Interstate 80 is closed again because of a sinkhole. Why does this keep happening? Mine shafts.
Showing posts with label geology. Show all posts
Showing posts with label geology. Show all posts
10 February 2025
04 October 2024
Helene resources at USGS
The USGS has created a special page for updates on the agency's Hurricane Helene response work.
06 February 2023
Earthquake maps
About 12 hours ago, Turkey had a 7.5 (or 7.8?) magnitude eatherquake. The USGS already has some interactive maps of the earthquake in Turkey. This contour map of impact shows how much it shook distant areas. Zoom out to see that there are areas of Georgia and Iraq, hundreds of miles away, that felt it as a 3.5.
The USGS also has a page called, "Did You Feel It?" where people can share "Felt Reports." A little bit of citizen science.
25 July 2020
17 December 2019
Another brilliant XKCD
The accompanying website, Explain XKCD, offers some background. The explanation includes details like the map projection, so this is safe for Geomatics students, too.
23 July 2015
Dramatically changed landscapes
The Globe and Mail reports on a lake in Canada that is about to "fall off a cliff." We tend to think of landscapes as being fairly stable. But this story has photos of an amazing process that forces us to think about a different scale of change occurring in this remote corner of the Northwest Territories. This hasn't been so widely circulated, but the photos after the collapse most likely will be viral for a few days.
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