The Gulf Stream is ensuring the mild climate in Europe, everyone knows that. But does it really? Read Chris Rowan’s article on climate, Gulf Stream, heat capacity and atmospheric circulations.
Ritz et al. published a paper on the paleoseismicity of the North Tehran Fault, Iran. From trenching studies they claim at least 6 surface-rupturing events during the last 30 ka. Read the paper here at JGR-Solid Earth. Ritz, J.-F., H. Nazari, S. Balescu, M. Lamothe, R. Salamati, A. Ghassemi, A. Shafei, M. Ghorashi, and A. Saidi, 2012: Paleoearthquakes of the past 30,000 years along the North Tehran Fault (Iran), J. Geophys. Res., 117, B06305, doi:10.1029/2012JB009147.
Dave Petley found a great video showing a rockfall at Hawai’i’s Halema’uma’u West Rim lava lake. Great to see how the side wall partly collapses. The rock masses then crash into the bubbling lava and the dust cloud rises immediately, driven by the thermal:
Our colleague Murat Ersen Aksoy, currently working in Lisbon, pointed us to a fascinating video on earthquake environmental effects of the M6.0 Oludeniz, Turkey earthquake of 10 June. The video shows a paraglider witnessing a huge dust cloud rising from the mountains after the shaking caused rockfalls and raised dust from the slopes:
If you speak Turkish, you can find more info here.
You probably heard that debris from the Tohoku tsunami was washed into the Pacific and already has been encountered at the North American west coast. Well, now an extraordinary large piece of debris has been washed upon the shore of Oregon – 165 tons of steel and concrete! Read the story about the dock here at the LA Times.
Have a nice weekend!