https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhVsohD4Sxlv_DRdoO-oPe86LWxKtDq4BkSl2d5fpkargXIyIdP7hUqkS5PhIitTswcgbYIy3-Fsf7zxlWbKqByiDh9hmkvVWxyRJP4gMfCwi1I-EVIQug8pHxDgaPluv-EuebseXT3Tnra/s1600-h/dodec+lines+on+earth+2.GIF
Plane-face dodecahedron (left) to spherical icosadodecahedron (center & right), great circles, small circles on pent faces may be ocean/air gyres, polar axis vs solar-lunar tides
http://www.progonos.com/furuti/MapProj/Normal/ProjPoly/Foldout/TIcosahedron/Img/ticGn-s128-z5.eos.png
A truncated icosahedron globe
Showing posts with label quake. Show all posts
Showing posts with label quake. Show all posts
Thursday, March 1, 2012
Saturday, January 9, 2010
Earthquake offshore Eureka
Chile earthquake/tsunami: http://wcatwc.arh.noaa.gov/2010/02/27/725245/08/ttvu725245-08.jpg
New Update: Feb 4
The Jan 9th quake caused our Muni building to be red tagged, forcing us to move to another building in downtown Eureka. This morning at our meeting, I mentioned being grateful that we didn't have more quakes lately. Half an hour later, we had another earthquake! A small one offshore, 5.9 on Richter scale although it felt like a 4.0 locally. Now we have a bad windstorm blowing outside, the big trees blown sideways... what a day!
Update: Jan 10
shake & quake
A strong earthquake occurred at 4:27:38 PM (PST) on Saturday, January 9, 2010.
The magnitude 6.5 event occurred 43 km (27 miles) W of Ferndale, CA.
The hypocentral depth is 22 km (14 miles).
Magnitude 6.5 - regional moment magnitude (Mw)
Time Saturday, January 9, 2010 at 4:27:38 PM (PST)
Distance from Ferndale, CA - 43 km (27 miles) W (280 degrees)
Humboldt Hill, Eureka, CA - 48 km (30 miles) W (259 degrees)
- Jan 9
We had a quake about 5pm, more roller than rocker, either a 6 or 6.5, I had estimated a 5.5 - 6.0 on Richter scale. Haven't heard of any tsunamis.
Rockers are worst, when 2 waves collide at an angle, very jolting.
Rollers are single directional, so unless very large they just move like a normal surf wave.
I happened to be outside near the garden, so no problem except possible electric wires breaking (they were whipsnapping a lot). No external cracks in the Muni bldg [except a crack in the ramp], a window fell out, lots of plaster fell from the ceiling, books and art fell, etc. no injuries here. Lights back on by 11pm. [Part of the building shifted up a bit.]
After working so hard on the new wood floor and painting the galleries... alas.
New Update: Feb 4
The Jan 9th quake caused our Muni building to be red tagged, forcing us to move to another building in downtown Eureka. This morning at our meeting, I mentioned being grateful that we didn't have more quakes lately. Half an hour later, we had another earthquake! A small one offshore, 5.9 on Richter scale although it felt like a 4.0 locally. Now we have a bad windstorm blowing outside, the big trees blown sideways... what a day!
Update: Jan 10
shake & quake
A strong earthquake occurred at 4:27:38 PM (PST) on Saturday, January 9, 2010.
The magnitude 6.5 event occurred 43 km (27 miles) W of Ferndale, CA.
The hypocentral depth is 22 km (14 miles).
Magnitude 6.5 - regional moment magnitude (Mw)
Time Saturday, January 9, 2010 at 4:27:38 PM (PST)
Distance from Ferndale, CA - 43 km (27 miles) W (280 degrees)
Humboldt Hill, Eureka, CA - 48 km (30 miles) W (259 degrees)
- Jan 9
We had a quake about 5pm, more roller than rocker, either a 6 or 6.5, I had estimated a 5.5 - 6.0 on Richter scale. Haven't heard of any tsunamis.
Rockers are worst, when 2 waves collide at an angle, very jolting.
Rollers are single directional, so unless very large they just move like a normal surf wave.
I happened to be outside near the garden, so no problem except possible electric wires breaking (they were whipsnapping a lot). No external cracks in the Muni bldg [except a crack in the ramp], a window fell out, lots of plaster fell from the ceiling, books and art fell, etc. no injuries here. Lights back on by 11pm. [Part of the building shifted up a bit.]
After working so hard on the new wood floor and painting the galleries... alas.
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