New papers on paleoseismology, tsunami, and active tectonics (Apr 2017)

Today in the paper round-up (April 2017): Active Tectonics of the Makran, postseismic deformation at Bam, active faults and paleoseismology in Italy, Switzerland & Alaska, the first papers on the Kaikoura earthquake, tsunamis in Chile and the Western Mediterranean, and faults in Mexico. Enjoy reading! Continue reading “New papers on paleoseismology, tsunami, and active tectonics (Apr 2017)”

Postdoctoral Research Assistant Position/ Upper plate deformation – Mexican subduction, available March 2017

The following open position might be of interest to the paleoseismology community:

“We are seeking a Postdoctoral Research Assistant for a 12 month fixed term appointment working on the exciting new UNAM-CONACYT-funded project on “Spatial and Temporal Variations of Upper Plate Deformation across the Guerrero portion of the Mexican Subduction Zone” at the Institute of Geography and the Environmental Geophysics University Laboratory (LUGA), National Autonomous University of Mexico (UNAM), Campus Mexico City. The candidate will pursue fundamental and applied research into the assessment of both temporal and spatial vertical crustal deformation associated with both slow (interseismic) and rapid (coseismic) crustal deformation across the inner forearc region of the central Mexican subduction zone on the Guerrero sector, where the Cocos plate underthrusts the North American plate. The candidate will be responsible for the development and execution of laboratory and field research, conduct studies to develop a model of long-term deformation, writing reports and papers. Continue reading “Postdoctoral Research Assistant Position/ Upper plate deformation – Mexican subduction, available March 2017”

The 2010 M7.2 El Mayor-Cucapah earthquake caused slip on other faults in California, too!

On 4 April, 2010, the El Mayor-Cucapah earthquake occurred in NW Baja California, Mexico. It was magnitude 7.2 strike-slip event, and the (surface) ruptures were distributed over a set of faults in the area, among them the Laguna Salada Fault. The epicentral area was under surveillance by a technique similar to DInSAR –  Uninhabited Aerial
Vehicle Synthetic Aperture Radar (UAVSAR). Comparison of images from before and after the M7.2 earthquake revealed that slip occurred not only in the epicentral area and at the Laguna Salada Fault, but also on faults to the north. These findings were recently published by Donnellan et al. (2014). Continue reading “The 2010 M7.2 El Mayor-Cucapah earthquake caused slip on other faults in California, too!”

Fieldtrip guide for download: 4D Architecture of an Oblique Rift Margin – Paleoseismology of the Borrego and Laguna Salada Faults (MEX)

The Friends of the Pleistocene went on a fieldtrip few days ago to study the 4D Architecture of an Oblique Rift Margin in Baja California, NW Mexico. The tour focussed on the paleoseismology of the Borrega and Laguna Salada Faults, especially on the 1982 and 2010 surface ruptures, and took place fom 27 February to 2 March, 2014. You can download the detailed field guide and the road log here. Continue reading “Fieldtrip guide for download: 4D Architecture of an Oblique Rift Margin – Paleoseismology of the Borrego and Laguna Salada Faults (MEX)”

What’s up? The Friday links (58)

It’s time to revive the Friday Links tradition, I just realized that it fell asleep in March…

A paper published in Science few hours ago deals with the energy release of one of the strangest mega-quakes that we have ever observed, the M8.3 Okhotsk event of 24 May 2013. The interesting thing is that is occurred in more than 600 km depth! In the same issue of the journal another paper describes attempts to perform analogue experiments of such events in the lab. If you just want to get a rough idea about the studies or have no access to science, I recommend to check out Andrew Alden’s article at kqed science. Continue reading “What’s up? The Friday links (58)”

Paleoseismology course at the Annual Meeting of the Union Geofisica Mexicana on 2 and 3 November

A course on Paleoseismology and Archeoseismology will be held at the Annual Meeting of the Union Geofisica Mexicana on 2 and 3 November 2013. The course will be coordinated by Víctor Hugo Garduño. Also, we would like to advertise three special sessions on paleoseismology, faults, and active tectonics at the same meeting:

Continue reading “Paleoseismology course at the Annual Meeting of the Union Geofisica Mexicana on 2 and 3 November”

New video: 2012 INQUA workshop on Paleoseismology, Archeoseismology and Active Tectonics in Morelia, Mexico

Last year the 3rd INQUA – IGCP567 Workshop on Paleoseismology, Archeoseismology and Active Tectonics took place in November in Morelia, Mexico. It was a great meeting and I have already posted a lot of photos here, here, here, here, and here. Now I have found the time to look at the video clips that I made. I’ve prepared a short movie with the highlights of the conference. You see, you must not miss the upcoming conference in AachenContinue reading “New video: 2012 INQUA workshop on Paleoseismology, Archeoseismology and Active Tectonics in Morelia, Mexico”

Earthquakes and dust clouds

Today’s post of the Landslide Blog about a rockfall caused by a volcanic earthquake reminds me about something that’s in my mind for years already. Could we use dust deposits as a paleoseismological archive? Dust clouds of all sizes, ranging from tiny to huge, can be associated with seismic shaking, especially in arid and mountainous regions. Here I have collected a few videos I found on YouTube. When large amounts of dust settle they should form a distinctive layer recognizable in the sedimentary record, comparable to volcanic ash deposits. Of course they will be harder to be identified, since the material is the local one. I guess this could be done, similar to turbidites in marine paleoseismology. There are papers that describe changes in the aerosol content in the atmosphere after earthquakes, so why not look for them on earth? Continue reading “Earthquakes and dust clouds”

What’s up? The Friday links (56)

It’s been a while since the last Friday links, so today’s list is rather long. Of course the Russian meteoroid-meteor-meteorite (yes, in this order!) was an absolutely amazing, though destructive phenomenon. The air blast was registered equivalent to an earthquake of magnitude 2.7. Read Livescience’s article here and read this text to get to know about meteors and seismograms in general. Continue reading “What’s up? The Friday links (56)”