ISOSEISMALS: DISTRIBUTION OF APPARENT INTENSITY. 291 
Priest Valley (D. 8. Jordan). — On May 18 I went to Priest Valley, in the southeast 
corner of Monterey County, 37 miles east of King City. I had heard that rumblings 
were frequently heard in the valley, and that people were moving out on account of 
them. There was little trace of the earthquake at King City. At Lonoak, 16 miles 
east, chimneys were thrown down and a mild earthquake was felt. At Priest Valley, 
which is near the line of the old fault and at the very foot of the main range of the Ga- 
vilan, the earthquake shock was very severe, apparently coming from the north. Chim- 
neys were thrown down, dishes were broken, and the contents of the store thrown over 
the floor. Rumblings were alleged to have been heard by a man named George Brew. 
He had been hunting in the mountains, and said he had heard noises like cannonading 
in the ground at night. This was before the great shock. 
There were slight landslides and cracks along the edge of the creck banks. There 
is, however, no trace of the great crack in the valley. No one had seen it cross the stage 
road; and the oil pipe line from Alealde, in Fresno County, goes thru to the Salinas 
Valley without any break. The people said to be moving out of the valley were two 
frightened women up in a mountain gorge, whose husbands had gone to look after friends 
in San Jose. It is evident that the main crack did not reach as far as Priest Valley, and 
the shock at that point was not very different from that at San Jose, except that the 
blow was more direct, with less twisting motion. 
MONTEREY BAY AND EASTWARD. 
Pacific Grove, Monterey, and Del Monte (A. 8. Eakle). — At-Pacifie Grove very slight 
damage resulted from the shock, altho according to residents the vibrations were very 
severe, in a northeast to southwest direction. Only one or two houses had chimneys 
cracked, tho there are several massive chimneys, some with heavy ornamental tops. 
The town is situated on massive porphyritie granite, and the overlying soil is not deep. 
Its situation was evidently the reason for the slight damage done. The Pacific Grove 
light-house is situated about a mile southwest and this showed more severe effects. The 
lamp is enclosed in a ribbed metal frame which rests on a brick tower and dome. The 
vibration of the ribs caused them to strike the metal chimney in the center of the top 
and dent it on the easterly side. The motion of this upper portion caused the brick dome 
supporting it to crack immediately at the base of the curved dome. There was no 
displacement of bricks, the crack being a fine one, visible both within and without the 
tower, and completely encircling it. The light-house is built on a sand-dune and there is 
an estimated thickness of 80 feet of sand upon the underlying rocks. This sand founda- 
tion probably accounts for the apparently greater intensity of the shock here than in 
the town. Some of the objects in the rooms of the house were also slightly misplaced. 
Judging the intensity of the earthquake by the damage it did in Pacific Grove, it would 
probably be classed as VI in the Rossi-Forel scale, as it was severe enough to awaken 
practically every one, tho no windows were broken, so far as could be ascertained. 
Monterey experienced practieally the same intensity. I could learn of no damage 
done to the houses, the only damage reported being of some glassware in a few stores. In 
some houses furniture was moved slightly, and top-heavy pieces were overturned. This 
town, like Pacific Grove, is on a good rock foundation; but in places the sand is deep. 
Del Monte suffered the most, as practically every chimney of the hotel was cracked or 
thrown. There were over 50 chimneys in the hotel, and half of them were thrown down ; 
one crashing thru the roof on the west side of the hotel and causing two fatalities. The 
chimneys were tall and top-heavy, having ornamental tops; and while the damage to the 
interior of the hotel was very slight, showing that the earthquake was not of a violent 
type, the vibrations were sufficient to throw these top-heavy chimneys. The hotel is on 
