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reply to post by TrueAmerican
In May 1980, a strong earthquake swarm that included four Richter magnitude 6 earthquakes struck the southern margin of Long Valley Caldera associated with a 10 inch (25-cm), dome-shaped uplift of the caldera floor. These events marked the onset of the latest period of caldera unrest that continues to this day. This ongoing unrest includes recurring earthquake swarms and continued dome-shaped uplift of the central section of the caldera (the resurgent dome) accompanied by changes in thermal springs and gas emissions.
What's going on in Nevada?
Originally posted by ButterCookie
Update since Alaska's 3.0
a 3.9 then a
and another 4.0
MAG UTC DATE-TIME (y/m/d h:m:s) LAT (deg) LON (deg) deg DEPTH km LOCATION4.0 2011/04/15 18:21:31 38.391 -118.753 10.0 19 km ( 12 mi) SW of Hawthorne, NV 4.0 2011/04/15 17:24:25 38.395 -118.742 15.9 18 km ( 11 mi) SW of Hawthorne, NV 3.9 2011/04/15 17:06:38 38.400 -118.734 15.6 17 km ( 11 mi) SW of Hawthorne, NV
Friday, April 15, 2011 at 22:21:29 UTC
Friday, April 15, 2011 at 03:21:29 PM at epicenter
36.2 km (22.5 miles)
6 km (4 miles) NW (320°) from Hawthorne, NV
27 km (17 miles) E (90°) from Wichman, NV
31 km (19 miles) NNW (337°) from Qualeys Camp, NV
244 km (152 miles) E (89°) from Sacramento, CA
horizontal +/- 0.7 km (0.4 miles); depth +/- 0.5 km (0.3 miles)
NST= 7, Nph= 6, Dmin=23.4 km, Rmss=0.06 sec, Gp=112°,
M-type=local magnitude (ML), Version=7
Seismological Laboratory, University of Nevada, Reno
Originally posted by TrueAmerican
If you are only watching the USGS reports, you are not getting the full picture.