ISOSEISMALS: DISTRIBUTION OF APPARENT INTENSITY. 163 
SOUTHERN OREGON. 
The most northerly point on the coast for which we have a record of the earthquake 
shock having been felt on the morning of April 18 was at Coquille, Oregon. Here Mr. 
E. S. Larsen reports that Judge Harlocker was awakened by the shock at about 5 o’clock. 
Mr. Wilson and his wife were awakened and noticed the cord of an electric lamp swinging 
east and west. ‘The regulator in Mr. Wilson’s jewelry store, facing east, stopt. Others 
were awakened. Mr. Larsen also reports that the shock was felt at Bandon, and that 
at Kerby some claim to have felt it. 
At Williams some sleepers were awakened. At Glendale the shock was felt by 
about 10 per cent of the people. Reports have been received from. Nehalem, Tella- 
mook, Newport, Salem, Gardiner, Drain, and Eugene to the effect that the shock was 
not felt. At Port Orford a slight tremor was felt. 
Inland from the coast the following observations are reported by Mr. G. A. Waring: 
At Grant’s Pass the shock was slightly felt. At Medford a few people felt it, and one 
woman was awakened by a slight swinging of the partly open door. At Ashland the 
shock was lightly felt and the sulfur springs nearly doubled their flow for 24 hours, and 
then slowly returned to normal condition. A few people in Klamath Falls claim to have 
felt the vibration, but no clocks in a jewelry store were stopt.. In Langell’s Valley few, 
if any, felt the shock, but water in an east-west trough was noticed moving slowly from 
end to end. From two different sources it was reported that*at Merrill the shock was 
distinctly felt, and two old buildings in this place are said to have been shaken down. 
It was reported that the shock was felt in Drew’s Valley, but the people at the stage sta- 
tion there did not feel it nor know of any one in the valley who did. At Lakeview a 
seconds-pendulum clock facing south in a jeweler’s store stopt. The clock was about 
half run down, it being near the middle of the week. The jeweler says it had never stopt 
before. One other clock, a spring one, was reported to have stopt in this town, and two 
or three people claimed to have felt the vibration. Mr. Waring could not, however, find 
any of these people. At Paisley no shock was noticed on April 18, but on Thursday, 
April 19, about 1" 30™ a.m., a tremor was felt, strong enough to generally awaken people, 
and during the next hour and a half three more shocks were felt. Considerable excite- 
ment was caused, some people going out-of-doors and one rather delicate woman being 
made sick. But no doubt the fact that news of the San Francisco disaster reached here 
late the previous afternoon greatly increased the notice paid to these vibrations. Mr. 
Waring could learn of no clocks being stopt, the only material evidence being the shaking 
of a lamp from the edge of an unsteady center table. Enquiry failed to elicit any evidence 
of a shock having been felt at Bly, Bonanza, Summer Lake P.O., or Silver Lake. 
Mr. Waring closes his report with the following general statement: 
Judging from all I could learn, I think over most of south central Oregon the vibration 
was hardly perceptible to people awake. At Paisley and at Merrill stronger shocks were felt. 
The shock at Paisley was peculiar in being early Thursday morning, April 19, a sort of ““sym- 
pathetic” shock. No information concerning the time of the shock at Merrill was obtained, 
but I think it was on Wednesday morning at the time of the great quake. The greater 
intensity of shock at these two places is perhaps due to the underlying formation. Paisley 
is built on river ground at the edge of the Chewancan Marsh. Merrill lies in or near Langell’s 
Valley, by Lost River, which here sinks and flows thru swampy land in several places. 
KLAMATH MOUNTAINS AND NORTHEASTERN CALIFORNIA. 
Crescent City, Del Norte County (George Sartwell). — The earthquake was felt as a 
northerly and southerly temblor lasting about 5 seconds, with a short intermission. 
Several pendulum regulators stopt. In the easterly portion of the town the water in 
a mill-pond was noticed to surge back and forth, disturbing the logs. The ground in the 
vicinity is of a springy nature. On the morning of April 23 another shock was felt, and 
