Salton Buttes
eklemetti | January 23, 2010Outcrops of Obsidian Butte, California, near the Salton Sea.
A brief update on the two earthquake swarms making news right now:
Yellowstone
The earthquake swarm at Yellowstone is still rumbling along, reaching over 1,000 earthquakes measured over the last week. However, the swarm has begun to die down overnight - with no earthquakes between 10:41 PM (MST) on 1/22 and 6 AM on 1/23. However, although this is a longer, bigger swarm than normal, it still isn't out of the regular rumblings at Yellowstone caldera. The USGS continues to say this swarm is tectonic, rather than magmatic or…
eklemetti | March 30, 2009Image courtesy of the Southern California Earthquake Center
I have to admit, I've only been perpherially following the earthquake swarm currently going on in Southern California, near the end of one of the strands of the San Andreas fault out below the Salton Sea (see the bottom of the map above). The "Bombay Beach" swarm (as I'll call it ... beats me what most people are calling it) is being closely monitored by the USGS. However, from what I had heard from a friend of mine with a more structure/tectonics background, looked like tectonic quakes with "beachball focal mechanism solutions" that…