena B. Quiambao, Jesse V. Umbal, Kelvin S. Rodolfo, Bella S. Tubianosa, Perla J. Delos Reyes, Rosalito A. Alonso, and Hernulfo B. Ruelo, Tephra Falls of the 1991 Eruptions of Mount Pinatubo

William E. Scott, Richard P. Hoblitt, Ronnie C. Torres, Stephen Self, Ma. Mylene L. Martinez, and Timoteo Nillos, Jr., Pyroclastic Flows of the June 15, 1991, Climactic Eruption of Mount Pinatubo

Stephen Self, Jing-Xia Zhao, Rick E. Holasek, Ronnie C. Torres, and Alan J. King, The Atmospheric Impact of the 1991 Mount Pinatubo Eruption

Robin J.S. Spence, Antonios Pomonis, Peter J. Baxter, Andrew W. Coburn, Mark White, Manuel Dayrit, and Field Epidemiology Training Program Team, Building Damage Caused by the Mount Pinatubo Eruption of June 15, 1991

Jean Tayag, Sheila Insauriga, Anne Ringor, and Mel Belo, People's Response to Eruption Warning: The Pinatubo Experience, 1991-92

Edward W. Wolfe and Richard P. Hoblitt, Overview of the Eruptions

Seperate eruption page

Would it be better to have a page about the volcano and a seperate page about the 1991 eruption event? TimKasoar (talk) 19:19, 22 October 2009 (UTC)

I think that sounds reasonable, since the Armero tragedy and the 1980 eruption of Mount St. Helens both have their own articles. --The High Fin Sperm Whale (talk) 21:25, 14 November 2009 (UTC)

Oppose. Most of the article is about the 1991 eruption. Separating it would reduce the remnant to little more than start level. Gubernatoria (talk) 06:07, 16 November 2009 (UTC)

Agree. "Separating it would reduce the remnant to little more than start level." this is one of the reasons why the page is undergoing a FA Review. --Guanlong wucaii 16:02, 9 March 2010 (UTC)

Featured Article?

This article is so good! Why is it no longer a featured article? Has anyone vandalised this page?--Small Boss (talk) 09:34, 20 April 2010 (UTC)

It met featured article standards in 2005, but standards have increased. The main reason it failed its FA review was the lack of references. --Avenue (talk) 01:21, 21 April 2010 (UTC)

Effect on global temperature

"This led to a decrease in northern hemisphere average temperatures of 0.5–0.6 °C (0.9–1.1 °F), and a global fall of about 0.4 °C (0.7 °F)."

I think it needs to be made clearer what measure of global temperature is being used here. A fall of this magnitude is not visible in either the CRU or GISS global temperature datasets:

CRU temperatures: http://cdiac.ornl.gov/trends/temp/jonescru/graphics/glnhsh.png - figure from http://cdiac.ornl.gov/trends/temp/jonescru/jones.html

GISS temperatures: http://data.giss.nasa.gov/gistemp/graphs/

Pagw (talk) 20:04, 25 June 2010 (UTC)

Cabusilan Mountains

These group of mountains which is part of the Zambales Mountain Range is verified by my references as just Cabusilan Mountains not Tri-Cabusilan Mountains. I am following the rules of verifiability per WP:Verifiability and WP:Verifiability, not truth. I could present ten more references to support just Cabusilan. Here, try using Google Books search for Cabusilan. Try searching for 'Tri-Cabusilan' and it will only give you books sourced from Wikipedia! Please stop spreading misinformation by using Wikipedia. Please read why verifiability is important. If Cabusilan is again changed to Tri-Cabusilan, then that would be considered as vandalism and reverted right away. Thanks. - Briarfallen (talk) 10:05, 28 March 2012 (UTC)

infrastructures

In the intro it says "destroying thousands of infrastructures".

Infrastructure is a collective noun so it is already plural and does not need to have an 's' on the end. Philip Sutton (talk) 03:15, 8 February 2013 (UTC)

CO2 emission

What was CO2 emission during explosion and eruption ?

What was total gas emission in atmosphere SO2 NO H2O CO2 etc ?

Please add this data — Preceding unsigned comment added by 213.92.193.141 (talk) 14:30, 22 November 2013 (UTC)

Good video at - https://www.youtube.com/watch?v=KNpdwd53qgM Merlin-UK (talk) 10:31, 20 December 2014 (UTC)