SonOfTheGods Posted August 16, 2013 (edited) http://gji.oxfordjournals.org/content/early/2013/04/04/gji.ggt076.full?sid=773da70a-2472-40cd-afe6-58d2b9553809 Based on studies of continuous waveform data recorded on broad-band seismograph stations in Africa, Europe and North America, we report evidences for two temporally persistent and spatially localized monochromatic vibrating sources (around 0.036 and 0.038 Hz, respectively) in the Gulf of Guinea, instead of just one source (0.038 Hz or 26 s) found 50 yr ago. The location of the 0.036 Hz source is close to the Sao Tome Volcano, therefore it may be related to volcano processes. However, the 0.038 Hz source cannot be explained with known mechanisms, such as tectonic or oceanic processes. The same size vibration in a location where there is no volcano or crack IAK KUTULU Edited August 16, 2013 by SonOfTheGods Share this post Link to post Share on other sites
