San Andreas

Audio freely avail. from KPCC forum event

2011-10-01T00:31:00.000-07:00

KPCC held a Crawford Family Forum event on earthquake disaster preparedness and I was among several panelists discussing earthquakes and how to get ready.

Click this link for the audio recording from this event.

Using LiDAR for earthquake research

2011-07-16T09:28:00.000-07:00

This nice video explains how people are using LiDAR for earthquake research.

Modern Methods of Observing Earthquakes - webcast

2010-04-01T08:50:00.000-07:00

Archived video of the public lecture series held at Caltech on Tues., March 30, 2010:

"Modern Methods of Observing Earthquakes"
[ http://www.ustream.tv/recorded/5843408 ]

My presentation on the LiDAR and Haiti field work is from 53:45 to 1:13:50, but I hope you'll find time watch the whole 2-hour program.

SAF Carrizo - part 3 - slideshow

2009-12-21T00:22:00.002-08:00

SAF Carrizo - part 2 - slideshow

2009-12-21T00:22:00.001-08:00

SAF Carrizo - part 1 - slideshow

2009-12-21T00:19:00.000-08:00

Oblique imagery

2009-09-18T09:08:00.000-07:00

The free bird's eye capability on bing maps provides an interesting way to explore the San Andreas fault.

Here is one example:

Oblique view of the San Andreas fault at Cajon Pass

Enjoy!

2009-06-20T02:03:00.000-07:00

On the way from Oakland back to Burbank a few days ago, our airplane flew right alongside the San Andreas fault from Loma Prieta to Gorman and I took photos, 105 new ones in all. These are now all posted on my Picasa site, and I hope you'll enjoy them.

http://picasaweb.google.com/kwhudnut/SanAndreasPhotosFromAirplanes?feat=directlink

Hour-long TV program on the San Andreas fault

2009-02-10T23:06:00.000-08:00

I hope that you will enjoy this episode on the San Andreas fault by The History Channel.

ShakeOut news coverage and interviews, etc.

2008-11-18T08:05:00.000-08:00

Here is the link to the ShakeOut video piece on MSNBC:

http://www.msnbc.msn.com/id/22425001/vp/27666717#27666717

A nice article on CNN with photos and video:

http://www.cnn.com/2008/TECH/science/11/13/quake.drill/

A lot of information is also linked up at this USGS site:

http://www.usgs.gov/homepage/science_features/shakeout.asp

Or this main site for ShakeOut:

http://www.shakeout.org/

ShakeOut blitz has begun - check this out...

2008-11-06T11:27:00.000-08:00

http://www.youtube.com/watch?v=clQpk4it_Tk

HCN article on SoSAFE & ShakeOut

2008-10-21T10:56:00.001-07:00

http://www.hcn.org/issues/40.19/the-coming-quake/

Lifeline Corridor Crossing the San Andreas fault

2008-10-16T10:47:00.000-07:00

This article appeared today and nicely explains the situation at Cajon Pass. A great San Andreas event with surface faulting through this and other lifeline corridor crossing points will potentially sever the links between the urban metropolitan area and the rest of the nation. Through the ShakeOut study, we see that the economic and social impacts of this are enormous. It is therefore crucial to plan for efficient repairs to these lifelines in the event of a real earthquake. ShakeOut is an opportunity for people to engage in such planning, and we have been working with the lifeline utilities operators to accomplish this and to encourage retrofitting and creative engineering solutions to make lifelines more resistant to earthquake damage.

http://www.highlandnews.net/articles/2008/10/16/news/04earthquake.txt

In the photo, a scarp along the San Andreas lies in shadow beneath my arm.

Cajon Pass - ShakeOut event

2008-10-09T08:48:00.000-07:00

The Sun newspaper article on the San Andreas fault and ShakeOut scenario:

http://www.sbsun.com/ci_10674385

... and photos from yesterday's event at Cajon Pass:

http://sbsun.mycapture.com/mycapture/enlarge.asp?image=20727198&event=610560&CategoryID=25953

Fun with the Qfaults on-line database

2008-10-08T00:23:00.000-07:00

Here is the main link to the Qfaults web site - start here:

http://earthquake.usgs.gov/regional/qfaults/

Now, try going to this link, then typing in San Andreas as the fault name.

http://gldims.cr.usgs.gov/webapps/cfusion/Sites/qfault/index.cfm

It should return more links, and for each of the 10 section you can then click to bring up various levels of detailed information about each fault section.

This is a very nice compilation of references by Bill Bryant and colleagues from the California Geological Survey, and a convenient way to look up published information.

Mud Pots - an extension of San Andreas fault?

2008-07-30T22:44:00.000-07:00

Mud Pots Signal Possible Extension Of San Andreas Fault

ScienceDaily (2008-07-29) -- A linear string of mud pots and mud volcanoes suggest surface evidence for a southern extension of the San Andreas Fault that runs through the Salton Sea, according to a paper published in the August issue of the Bulletin of the Seismological Society of America.

Nature article - Earthquake Prediction

2008-07-09T11:59:00.000-07:00

Here is a BBC article on the recent Nature letter by Niu et al., which describes a new method and potential for earthquake prediction.

The article is entitled Preseismic velocity changes observed from active
source monitoring at the Parkfield SAFOD drill site and the authors claim to have detected anomalous velocities in rock prior to rupture in two small earthquakes near Parkfield, California the experimental site on the San Andreas fault. Here is the abstract.

In 1999, Nature moderated a fascinating debate on earthquake prediction that I encourage people to read as well as the latest findings.

San Diego Natural History Museum

2008-06-30T16:55:00.001-07:00

Last Friday, after giving a talk on ShakeOut to a group called InfraGard at the San Diego Natural History Museum, I had the pleasure to try out the new display on the 2nd floor that allows visitors to make the fault move with their own hands! The offset at Wallace Creek can be manually cranked backwards and forwards to illustrate how the offset formed. Also, the classic collection of Shelton's aerial photos of the San Andreas and other points of geological fascination on the third floor were spectacular.

San Andreas - photos from airplanes & a helicopter!

2008-06-21T22:16:00.000-07:00

Here are some photos of the San Andreas that I've taken from various aircraft (usually commercial planes, and recently a helicopter). Picassa allowed me to locate them on a map. Follow this link and try clicking 'view map' - then you can hit 'play' and it will take you on a slide show trip down the fault. There's also a link that allows you to download an HTML file that you can then view using Google Earth, etc. If there's interest I'll add captions later.

ShakeOut Press Release

2008-05-28T12:44:00.000-07:00

USGS and our partners released the ShakeOut earthquake scenario details

A narrative description is contained in a USGS Circular

The full technical report is also now available.

UCERF Press Release

2008-04-14T10:07:00.000-07:00

A press conference is taking place now on the new Uniform California Earthquake Rupture Forecast (UCERF).

This is important and I hope you will take the time to read and study this report which is available from USGS in full detail here.

A large group of scientists, led by my colleague Ned Field (USGS), put together a new seismic hazard estimate for the State of California. This work is inherently important for having made a uniform statewide product, and for identifying a fresh new research agenda for the future.

Pop Culture in California - TV's Eli Stone - only M6.8?

2008-04-14T09:54:00.000-07:00

Did you watch last night's episode of Eli Stone? He and also quite an eccentric 'mad scientist' character successfully predicted a damaging earthquake in San Francisco. Eli has a premonition in a day dream due to his brain aneurysm. Wow! Anyhow, the crazy lawyer and crazy scientist somehow convince the Mayor to close the Golden Gate bridge, which is then damaged badly. Oh well, I guess someone figures this is what people want to see on TV - is it really? This makes me think we should pay for cable so that we can watch some worthwhile documentaries on science instead.

ShakeOut participants

2008-03-27T23:03:00.000-07:00

We are asking everyone in SoCal to participate in ShakeOut, and many organizations and people are already joining up. Today, I was very impressed by the level of intensity shown by LADWP, who have just performed a preliminary set of exercises as part of the lead-in to the main ShakeOut event. They are checking their systems and already discussing what can be done to improve. We're hoping that other major utilities will participate at such a high level. The LADWP General Manager came to personally hear the outbriefs on water and power systems, then to guide response efforts and direct recovery in the simulation. I was very pleased at how the exercise went today, and this was an early step of many they will take.

On May 5th, there will be a USGS-OES press conference in Ontario to announce more details of the ShakeOut scenario, and to encourage widespread public participation in the Nov. 13th main event.

On July 16th, LADWP will hold a full-scale exercise based on the ShakeOut scenario, along with a series of related activities to make their systems more robust.

ShakeOut - a simulated Big One on the San Andreas fault

2008-03-26T23:00:00.000-07:00

I have worked with colleagues to create a scientifically realistic great San Andreas fault earthquake, that is, a Big One. It has been a major effort, funded by the USGS Multi-Hazards Demonstration Project, to develop a detailed scenario including physical impacts and damages from the surface faulting and shaking caused by the earthquake. On November 13, 2008 quite likely the largest earthquake response exercise ever conducted in the USA will take place based on the ShakeOut earthquake scenario, as we call it. The idea of this is to achieve several things, including raising public awareness of earthquake hazards. Most importantly, I think, is that we will engage people in thinking about vulnerabilities we face as a society. Some of these vulnerabilities are relatively obvious, and yet would cost a lot to retrofit ahead of time. By discussing such issues with responsible organizations, we hope to motivate an even higher level of effort in capital investment in critical infrastructure. We hope to make southern California overall far more resilient, so that a future great earthquake need not be a catastrophe.