Episode 15 of the podClast is ready for download. You can grab the mp3 here (22.4 MB, 48:41), or subscribe through iTunes here. You can subscribe to the podClast RSS feed here. Or you can listen to it right here:

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It’s episode 15 of the podClast. Double earthquakes in Tonga, massive floods in Pakistan, single earthquakes in Haiti and California and a whole lot more. It’s a slow motion tsunami of geological discussion.

Participants

Chris - goodSchist (@yorrike)

Ron - Ron Schott’s Geology Home Companion Blog (@rschott)

Chris – Highly Allocthonous (@allocthounous)

Anne – Highly Allocthonous (@highlyanne)

(links in brackets are Twitter feeds)

Tonga Double Earthquake

The original papers revealing this apparently rare phenomenon appeared in the 19 August edition of Nature (466).

• The 2009 Samoa–Tonga great earthquake triggered doublet;Thorne Lay, Charles J. Ammon, Hiroo Kanamori, Luis Rivera, Keith D. Koper & Alexander R. Hutko; Nature 466 , 964–968 (19 August 2010)
• Near-simultaneous great earthquakes at Tongan megathrust and outer rise in September 2009; J. Beavan, X. Wang, C. Holden, K. Wilson, W. Power, G. Prasetya, M. Bevis & R. Kautoke,;Nature 466 , 959–963 (19 August 2010)

There’s a summary of the discovery at the BBC and Yahoo! news.

Pakistan Floods

The Wikipedia page ont he 2010 Pakistan Floods is a good place to get a handle on the disaster.

The NASA Earth Observatory satellite photos comparing last year’s with this years monsoon flooding can be found here.

And if you can spare a few dollars, there’s 20 million people who are in dia need of aid. There’s a list of charities here.

The impressive debris flow video we mentioned can be found at Dave’s Landslide Blog.

Haiti Earthquake

The 2010 Haiti earthquake was caused by a previously unknown fault. The BBC has a summary.

And there’s a brilliant summary page for the earthquake, including detailed information on the fault line which ruptured, on a page written by Eric Calais of Purdue University, Department of Earth and Atmospheric Science.

California Quake

The paper mentioning the periodically regular rupturing of the San Adreas Fault in the Carizzo Plain is:

• Century-long average time intervals between earthquake ruptures of the San Andreas fault in the Carrizo Plain, California; Sinan O. Akçiz, Lisa Grant Ludwig, J Ramon Arrowsmith and Olaf Zielke; Geology; September 2010; v. 38; no. 9; p. 787-790

There’s a good write up of the paper at Arrowsmith Blog.

Contributing

If you’re keen to hear a specific topic talked about, or would like to join the discussion during the next episode, either leave a comment below or email chris [the at symbol] goodschist.com. You’ll probably also do well reading the details on joining the podclast. If you don’t have the time to join us but would like to contribute a 3-5 minute audio clip to the show simply record it, make sure it’s an mp3, and send it to the address above.

Credit

The intro and exit music was Roots Fi Cool by Burning Babylon.

Text Addresses

The post that accompanies this podcast can be found at http://www.goodschist.com/2010/09/03/the-podclast-episode-15/or http://bit.ly/djNYbH and an archive of all podClasts can be found at http://www.goodschist.com/category/podclast/