Tonopah daily bonanza. [volume] (Tonopah, Nev.) 1906-1929, 1915-10-12
NEW EAULTING CAUSE
Of BIG EARTHQUAKE
EARTH's CRUST DROPS TWELVE
FEET FOR DISTANCE or
THIRTY NILES

That the big earthquake which oc-
CURED on the night Of October % was
due to a hitherto unknown fault in
the SonOma range Of mountains along
the foothills Of Mount TObin. 60 miles
south Of Winnemucca. il the opinion
Of J. G. Jones. professor Of geology Of
the state university, says the Whine
mucca Star.
Professor Jones and Professor
Bosrdmzn. II the engineering depart
ment Of the university. arrived from
Reno Saturday morning and left for
Pleasant valley. accompanied b. At
tOrney l.. @ Campbell, with Roy X.
Brown zs driver Of their auto. They
returned last evening and Professors
Jones and Boardman left for Reno
Speaking Of their observations along
the fault or break in the esTtA's crust.
which they examined from one end 70
the other. Mr. Campbell said 70 rep
resentasiVe Of the star:
The northern end OF the fault is in
the foothills Of Mount TObin about
three miles from Mud Springs, and
Il extends continuously almost due
south about 20 miles 10 point feE
miles belOw the Cooper & Uniacke
sanch. At its southern end the fault
spreads out ike hand From dis
sanee the line OF the break along the
fault resembles a railroad grade
Measurements Of the distance Of the
Sip or drop along the fault showed
il TO be from u 10 y feet. The angle
81 the fault is "a degrees, the dip be
INK to the wess tbs earth having
IL almost due north and south
In q feW places along the break
We found siickenslides. as found on
the walls Of veins, proving the plane
81 action. The sliekenslides showed
slight movement Of the sliding mass
10 the north. but our observations Of
the break where ii intersected fences.
roads and irrigation bitches showed
the drop TO be straight downward.
In the valley and along the hill
sides near the Cooper < Uniacke
ranch there were many light fractures
not along the line Of the fault These
fractures were caused By the tremen
dous jar when the slip occurred This
fracturlng. occurring on The surface
is seen for miles. Surface water came
up through these cracks. and the
ground had the appearance Of beinl
swept by an enormous clOudburst.
From our examination we found 10
evidence Of the great fault or slip be
ing the reopening Of an old one. I'M
conclusion being that the slip which
caused the earthquakes was a new
one. However, there were Indication
Of old faultiBg above the new break
the old fault scarp showing quit
plainly"
Professor Jones, speaking of III
probability Of other earthquakes, Will
this section as the center Of disturb
anee, gave Il as his opinion that Their
il no danger and that IL viii prObabl
be years before another similar dro
will occur on this fault plane lik
those OF the afternoon and night q
October 2 He said that for two 0
three weeks, however, light jars wi
be likely to occur, the result OF til
settling OF the great mass OF SCI
ments. which have TO adjust then
selves after the great moyemen
which occurred To this settling
due the light shocks which have o,
Cured since The big quake ea the 2nt
It il probable that Professor Jone
viii come to Winnemucca at an earl
date and deliver a public lecture o
earthquakes. when he Viii fully an
plainly explain what caused the grea
shake-up OF October I'd. which he sal
was great enough in violence to b
felt IN New YORK City He also sai
that faults OF the extent Of the ne
one at Mount Tobin usually are abol
five miles In depth