The Philippines was hit by a 6.3 magnitude earthquake on April 22, 2019 and there is some interesting video of high-rise buildings swaying and of water from a rooftop pool cascading down to the ground. See below! One minor expletive in English, so only minor NSF. Thanks to Jim Withiam for the heads-up on this one.
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Haiti Earthquake
The magnitude 7.0 earthquake in the impoverished nation of Haiti has clearly had devastating consequences. I don’t know what I can add in terms of useful information except perhaps to point interested readers to these additional sources of information. This is truly a heart-breaking situation. Click through for the links. (Photo by UNDP Global)
Alaskan megathrust fault more active under Kodiak
The 1964 Alaska Earthquake was 9.2 in magnitude and caused dramatic destruction and dramatic examples of surface rupture, subsidence, and liquefaction. New paleoseismic evidence points to a previously unknown earthquake that happened on the same […]
Tectonics and Ancient Civilizations
A new study published in the current issue of Geoarchaeology claims that earthquake-prone areas along the edges of tectonic plates were far more likely to give birth to great ancient civilizations than less dynamic landscapes. The author of the paper, Eric Force, a (U of A Wildcat!) says that 13 of 15 ancient civilizations sites aren’t the product of chance. Instead, ancient people appear to have chosen to settle close to a tectonic plate boundary. The exceptions were in ancient China and Egypt. [Image Adapted from Eric R. Force, Geoarchaeology: An International Journal, 23 (2008)]