California hits 843 quakes and El Salvador gets a 7.3
Most of the time California runs in the 300-400 range on total quakes over 2 weeks. I’ve seen 500 ish before. 800+ is ‘way strange’ in my experience. Add in that El Salvador had a 7.3 and it looks to me like “something is up” on the Pacific Coast of North and Central America. Check your kits, buy some extra food, and fill the tank on the car. Leave the car on the driveway if you usually park in the garage, for the next couple of weeks.
Static captures of images:
We’ve got 843 quakes on that map (most of them very tiny). The one down near the Salton Sea is a 5.5 (but has a LOT of small quakes around it). Remember that that is a spreading zone. It is where Baja California is being ripped from the North American land mass. It was filled in by sediment from the Grand Canyon, but is about 9 miles deep of ‘sandy stuff’ and debris, not hard rock.
Some months back (perhaps a year or two?) there were several 7.x quakes down in / near Peru / Chile. Then some up near Columbia. It looks to me like the energy is getting further north…
UPDATE 31 Aug 2012
Here’s a copy of California over 1000 quakes and a close up on the Salton Sea area showing it is the bulk of them at 748:
Magnitude 7.3 – OFFSHORE EL SALVADOR
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2012 August 27 04:37:20 UTC
This event has been reviewed by a seismologist.
Monday, August 27, 2012 at 04:37:20 UTC
Sunday, August 26, 2012 at 10:37:20 PM at epicenter
Time of Earthquake in other Time Zones
Location 12.278°N, 88.528°W
Depth 20.3 km (12.6 miles)
Region OFFSHORE EL SALVADOR
Distances 111 km (68 miles) S of Puerto El Triunfo, El Salvador
118 km (73 miles) S of Usulutan, El Salvador
123 km (76 miles) S of San Rafael Oriente, El Salvador
133 km (82 miles) S of Santiago de Maria, El Salvador
Location Uncertainty horizontal +/- 16.1 km (10.0 miles); depth +/- 4.2 km (2.6 miles)
Parameters NST=345, Nph=345, Dmin=130.2 km, Rmss=1.21 sec, Gp= 65°,
M-type=(unknown type), Version=D
Magnitude: USGS NEIC (WDCS-D)
Location: USGS NEIC (WDCS-D)
Event ID usc000c7yw
Note: The USGS is now putting up a red border box; warning folks to move to their new interactive pages (as these are deprecated). Eventually they will just pull the plug and these postings will all fail to load images that are live.
The interactive stuff is interesting, but you can’t embed images from it the way you can with the old stuff, so I don’t really have a choice (yet). Maybe I’ll figure out how to imbed live versions of the ‘new stuff’ eventually… but don’t be surprised if ‘someday’ the Quake postings just fail.
The saved static images will still exist, but all the live images below will fail.
Asia and Russia
Australia / New Zealand
This is a live map of the Australia / Indonesia / New Zealand area:
Action Closer to Me
As I live in California, it makes it easier for me if I keep them in the list where I can see what’s shaking near me.
Here is an alternative view of things with the fault lines highlighted:
Map of Plates
You can see it is where plates collide here:
Some Volcano Stuff
http://pangea.stanford.edu/~dsinnett/Pages/Links.html has a nice collection of links to volcano monitor pages. Just click the pictures for the different volcano observatories.
The Smithsonian page:
USGS Page listing recent major quakes: