The Salt Lake tribune. [volume] (Salt Lake City, Utah) 1890-current, 1911-01-18
CRUST SL|PPING1
CAUSES N0|s[3
This Is Experts Explanation /,
Disturbances in Neighbor.
hood Of Theodore.
OPINION ADVANCED BY
THIESSEN BORNE Ou1
Eastern SeismOIogiSt Urr,,
Residents Of Zion to Collect
Data Oh TremOrs.

For the past few months nunerm.
ports have been received by A, H Th,..
sen OF the local weather bureau rev,r
Ing noises heard in the vicinity OF Tbe,.
dore. Wasatch county. and Ihex In Nm.
lard county. These noises vary IN Z.
tensity and began about five ysars 10.
Thoy are more noticeable during mo,,,
or cloudy weather and in spring, {aII Az
winter. seldom being heard In tina a.
summon time. Some have attribusa
these noises to distant thunder otIs.
to distant cannonading or SHOOTING /.
the mines, These evident sources Rss.
conclusion is that the noises are or -
ologichl source.
The weather office was appealed IA a.
an explanation OF the pheuomenaN n
some. apprehension was felt. particu]aS,
at Theodore. Mr.. Thiessen gave a ~
liminary explanation that the noises W.,
due to a slight slipping Of the crust a.;
tho escape OF steam and gas, causis<
explosions which would explain the M
nomena. but. feeling that tho explsns-
correct. he referred the matter to ths -
illogical survey and also to Prof. Eas-~
Fielding Reid Of johns Hopkins uniy.1
sity, who is one Of the foremost II M
the most eminent, seismologists Ia thj-
country Mr.. Reid writes:
Bear Out Thessen.
There are many places scattered cx,>
the world where sounds OF this lind ~
frequently heard, and many attsmp5>
have been made to explain their urif1
The most probable explanation ISJ
think, that they are due to a very attn
slipping or the formation OF very ans1
fractures In the underlying rock. csuI>
ing vibrations which are rapid enouft h
affect the senses as sound The eyDs
riences which Mr.. Smith mentions. ~
the sounds began about four yean ar,
and have not always existed in that "a
caliry, also agree with experiences elss<
where. In some places sounds of hi
kind lasted for few years and dIssv
peared. When earthquakes occur ViI4
are strong enough to be felt they m
very apt TO be accompanied by SOUND
and when the sounds occur without -
earthquake has really occurred, but It <
so feeble that It cannot be felt.
"At East Haddam, Conn, noises hasu
been heard ever since the country NJ
Indians reported the noises cartier at1
but they do not seem 10 have given n
to any important earthquakes
Urge Close Observance.
SIT might be a good thing if Mr.. sniff
would keep as careful O record as he ez1
of the sounds. noting the date, time ~
intensity and, as far as possible, the a.
rection from which they seem TO con-
He might also collect from people ivis<
In the neighborhood data regarding G
direction OF the sound. and thus mon
accurately determine its origin"
Director George Otis Smith Of the =
illogical survey agrees with the slIgf<
earthquake theory and sees no DANCE
In the noises.
Mr.. Thiessen suggests that those rsf-
sons living IN tho vicinity OF the n6fss
keep a record. as directed in Profess
Reid's letter, and send their reports \,
his office, where he can collect an
classify them and forward them TO Pn-
fessor Reid.