| Subj: | yc |
| Date: | 12/20/00 7:57:06 AM Pacific Standard Time |
| From: (Goble David) To: bardsquill@aol.com ('bardsquill@aol.com') |
|
magma movement at Yellowstone Caldera...?...
more harmonic tremors...from three stations...
time...0511-0525 MST
date...12/20/2000
frequency...approximately...2-1/2 cycles per minute...or...0.0417 Hertz
strongest indication from Norris Junction Station...and...weakest from
Joseph Coat Station...
but...this may be an instrumentation artifact...hard to know if calibration
is to some common standard and each instrument has the same sensitivity...
for an example of saturated sensitivity...look at Madison River Station...
Old Faithful...
http://www.seis.utah.edu/helicorder/ut.YFT_EHZ_WY.2000122000.gif
Norris Junction...
http://www.seis.utah.edu/helicorder/ut.YNR_EHZ_WY.2000122000.gif
Joseph Coat...
http://www.seis.utah.edu/helicorder/ut.YJC_EHZ_WY.2000122000.gif
Madison River...
http://www.seis.utah.edu/helicorder/ut.YMR_SHZ_WY.2000122000.gif
Yellowstone Caldera Seismograph Stations...
http://www.seis.utah.edu/helicorder/misc/ynpwebcord.gif
\Date: 12/21/00 11:36:38 AM Pacific Standard Time
From: goble
the recent earthquakes near Burney...
4.6 2000/12/20 15:39:14 40.989N 121.697W 19.3 12 km ( 7 mi) N of
Burney, CA
4.3 2000/12/20 15:22:54 40.990N 121.698W 11.2 12 km ( 8 mi) NNW of
Burney, CA
are occurring in part of a right-lateral strike slip zone of faults known as the Walker Lane Belt... they have a seismic signature typical of tectonic-type earthquakes...and...it is HIGHLY UNLIKELY that these earthquakes are volcanic in nature... the only places where you are likely to see long-period (LP)...non-double-couple earthquakes...harmonic tremors...associated with underground magma movement are...in Long Valley Caldera (LVC)...in Yellowstone Caldera (YC)...etcetera... or...DIRECTLY UNDER the stratovolcanoes...Ranier...Hood...Shasta...etcetera... as previously reported...
the Walker Lane Belt (WLB) is probably the southern exit zone for induced Basin & Range shear...via the Tahoe-Almanor Graben (THAG)...to the co-linear Blanco Fracture Zone (BLFZ)...
the following are right-lateral strike-slip co-linear tectonic-type earthquakes that have occurred in the last year within the northwest to southeast trending WLB...
4.6 2000/12/20 15:39:14 40.989N 121.697W 19.3 12 km ( 7 mi) N of
Burney, CA
4.3 2000/12/20 15:22:54 40.990N 121.698W 11.2 12 km ( 8 mi) NNW of
Burney, CA
*************************************************************
3.8 2000/11/16 05:06:52 40.497N 119.479W 3.0 16 km (10 mi) S of Phil,
NV
3.7 2000/10/12 02:31:04 40.495N 119.443W 0.0 17 km (10 mi) S of Phil,
NV
*************************************************************
4.3 2000/11/19 04:54:50 40.490N 119.515W 4.9 14 km ( 8 mi) ENE of Smoke
Creek, NV
4.2 2000/11/16 05:06:55 40.358N 119.593W 0.0 12 km ( 7 mi) SSE of Smoke
Creek, NV
************************************************************
3.4 2000/12/18 10:41:07 40.171N 120.264W 0.0 10 km ( 6 mi) SE of Honey
Lake, CA
************************************************************
3.5 2000/11/25 09:38:20 39.676N 119.293W 8.9 8 km ( 5 mi) NNW of
Fernley, NV
*************************************************************
2.6 2000/12/17 13:14:48 39.465N 119.413W 13.9 16 km (10 mi) WNW of Silver
Springs, NV
*************************************************************
2.4 2000/12/20 10:02:00 39.125N 119.070W 0.0 17 km (11 mi) NNE of
Yerington, NV
**************************************************************
2.7 2000/11/17 11:06:10 39.030N 118.187W 0.0 18 km (11 mi) E of
Rawhide, NV
*************************************************************
2.7 2000/11/17 11:06:10 39.001N 118.111W 7.4 22 km (14 mi) NW of Gabbs,
NV
*************************************************************
4.1 2000/11/15 23:29:27 38.713N 118.558W 0.0 22 km (13 mi) NNE of
Hawthorne, NV
*************************************************************
4.2 2000/09/26 00:27:28 38.669N 119.484W 10.0 20 km (12 mi) SW of Smith,
NV
4.5 2000/09/26 00:20:28 38.691N 119.498W 10.0 19 km (12 mi) SW of Smith,
NV
*************************************************************
2.4 2000/12/20 09:00:02 38.257N 118.635W 0.0 11 km ( 7 mi) WSW of
Qualeys Camp, NV
*************************************************************
3.6 2000/08/17 16:36:07 37.846N 118.219W 4.9 48 km (30 mi) SSW of
Tonopah Junction, NV
3.2 2000/08/06 06:00:44 37.853N 118.203W 4.5 47 km (29 mi) SSW of
Tonopah Junction, NV
4.2 2000/03/04 08:13:22 37.850N 118.200W 1.5 47 km (29 mi) S of Tonopah
Junction, NV
***************************************************************
3.7 2000/12/15 06:44:07 37.472N 114.318W 15.0 9 km ( 5 mi) WSW of
Joseco, NV
**************************************************************
3.6 2000/11/13 08:06:12 37.372N 117.131W 0.0 14 km ( 9 mi) NE of Tokop,
NV
2.9 2000/12/17 09:30:28 37.408N 117.142W 0.0 16 km (10 mi) NE of Tokop,
NV
*************************************************************
2.1 2000/12/18 18:40:07 37.291N 117.852W 7.5 15 km ( 9 mi) SE of Deep
Springs, CA
*************************************************************
2.1 2000/12/17 09:16:35 36.531N 116.229W 7.5 30 km (19 mi) NNE of Death
Valley Junction, CA
************************************************************
2.6 2000/12/20 10:54:47 36.317N 115.173W 7.5 16 km (10 mi) NNW of Las
Vegas, NV
************************************************************
2.0 2000/12/14 10:04:28 36.175N 115.038W 0.0 9 km ( 6 mi) E of Las
Vegas, NV
**************************************************************
2.6 2000/12/15 16:10:35 35.998N 115.189W 0.0 15 km ( 9 mi) NNE of Erie,
NV